85460069-3fl00276-wb-ed03-p11-7302-7330-isam 2ver

3FL 00276_A AAAA WBZZA Ed 03 1 © 2008 Alcatel-Lucent., All rights reserved

Alcatel-Lucent University Antwerp 1

University

Alcatel 7302-7330 ISAM

Alcatel-Lucent University Antwerp

University

During class please switch off your mobile, pager or other that may interrupt.


2

Course objectives

At the end of the course, you will be able to …

explain why we need the ISAMwhat is the ISAM? – what can the ISAM be used for?

summarize the general topologiesSubtending vs. expansion

describe the architecture of the ISAM familydescribe the functions and boards part of the ISAM family


3

Table of contents

Why the ISAM? . . . . . . . p. 4

What is the ISAM? . . . . . . . p. 9

General topology . . . . . . . p. 19

Hardware . . . . . . . . p. 28

Equipment practice . . . . . . . p. 34 XD . . . . . . . . . p. 36FD . . . . . . . . . p. 78

REM . . . . . . . . . P. 115

RU . . . . . . . . . P. 129

Addendum . . . . . . . . P. 130



University

Why the 7302/7330 ISAM?

Why a multi-service IP DSLAM?

> … or a justification – The usual marketing/business stuff> It’s all about the introduction of new services, in general voice and video services, where the

video services can consume/take a lot of bandwidth in the network of an operator. Let’s call this …

> … the need for speed of customers.

> Operators translate this in a couple of ‘requirements’, namely• the need for increased revenue• the need for service bundling• the need for high market penetration• the need for new access technologies


5

Impact of the need for speed on access

Multi-service from a single access platform is key.Triple Play : Data, voice and Video

Increased need for bandwidth results in …new BB access technologies (Multi-DSL, VDSL, FTTU)

deployment of deep fiber & remote devices

upgraded capacity in the DSLAM

Access network architecture evolves to IP multi-edge & Ethernet:initiated by DSLAMs providing both ATM/GE interfaces

DHCP is the end-game for VoIP and STBs, PPP remains for HSIA

this requires a service enabled edge, ensuring security & guaranteed QOS

Access platform becomes an intelligent multi-service hub …which needs centralized subscriber & access management

which is IP empowered (e.g. native multicast, IGMP proxy)which needs optical Ethernet termination

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22

33

> So we started off saying that customers do have the need for speed, i.e. faster lines, bigger capacities on their lines. This impacts the operators a lot, and the slide above indicates four main areas operators focus on.

> For the single topic mentioned here, some slides explain them on following pages.> Multi-DSL: ADSL and the new ADSL2 flavors: ADSL2, ADSL2+ & READSL2> SHDSL: single pair high speed DSL> VDSL: Very High Speed DSL> FTTU: fiber to the User> STB: Set top Box, attached to your TV set


6

The DSLAM as a triple play capable device

Leased line QoS Predictability, control

Strict Multicast QoSBroadcast capacity

Strict QoS point to pointHigh capacity

Real Time, no delayHigh availability

Best effortNot impacting

One or multiple

Aggregation network(s)

Business Access

Video on DemandPersonal Video Recorder

voice & Video phony

High Speed Internet

Broadcast TV

DSLAM, Litespan, FTTU, Wimax support

11

> The traditional DSL access multiplexer (DSLAM) (being an ATM DSLAM or an IP DSLAM) is built and tailored for supporting one single service: the high speed internet access service (HSIA), which is a best effort service.

> Given the increased penetration of multiple services over the broadband infrastructure, these nodes are evolving towards multi-service access nodes, focusing on guaranteeing the delivery of multiple services towards all users, and this for business as well as residential subscribers.

> The major challenge to be solved is the capability to deliver the complete service kiosk to every subscriber, with different customer profiles (for both business and residential subscribers), with different QoS and service level agreement (SLA) constraints.


7

ENTERTAINMENT COMMUNICATION BUSINESS

VOD TV Broadcast

Musicdownload

E-mail, chat, and instant message

Unified messaging

IP based Telephony

Video Communication

The IP-DSLAM requirements …

… for different types of services/subscribers

Gaming

Beyond Internet Access…Beyond Internet Access…Beyond Internet Access…

Teleworking

IP-VPNvoice over IP

Web hosting

Specific network Requirements…Specific network Requirements…Specific network Requirements…

•More Bandwidth•More Quality of Service•Multicast (zapping)•More Security

••More BandwidthMore Bandwidth••More Quality of ServiceMore Quality of Service••Multicast (zapping)Multicast (zapping)••More SecurityMore Security

•Strict Quality of Service• Upstr and Downstr• Delay, packet loss• Service Availability

•More Security•Latency

••Strict Quality of ServiceStrict Quality of Service•• Upstr and DownstrUpstr and Downstr•• Delay, packet lossDelay, packet loss•• Service AvailabilityService Availability

••More SecurityMore Security••LatencyLatency

•More Security•Better Availability•High Bandwidth•Quality of Service

•CoS options•Committed SLA

••More SecurityMore Security••Better AvailabilityBetter Availability••High BandwidthHigh Bandwidth••Quality of ServiceQuality of Service

••CoSCoS optionsoptions••Committed SLACommitted SLA

22

> Each service demands its own specific network requirements. Consequently migrating to a range of new services beyond high-speed internet access requires that not only the access node, but also the transport, management and service architectures evolve accordingly.

> The existing access network needs to evolve from the current “best effort” service to an architecture that supports multimedia services.


8

The DSLAM as a service hub

The service delivery point is now closer to the subscriber

3- Advanced Multicast

BTV Server

ISP 1..n

4- Authentication

e.g. GE hubbing,Central mgmt

e.g. broadcast streams are not duplicated in the network

e.g. control/block L2 user to user communication (e.g. VoIP)

e.g. advanced authentication

& session awareness

(e.g. DHCP relay option 82)

2- Security1- Service node

5- IP intelligence e.g. PPP, IP aware bridge, IP routing

33

> The access nodes in the central office (CO) are now intelligent multi-service hubs, providing Gigabit aggregation for subtended remote units or management system and access point to all devices.

> Bringing the service delivery point closer to the subscriber is essential for the success of multi-services deployment, providing improved QoS, scalability and reliability. This enhancedarchitecture provides an increased level of service knowledge in the CO by distributing theintelligence from the central BRAS towards the access nodes.

> The next generation multi-service access nodes need to ensure that the variety of service types are properly prioritized, processed and that services are classified onto dedicated virtuallocal area networks (VLANs) or permanent virtual circuits (PVCs) extending into the secondmile of the access network. The increased need for bandwidth for video services has lead tostrong innovations inside the access nodes. Dedicated video resources, native layer 2 multicast and IGMP proxy lead the way to multi-service.

> In addition, advances such as network processors, non-blocking architectures, subscriber management relay or termination, increased Gigabit connectivity and advanced security features (tracking users to a port to prevent fraudulent activity and denial of service attacks) are critical features in the network evolution process.



University

What is the 7302/7330 ISAM?

> Consider the ISAM to be a two stage switch:

• first stage is at the NT (SHUB), with 24 GE ports,• second stage is at the LTs (ASAM-CORE).

LT cards are cards terminating DSL lines.– the number of slots depends on the hardware:

> 7302 ISAM CO (XD) 16 slots

> 7302 ISAM CO (FD) 16 or 18 slots

> 7330 FTTN host shelf (XD) 4 slots

> 7330 FTTN host shelf (FD) 8 or 10 slots

> 7330 FTTN REM 1 “slot” (no pluggable boards)– the number of ports on an LT depends on the LT type:

> 24 or 48 ports (XD or FD equipment in the future more than 48 ports on FD LT’s)


10

Intelligent Services Access Manager (ISAM) family

Non-Blocking IP Access Platform for 3Play delivery

Central Office

7302 ISAM

Small CO / Outside Plant7330 ISAM FTTN

MDU/Building

7356 ISAM FTTB REM

Copper access

Cabinet

7357 ISAM FTTB SEM

7354 ISAM FTTB RU

MDU/Building

7330 ISAM RA

Small CO / Outside Plant

> The figures on the slide shows equipment based on eXtreme Density equipment practice (XD), but also Flexible Density equipment practice is an option (see further).

> Focus in this presentation is copper delivery: 7302 and 7330 ISAM> Solutions for different environments

• 7302 ISAM (multi-DSL, VDSL, SHDSL) • 7330 ISAM FTTN (multi-DSL, VDSL, SHDSL) • 7342 ISAM FTTU (GPON)

> Access Manager (ISAM) family supports a range of deployment practices including:• 7302 ISAM for DSL-focused deployments from large COs• 7330 ISAM fiber to the Node (FTTN) for smaller COs or serving area interface locations

and remote outside plant locations• 7330 ISAM FTTN Remote Expansion Module (REM) for multi-dwelling units and small

remote outside plant locations• 7342 ISAM GPON for higher bandwidth Gigabit passive optical network (GPON)-focused

deployments from COs> The whole range of access products – including the ASAM and ISAM family – can be

managed from a single, dedicated management platform.> FTTB Fiber To The Building


11

Intelligent Services Access Manager (ISAM) family

Non-Blocking IP Access Platform for 3Play delivery

7342 ISAM FTTUComprehensive ONT family

fiber access

Customer

FTTB ONT

GPON-FTTB

> The figures on the slide shows equipment based on eXtreme Density equipment practice (XD), but also Flexible Density equipment practice is an option (see further).

> Focus in this presentation is copper delivery: 7302 and 7330 ISAM> Solutions for different environments

• 7302 ISAM (multi-DSL, VDSL, SHDSL) • 7330 ISAM FTTN (multi-DSL, VDSL, SHDSL) • 7342 ISAM FTTU (GPON)

> Access Manager (ISAM) family supports a range of deployment practices including:• 7302 ISAM for DSL-focused deployments from large COs• 7330 ISAM fiber to the Node (FTTN) for smaller COs or serving area interface locations

and remote outside plant locations• 7330 ISAM FTTN Remote Expansion Module (REM) for multi-dwelling units and small

remote outside plant locations• 7342 ISAM GPON for higher bandwidth Gigabit passive optical network (GPON)-focused

deployments from COs> The whole range of access products – including the ASAM and ISAM family – can be

managed from a single, dedicated management platform.> FTTB Fiber To The Building


12

ISAM product portfolio overview

Internet

7450 ESS7750 SR

IPTV

VoIP 7302 ISAM

7330 ISAM FTTN

7356 ISAM FTTB REM

VDSL2/ADSL2+

P2p Fast Eth

VDSL2/ADSL2+

P2p Fast Eth

VDSL2

CO Cabinet MDUAggregation NetworkVDSL2

7354 ISAM FTTB RU


13

Service hub• Up to 7 or 8 FE/GigE for uplinks &

subtending

• Link aggregation

Ethernet access for SMEs• FE/GE - optical or electrical

• Long reach with 1000B-Zx (up to 80km)

LT• 48 Multi-ADSL / 24 VDSL / 24 SHDSL

• XD 768 subscribers per shelf, 3072 per 60x60

• FD 864 subscribers per shelf

• splitterless practice

• Full metallic test access

An Alcatel product• High reliability

• High quality supply chain: in time delivery, first time right, spare parts locally available

• Local presense of expertise and support

• End-to-end QoS with 7450 ESS

7302 ISAM – Product highlights

Non-blocking video delivery• 1 Gigabit per LT

• IGMP proxy at LT

• Layer 2 multicast inside

• line rate packet forwarding

• 100% BTV, 100% VoD

Wire Speed service delivery• 16 LT slots @ 1Gbps wire speed

• 24 Gbps non blocking switch

• Distributed processing

• Layer 2 QoS (Strict priorities)

Continuity with ASAM• Same AWS management

• Same DSL provisioning SW

• Same DSL chipset

Service Intelligence• Bridging & Cross-Connect

• PPP termination

• DHCP option 82

• IP routing

> The 7302 ISAM as depicted over here is mainly used for central office (CO) deployment.


14

7330 ISAM FTTN – Product highlights

Integral part of the Alcatel User-Centric Triple Play Solution

FTTN system is a compact remote IP DSLAM designed to address the growing need for a deep fiber access solution

Enables service providers to offer IPTV and other ultra-high bandwidth applications while leveraging the existing copper plant

FTTN can support anywhere from 24 to 500 subscribers per node

> The 7330 ISAM FTTN (Fiber To The Neighborhood) has the same feature set as the 7302 ISAM, except for the number of lines attached (scalability).

> Targetted market:• small number of lines• remote deployment


15

DSLAM portfolio evolution

Add Multi-Service

7300 ASAM R4ATMATM

aggregationaggregation

7301 ASAM R5 ATMATMaggregationaggregation

Broadcast VideoVideo on Demand

High Speed Internet

Business access

Add Ethernet Aggregation

.

.

.

..

..

..

High Speed Internet

EthernetEthernetAggregationAggregation

ATMATMaggregationaggregation

7301 ASAM

One Management

Cost effective bandwidth

For high Video increase

7300 ASAM R4

EthernetEthernetAggreAggre--gationgation

HSI & Ethernet only

FE

HSIA Towards a full IP aggregation

network

EthernetEthernetAggregationAggregation7302 ISAM

Multi-Service for Ethernet only

Multi-Service for ATM and

Ethernet

Continuity in operation & zero effort introduction (practice, management, DSL Software, QOS)Continuity in operation & zero effort introduction (practice, management, DSL Software, QOS)

> The 7302 ISAM is particularly interesting for those operators who are planning a fast evolution towards multiple services over the broadband infrastructure. These are typically service providers looking to implement a triple play package of internet, video and voice over copper as well as business internet and corporate access services for SMEs.

> The Alcatel 7302 ISAM is tailored for Ethernet aggregation. Typically the ISAM does not offer any ATM network connectivity. There is however a solution to connect to an ATM network, but that is not covered in this presentation.

> The 7302 ISAM is initially targeted for operators with Ethernet aggregation networks deploying new DSLAMs in the COs. This market is distinct from that of the Alcatel 7300 ASAM and the 7301 ASAM, which offer a migration path towards Ethernet aggregation with the existing Fast Ethernet and Gigabit Ethernet uplink products while keeping the legacy connectivity to the existing ATM network. As a final migration step, the 7300 and 7301 ASAM upgraded with Ethernet uplinks can be subtended to the 7302 ISAM to operate in a 100 percent Ethernet aggregation environment, with guaranteed services towards all the subscribers.


16

From the ASAM concept …

Internally the ASAM is ATM-based

Traditionalbroadbandarchitecture

1st mile

xDSL

ATM over DSL

E1/STM-1/4

ATM

2nd mile

ASAM

ATM swich

ATM

DSL withEthernetbackhaul

xDSL

ATM over DSL

FE, GbE

EthernetEthernet

swich

ASAMATM

ATM <==> Ethernet

> Before describing the 7302 ISAM platform, let us first position it in the “world of DSLAMs”. > Traditionally, a DSLAM (DSL Access Multiplexer) had an ATM core aggregating traffic from all

ATM based xDSL access lines. Given that most edge networks were - and mostly currently still are – based on ATM switching and/or SDH transport, it is quite natural to keep ATM as underlying layer 2 technology and provide interworking to IP deeper in the network (e.g. at the BAS).

> The need for a DSLAM with Ethernet and/or IP capabilities is widely recognized. The specific term “IP DSLAM” can however be interpreted in different ways, for in the most generic sense “IP DSLAM” means “a DSLAM with IP/Eth functions that interfaces with an Ethernet aggregation network”.


17

… to the ISAM concept

Internally the ISAM is Ethernet based


xDSL

ATM over DSL

FE, GbE

EthernetEthernet

swich


xDSL

ATM over DSL

FE, GbE

EthernetEthernet

swich

ASAM

ISAM

ATM

Eth

DSL withEthernetBackhaul

xDSL

Eth over DSL

FE, GbE

Ethernet

Ethernet swich

ISAM

Eth

1st mile 2nd mile

“Direct Ethernet” Ethernet

ATM <==> Ethernet

> On the slide you see 3 possible interpretations of an IP DSLAM, and at the same time this slide positions the 7300/7301 ASAM versus the 7302 ISAM.

> Option A represents in fact an ATM DSLAM with ATM/Ethernet interworking function at the trunk interface. That means that the end-user traffic (e.g. IP/Eth or IP/PPP/Eth) remains encapsulated in ATM until the point where the traffic is aggregated and sent into the edge network – i.e. the internal architecture of the DSLAM in this case is still based on ATM.

> Option B shows a DSLAM where the ATM/Ethernet interworking function is no longer at the trunk interface, yet at the termination side of the xDSL lines. That means that the end-user traffic (e.g. IP/Eth or IP/PPP/Eth) is decapsulated from ATM at the point of entrance in the DSLAM and processed as Ethernet traffic inside the DSLAM – i.e. the internal architecture of the DSLAM in this case is based on Ethernet.

> Finally option C shows a DSLAM that is not only based on an Ethernet switching core, but is even capable of terminating Ethernet based access interfaces. These access interfaces can be Ethernet based xDSL (such as packet based VDSL) or direct Ethernet interfaces (e.g.optical links to connect end-users). The 7302 ISAM can currently terminate direct Ethernet user interfaces as well as packet based VDSL and SHDSL (EFM = Ethernet in the First Mile).


18

Interfaces

7302 User InterfacesADSL/ADSL2/RE-ADSL2/ADSL2+, ann.MVDSLSHDSLDirect Ethernet over fiber

7302 network InterfacesUplinks, subscribers or subtendingFE/GE Optical/Electrical

FTTN host Similar to 7302 (but no FE Optical)Extra link type = expansion linkslink between REM and FTTN host

FTTB REMNo fiber access or subtendingVDSL only ≤R3.3

ISAMCO

DSL Access

fiber Access

Subtending Links

FE/GE Uplinks

Ethernet Switch/Router

7302 ISAM 7330 FTTN

FTTNhost

REM

REM expansion link

> Logically, the 7330 FTTN host and the REM(s) behave as one single ISAM. The REM has splitter and LT functionality and is managed as if it is a LT board inserted in the FTTN host.

> ---> host (H)> Remote Expansion Module (REM)



University

General topology


20

The ISAM in the access network

NSP IP backbone

NSP IP backbone

NSP IP backbone

EMAN

IP EdgeRouter

EthernetSwitch

ISAManyIP-DSLAM

ISAM

m*FE

k*FE/GE

ADSL

ADSL

ADSL

ISAMADSL

GE

GE

ISAM

ADSL

n*FE

p*FE/GE

l*FE/GE

NSP IP backbone

FE/GE

FE/GE

FE/GE

> At the user side, the ISAM terminates ADSL/ADSL2/Re-ADSL/ADSL2+, SHDSL & VDSL links. It is also possible to terminate a limited number of Fast Ethernet or Gigabit Ethernet links (FE/GE).

> At the network side, the ISAM terminates GE or FE links. In case of more than 1 FE or 1 GE, Ethernet link aggregation can be used. The Ethernet links can also be connected to 1 or more Ethernet switches. The Ethernet switches forward the frames over the Ethernet based aggregation access network until it reaches the IP Edge Router of the corresponding network service provider. At the IP Edge Router, the frame enters the IP backbone of the network service provider. The ISAM can also be connected directly to the IP Edge router, in which case the Ethernet aggregation network is reduced to 1 or more parallel Ethernet links.

> At the user side it is also possible to connect subtending IP-DSLAMs. It is possible for example to connect ISAMs in cascading model. The last system can be any IPDSLAM, e.g. an ISAM/FTTN, or an Alcatel ASAM with an Ethernet uplink (FENT or GENT) or any other kind of DSLAM with Ethernet uplink.


21

Cascading topology

Cascading topologylink aggregation (n*FE/GE)

no strict limitation on the number of subtended ISAMs.

7302 ISAM7330 ISAM

7302 ISAM7330 ISAM

7302 ISAM7330 ISAM

xDSL xDSL xDSL xDSL

EthernetDSLAM

N * FE/GigE N * FE/GigE N * FE/GigE N * FE/GigE

EMAN node

> The cascaded topology allows installing shelves and racks in a chain. The so-called subtended system is connected to the main system through a subtending interface (such as Fast Ethernet and Gigabit Ethernet) and shares the network interface of the main system. Depending on the exact purpose (expanding to large DSLAMs in certain central offices and/or increasing coverage in the network by positioning DSLAMs at as many locations as possible), the subtended systems can be located near the main system (=co-location) or at a remote location.

> There is no strict limitation on the number of subtended ISAMs. Each ISAM has its own free running clock. Of course, the available and necessary bandwidth has to be taken into account.

> Note that also other types of DSLAMs can be cascaded of an ISAM via Fast or Gigabit Ethernet interfaces: 730x ASAM, 730x ASAM-c, 7324 RU, non Alcatel DSLAMs.

> Sometimes, the cascaded topology is also referred to as the daisy-chained topology.


22

Star topology

Star topologylimitations: number of physical interfaces

link aggregation (n*FE/GE)

7302 ISAM

xDSL

7302 ISAM

7302 ISAM

7302 ISAM

xDSL

EthernetDSLAM

EMAN node

N * FE/GigE

> A 7302 ISAM can also be used as an aggregation multiplexer to collect traffic from multiple directly connected subtended DSLAMs. Rather than adding subtending levels, we then create a star architecture. Again, other DSLAMs can be subtended through FE/GigE and the subtended systems can be located near the main system or not.


23

Ring topology

Ring topologylimitation by number of hops of STP

link aggregation (n*FE/GE)

N * FE/GigE

EMAN node

7302 ISAM

xDSL

7302 ISAM

xDSL

7302 ISAM

xDSL

7302 ISAM

xDSL

N * FE/GigE

N * FE/GigE

N * FE/GigE

N * FE/GigE

> It is possible to put the ISAM in a ring architecture, i.e. a special case of the cascading architecture where the last system of the chain has yet another uplink to the EMAN network as well.

> The maximum number of devices in the ring is 8, because of delay (R)STP.


24

Subtending vs. Expansion topologies (1/2)

CO

EthernetSwitch

7330 host

Cabinet/MDU

7342

7302

7330 host

CO or Cabinet

7356 REM

expansion link

subtendinglink

7330 RA 7357 SEM

7354 FTTB RU

7356 FTTB REM

expansion link

> The 7330 FTTN host supports the 7356 ISAM FTTB REM (Remote Extension Module) and the 7357 SEM (Sealed Extension Module)

> Each REM/SEM is equivalent to adding a single remote LT unit to the host.> An 7330 ISAM FTTN shelf that is functioning as a host shelf, supports up to 12 remote LT

units (≥R3.3).> The Alcatel-Lucent 7354 Intelligent Services Access Manager (ISAM) Fiber-to-the-Building

(FTTB) Remote Unit (RU) is a compact full-service IP access node for MDU and cabinet deployments, designed to deliver up to 100Mbps over VDSL2. (24 ports)


25

Subtending vs. Expansion topologies (2/2)

subtendingconnecting multiple ISAM systems (7302 CO or 7330 host)via Ethernet subtending linksstandalone nodes: each node provides the Ethernet switch and aggregation function and is managed separately

expansionconnecting ISAM host shelf (7330 only) with remote LTs, via expansion links (optical)switch and aggregation function in host shelf onlyone system: host shelves are managed together as a single system

> No ASAM-like extension supported in ISAM/FTTN

> ASAM-like extension daisy-chaining of ASAM shelves via extender cables and cards. (This is not supported in ISAM.)


26

Terminology and interfaces (1/2)

No expansion link in the 7302 ISAM

7302 ISAM

Eth

NT

Aggr Function

Contr function

Physical user links•ADSL/ADSL2/READSL2•ADSL2+•VDSL2 - EFM•SHDSL – EFM or ATM•Optical Ethernet

LT

Subtending•GE/FE •optical/electrical

User link•GE/FE •optical/electrical

Control links•FE - electrical

ASAM links•GE - electrical

network link•GE/FE •optical/electrical

> User link: direct Ethernet connection to the user. No ATM involved. 1 port 1 Gigabit link.

> (data) aggregation function = LanX = Servicehub (Shub)• The name Shub is used in the ISAM command window (CLI)

Internal interfaces:External interfaces


27

Terminology and interfaces (2/2)

Eth

NT

Contr function

Aggr Function User link

•GE/FE •optical/electrical

Physical user links•ADSL/ADSL2/READSL2•ADSL2+•VDSL2 - EFM•SHDSL – EFM or ATM•Optical Ethernet

LT

LT

REM

Physical user linksxDSL

network link•GE opt./elect.•FE electrical.

7330 ISAMFTTN HOST

ASAM links•GE - electrical

expansion links•GE - optical

Subtending•GE/FE •optical/electrical

GENCNCNC



University

Hardware


29

The ISAM building blocks

* I.f.o ISAM-shelf typeTotal ASAM links + expansion Links <=16/18

0* y*

LT module

CPE

IWF

OBC

1 PVC = logical user port(ATM)/IWF

xDSL /SHDSL

CPEVDSL /SHDSL

LT module

TAU

802.3port

SP

controlmanagement

Aggregation function (SHUB)External

ethernet links GE/FE

1->max 7/8

ASAM links

Control link

FE

AGGR-OBC

……x*1

expansion Links

GE

GE

ACU Clock Power

SMAS

802.3port

802.3port

SP

EFM

> OBC = On board Controller> IWF= InterWorking Function> ---> The Intelligent Services Access Manager (ISAM) is a frame based Digital Subscriber Line

Access Multiplexer (DSLAM), i.e. a digital subscriber line (DSL) access multiplexer which is based on a (ethernet) frame forwarding architecture in a packet aggregation network.

> Different types of ISAM do exist, but conceptually they have the same building blocks. The mapping of functional blocks to hardware modules depends on the equipment practice chosen.

> Data forwarding in the ISAM is accomplished by interworking functions (on LT’s) and/or an aggregation function (on the NT): both of them include a forwarding engine.

> The core of the ISAM is the 24 port Ethernet service hub (shub or aggregation switch), providing a 24 Gbps switching capacity.

> The line termination module terminates subscriber interfaces and provides the interworkingand aggregation function towards the service hub.

> The LT-module actually consists out of 2 functional submodules. The transport function ant the IWF(Interworking function).

> The transport function varies with the type of access technology used (ADSL, VDSL, SHDSL, Ethernet, ...).

> For DSL interfaces, the transport function contains:• the High-Pass Filter (HPF) , separating the DSL portion of the signal spectrum from the

narrowband signal (POTS or ISDN)• the DSL modem function, providing the physical layer termination of the DSL signal


> The line termination module (cont’d)Transport function On the slide you see that the LT module terminates VDSL or SHDSL (EFM) and below the line termination module terminates xDSL or SHDSL (ATM-based). Depending on the access technology terminated, you will have a different type of LT board.

The IWF handles frame forwarding, including sophisticated filtering and traffic management (QoS), all at the line rate of the transport medium.Internally the ISAM is Ethernet based. As a result of this, the IWF will, in case of DSL interfaces with ATM transport mode, also remove ATM/AAL layer. Line termination modules ( located on LT-boards), are connected to the aggregation function via the ASAM-ports or expansion port the line card can be a separate box (REM) (which doesn’t behave as a standalone node!).Links between aggregation function and LT-boards are called ASAM-links. Links between aggregation function and REM are called expansion-links.

> The remaining ports on the service hub can be allocated to uplink interfaces (connecting to the upstream E-MAN), to subtending interfaces (connecting to downstream Ethernet DSLAMs) or to user Interfaces (connecting directly to 802.3 subscribers).

• IEEE 802.1d STP and IEEE 802.1w RSTP are supported on network ports only.• IEEE 802.3ad Link aggregation is supported on network ports and subtending ports.

> The max. number of LT’s and the max. number of uplinks depends on the equipment practice. > The packet processing architecture of the ISAM family is future-safe and specifically designed for

multimedia and business service delivery over IP/Ethernet aggregation networks. > The Control and Management function is required for maintenance and operations, remote

inventory information, shelf management. As the name indicates, this function implements the management plane of the system and part of the control plane, in particular the part related to subscriber management which is typically not found in an Ethernet switch product. The Control function is distributed over multiple general-purpose processors, managing the system, service hub and LT modules in a hierarchical way.

> The ACU (alarm Control unit) module provides collection & distribution of equipment & customer alarms.

> The clock module generates the system clock. It consists of a local oscillator which can optionally be locked to an external reference clock (BITS).

> The TAU (Test Access unit) function provides access to an external line test head (for Metallic Test Access) and provides control of the MTA relays on the splitter modules.Manages the switching of signals between the MTA ports (located on the PWIO-B) and subscriber lines (connected to appliques).

> The Power function is the interface point to the external DC power supply systems and provides power monitoring, filtering, distribution and securing functionality.

> The 802.3 Port function provides the physical layer interface for Ethernet ports. Electrical auto-sensing 10/100/1000 RJ45 ports and optical FE/GE ports on SFPs are supported.

> Server modules can be plugged into LT slots. Instead of providing subscriber connectivity, they typically provide an auxiliary central processing function, e.g. the ISAM-V IVPS (ISAM voice Packet Server) module, which provides a centralized signalling interface to the call server or softswitch. Server modules are not discussed in this presentation, nor indicated on the drawing. They are discussed in separate dedicated courses.

> SMAS module System MAC Address storage.The SMAS module is integrated on a remote inventory PROM that contains the MAC address of the ISAM (NT). Upon booting up of the ISAM, the MAC address is read by the active NT (or the standby NT in case of failure of the active NT). The 24 MAC-addresses for each port on the SHUB, are derived from the system MAC address that is stored on the SMAS PROM.By having this MAC address stored on a separate board, the same MAC address can be maintained when swapping between active and stand by NT, or when a NT board is to be replaced/upgraded. The SMAS module is considered an integral part of the shelf. Where the SMAS functionality is integrated depends on the equipment practice.


31

LT module for xDSL

LT

OBC

ADSLPOTS

xDSLmodem

x/ATM/xDSL

High PassFilter

ADSLPOTSADSL

x/ATMEthernet

ATM/EthIWF

Backplane i/f from connector

Backplanei/f to NT

> The figure shows a schematical view of the line termination (LT) module in case of XDSL, indicating the main functional blocks.

> High-Pass Filter (HPF)The incoming xDSL signal first passes a HPF to separate the data portion of the signal (higher frequencies) from the PSTN signal (lower frequencies)

> xDSL modemThe xDSL modem module (also known as MDM = MoDem Module) is the xDSL PHYsical interface (PHY) of the LT

> ATM/Eth InterWorking FunctionThe InterWork Function Module (IWFM) on the LT provides following functions:

• the termination of ATM - reassembly of datapackets• traffic management• packet forwarding and filtering• other layer 2/3 protocols

> On board ControllerThe On board Controller module (OBC-M) on the LT provides following functions:

• board control signals• board ID signals• information storage (EEPROM)• DHCP functionality


32

LT module for VDSL

LT

VDSLPOTS

VDSLmodem

Ethernet/VDSL

High PassFilter

VDSLPOTSVDSL

Ethernet

ATM / ETH Forwarding

engine

OBC


Backplanei/f to NT

ADSLmodem

ADSLPOTS

x/ATM/xDSL

ADSLPOTSADSL

x/ATMEthernet

X/AT

MX/ETH

> The figure shows a schematical view of the line termination (LT) module in case of VDSL, indicating the main functional blocks.

> High-Pass Filter (HPF)The incoming VDSL signal first passes a HPF to separate the data portion of the signal (higher frequencies) from the PSTN signal (lower frequencies).

> VDSL modemThe VDSL modem module is the VDSL physical interface (PHY) of the LT

> The InterWork Function Module (IWFM) on the VDSL LT provides following functions:• traffic management• packet forwarding and filtering• other layer 2/3 protocols



> From NVLT-C onwards, ADSL and VDSL2 will be supported on the same board


33

LT module for SHDSL

LT

SHDSLmodem

Ethernet/SHDSL

SHDSL

Ethernet

OBC

Backplanei/f to NT

SHDSLmodem

(ATM)/EthIWF

x/ATM/SHDSLx/ATMEthernet


X/AT

M

X/ETH

SHDSL

> The figure shows a schematically view of the line termination (LT) module in case of SHDSL, indicating the main functional blocks.

> On the SHDSL LT module you will not find any High-Pass Filter since SHDSL is using the full spectrum. There can be no overlay with POTS or ISDN!

> SHDSL modemThe SHDSL modem module is the SHDSL physical interface of the LT.

> The InterWork Function Module (IWFM) on the SHDSL LT provides following functions:• traffic management• packet forwarding and filtering• other layer 2/3 protocols• SHDSL can be ATM based or EFM based.

Depending on the technology used by the SHDSL modem the IWF on the SHDSL LT module will provide termination of ATM or EFM and forward datapackets (Ethernet or IP).





University

Equipment practice

> Equipment practice is mainly about the mechanical and electrical aspects of the equipment:• physical dimensions, • number of shelves allowed in a rack, • power feeding, • electro magnetic interference• …

> In this course we are covering eXtreme Density equipment practice (XD) as well as Flexible Density equipment practice(FD).

> FD equipment practice is the successor of the XD equipment practice. > For both equipment practices, ISAM 7302 and ISAM 7330 FTTN products will be covered.


35

Equipment practice

eXtreme Density - XD ISAM 7302 16 slot ETSI

dedicated shelf for line boardsdedicated shelf for splitters

ISAM 7330 FTTN 4 slot ETSIline and splitter boards are in same shelf

Remote Expansion Module1 line board and 1 splitter board in a separate enclosure behaving as a remote

LT connecting to an 7330 FTTN host shelf

Flexible Density – FDuniversal slot concept allows any mix of xDSL LTs, splitters, fiber LTs, voice cards in the same shelf

NT-B slot + NT I/O slot can be used as LT slot

ISAM 7302 16/18 slot ETSIISAM 7330 FTTN 8/10 slot ETSIRemote expansion Module (FTTB 7356)

1 line board ,1 splitter board and/or 1 POTS board in a separate enclosure behaving as remote LT’s connecting to an 7330 FTTN host shelf.



University

Equipment practice - XD

eXtreme Density

> XD equipment• ALTS-T: ETSI shelf for line boards • ASPS-A: ETSI splitter shelf with backplane• ASPS-C: ETSI splitter shelf without backplane• ARAM-D: Mini shelf 7330 FTTN host (4LT-slots)• EREM-A: 7330 FTTN Remote expansion Module (1LT)


37

General architecture 7302 ISAM-XD

XD equipment practice

16 LT boards48 lines/LT

Each LT contains an IWF

separate splitter shelf

Aggregation (service hub) and control- & management function integrated on NT

1GE connectivity between NT and LT via backpanelSMAS card

System MAC address storage

ASAM-shelf

ASAM link

Control link

LT 1 LT 16

NT

Aggregation function

Control/Mgt function

(FE)

1 …16 GE1..3/4 GE/FE

SMAS

48 lines

NT I/O

4 External Ethernet links

1..4 GE/FE

3/4 External Ethernet links

ACU

ACU

SMA

S

Clock

Power

802.3port

802.3port

LT module LT module

> The slide above shows the 7302 ISAM’s XD system architecture.> The 7302 ISAM XD consists of a set of 16 subscriber line termination (LT) boards, 1 or 2

network termination (NT) boards, 1 network termination I/O board, 1 alarm control unit (ACU) board, all located in an eXtreme Density (XD) splitter-less shelf ALTS-T.

> The NT board contains an integrated aggregation function with a total switching capacity of 24Gbps which is commonly referred to as the service hub (SHUB).

> Actually there are two ethernet switches on the NT having a capacity of 12 Gbps each, which means the total switching capacity is 24 Gbps, corresponding with 16 GE ASAM links + 8 Ethernet links.

> Depending on the NT card type you will have 7 external Ethernet links + 1 control link or 8 external Ethernet links. In case of 8 external Ethernet links the connection of the SHUB with the control and management function is no longer done via ethernet. This way the ISAM has an additional network link (true e.g. for ECNT-C see later in this presentation)

> Whether a clock function (BITS) interface is present on the NT or not will also depend on the variant of NT card.

> The 7302 ISAM XD does not have a dedicated power unit (the interface point to the external DC power supply systems and provides power). On the shelf itself there are so called fast-on connectors for providing power supply coming from the top rack unit (TRU).The power signals BATA, BATB and BATRET are distributed via the backplane and feed the plug-in units and fan units installed.

> You do not find the TAU module on this drawing, although ISAM XD equipment practice provides this functionality. An RJ45 for test access (connection to TAU) is present on the NTI/O ( see later), but the TAU module itself is on a TAUS-card which physically needs to be inserted in the splitter-shelf.


38

General architecture 7330 ISAM FTTN host-XD

External Ethernet links

ASAM link

Control link

Aggregation function

Control/Mgt function

FE

GE1 ..4

GE/FE 1 .. 3

DSL lines

EXP links10 +2

NT

GE1 ..10+2

LT 1LT 4

Exp. link

Ext EthLinks2 + 2

GE1..2+2

GENC

OR

OR

ARAM-D => 4 LTs

Clock

PS

LT 1…

LT module

ACU

802.3port

3/4 External Ethernet links

TAU

Pow

er

PW

IOSM

AS

> The ARAM-D is a four-LT-slot shelf. It is used for the 7330 ISAM FTTN, and can be mounted horizontally or vertically.

> The PWIO card functions as a General Facilities Card (GFC). It provides connectivity and distribution for power feeds and external alarms. The PWIO card is integrated in the shelf.

• in the ARAM-D the GFC functionality is provided by the PWIO card • the SMAS functionality is implemented using a remote inventory prom located on the

PWIO (a few fields in this prom are reserved for the contents of the SMAS prom).> The ACU functionality is not on a separate card as in the ISAM XD equipment practice, but

integrated on the GENC card.


39

LT – line termination in 7302 ISAM-XD

LT

.

.

.

…

…PS

PS

PSTN7302ISAM-XD

LT BOARDS

APPLIQUE BOARDS

LT moduleLT

contains the LT-modulecontains the IWF

i.e. the LT is on the data forwarding path

transport functiondetermines type of card

provide connection to DSL users

the applique boards are …in a separate shelf,

maybe even in a separate rack

> For the data path, in the 7302 ISAM-XD , the main building blocks are the LT boards on which we can find the IWFs and the NT (see later) on which we can find the aggregation function. All the data that passes through the 7302 ISAM-XD will always pass through the NT.

> The 7302 ISAM-XD is equipped with a large number of line termination boards (LT). Different LTs exist for DSL access. Most of the LTs also need a paired applique boards. These applique boards can reside in an equipment placed in the same rack or in another location (see further in this document).

> In the 7302 ISAM-XD, each LT card is connected with the NT via the backpanel using a 1 GE electrical interface. This way the Alcatel 7302 ISAM-XD offers wire speed delivery of services towards each user through a non-blocking bandwidth of 1 Gigabit per slot.


40

LT – line termination in 7330 ISAM FTTN-XD

same functionality as in 7302

applique board in the same shelf

7330 ISAMFTTN-XD host

7330 FTTN-XD REM

…PS

LTexpansion link

.

.

.

PSTN

…PS

LT

…PS

LT

ASAM link

> The ARAM-D is shown as 7330 ISAM FTTN-XD host shelf.

> The LT boards in the 7330 units perform the same functionality as in the 7302.I.e terminating the physical layer and forwarding the data packets to the aggregation function.

> The 7330 ISAM FTTN host shelf perceives remote LT units as though they were installed locally on the host shelf itself, adding them to its total number of LT units.


41

NT – network termination in 7302 ISAM-XD

.

.

.

…

…PS

PS

PSTN

7302ISAM-XD

LT

3/4 FE/GE elec or GE optical

NT

SHUB

CTR

802.3port

Clock

LT

service hubthe main ethernet switchelectrical or optical Ethernet interfaces

runs control plane software and management software

management and control interfacesSW managementfault management configuration management DB management

clock functionality optional

> All the data that passes through the 7302 ISAM will always pass through the NT. It is the 24 Gbps Ethernet aggregation switching function, i.e. the service hub residing on the NT that is responsible for the data forwarding towards the Ethernet aggregation network.

> Another functionality of the NT-board is the control plane of the 7302 ISAM required e.g. for maintenance and operations, remote inventory information and shelf management. It provides management interfaces (LAN, CRAFT, RCRAFT) to the outside world and control interfaces towards the line termination (LT) boards and the network termination I/O.

> On the NT resides an interface and media conversion block which provides 3 or 4 (depending on NT card type) external Ethernet interfaces. These interfaces are primarily intended to be used as subtending and/or network links or for a directly connected user. In case optical interfaces are needed the media converter on the NT converts the electrical signal coming from the service hub into an optical signal.

> Whether a clock function (BITS) interface is present on the NT or not will depend on the type of NT card.

> NT redundancy is supported


42

NT – network termination in 7330 ISAM FTTN-XD

performs aggregation,management and control functions REM

Seen as one NE on 5523 AWS


7330 FTTN REM

…PS

LT

.

.

.

PSTN

…PS

LT

…PS

LT

NT

SHUB

CTR

802.3port

Clock

> The NT has the same functionality in the 7330 ISAM FTTN host shelf as in the 7302 ISAM. > The NT in the 7330 FTTN host shelf however, will also provide the different functionalities for

the remote units connected to the 7330 FTTN host shelf.


43

NT I/O – NT Input Output in 7302 ISAM-XD

provide additional external interfaces to the 7302 ISAM shelf.

interfaces with the NT via the backpanel

ethernet interface for management

interface for test access

one NT-I/O per ISAM system

Supports NT redundancy

LT

.

.

.

…

…PS

PS

PSTN

7302ISAM-XD

NT I/O

LT

NT

4 x elec or optical

802.3port

> The network termination Input/Output (NT I/O) board is an applique or interface card which interfaces – via the backplane – with the network termination (NT) board. It is required in case more than the available external interfaces on the NT board are required, or when different physical interfaces are required than the NT board can offer.

> On the 7302 ISAM-XD, the NT I/O can provide up to 4 additional interfaces > The NT I/O also provides:

- an outband management interface which currently cannot be used ( R3.2)- the interface for communication between the NT and the TAU module on the TAUS board of the XD splitter (SP) shelf


44

ACU – alarm Control unit in 7302 ISAM-XD

Craft Terminal

LT

.

.

.

…

…PS

PS

PSTN

7302 ISAM-XD

NT I/O LT

NT

4 x FE/GE elec or GE optical

ACU

ACU

collection of equipment alarms (fans, fuses, …)

customer external alarms

drive alarm lamps in TRU

connection to craft terminal

Ethernet interfacenot to be used for out-band management

one ACU/ISAM system

> For the 7302 ISAM-XD the alarm control module is placed on a specific board, the ACU (alarm Control unit) board.

> You need one ACU board in each 7302 ISAM-XD system. It takes care of the following functions:

• collect equipment alarms from rack and sends them to the NT. These alarms are FAN alarms, fuse alarms, power alarms, external customer definable alarms

• the ACU sends its alarms to the network termination board, which transfers these signals to the element management system (5523 AWS).

• allows to connect a craft terminal using an RS232 (ACU in main rack)• drive rack alarm lamps and provides visual alarm indications via LEDs

> The ACU handles input and output alarm information via a cable connection to the top rack unit (TRU):

• 20 input signals of which 10 are spare alarm inputs• 20 output signals for audible, visual and telemetry alarms

> The RJ-45 port on the AACU-C card is not available for use on the ISAM.


45


…PS

LT

expansion link

.

.

.

PSTN

…PS

LT

…PS

LT

ASAM link

2+ 2 optical

GENC

802.3port

TAU

802.3port

Craft Terminal ACU

NT

10 + 2 opticalITSC

GENC – Gigabit Ethernet Network Combiner in 7330 FTTN-XD

GENC houses802.3 port function

uplink and downlink (expansion)

ACU module TAU moduleITSC module (optional)

14 optical GE interfaces10 for expansion2 for uplinks 2 selectable (expansion or uplinks)

> The GENC card has 14 Gigabit Ethernet optical connectors. Two ports are dedicated for uplink connectivity to high-bandwidth IP services networks. The high-bandwidth IP services network can provide service for the xDSL subscribers and supports inband management of the 7330 ISAM FTTN-XD. Two more ports are configurable as either uplinks or as expansion ports (downlinks.) The GENC card has 10 expansion ports (downlinks) used to connect remote expansion units to the host shelf.

> The ACU module and TAU module are integrated on the GENC card as well, so besides providing 14 optical Gigabit Ethernet interfaces for uplink and downlink activity, the GENC card provides alarm and control support as well as support for MTA (Mechanical test access) based testing.

> It is the ACU-block in on the GENC-card that collect up to five external alarms, AC fail alarm, door alarm, fuse alarm and two fan fail alarms and sends them to the NT. The ACU-block sends its alarms to the NT board which transfers these signals to the element management system.

> The Test Access unit (TAU) module manages the switching of signals between the MTA ports (located on the PWIO) and subscriber lines (connected to appliques).

> Depending of the type of GENC card, the board can be equipped with an Integrated Test and Sealing Current (ITSC) module. The ITSC module is present as a daughter card of the GENC-F. The ITSC module is used to perform narrowband tests and provide sealing current on customer lines.


46

PWIO – Power Input/output

7330 ISAM XDFTTN host

…PS

LTexpansion link

.

.

.

PSTN

…PS

LT

…PS

LT

ASAM link

2+ 2 optical

GENC

TAUACU

NT

10 + 2 optical

Connectivity to ACU module: Collection of 5 customer external alarms

Craft terminal connectivity

alarm lamps on PWIO driven by ACU

Connectivity to TAU module

SMAS module

Power

Craft terminal

PWIOPower

SMAS

external test equipment

> The power module and the SMAS module in the 7330 ISAM FTTN-XD equipment practice can be found on the PWIO board.

> The main purpose of the PWIO is to provide power to the other units in the ARAM-D shelf, including the fan unit, and to provide connectivity for a wide range of inputs and outputs for the ARAM-D shelf. Most of the inputs and outputs are for the GENC.

> The main electrical power entry via redundant power feeds A and B happens on the PWIO. The PWIO processes electrical power output for other cards in the shelf and for the fan tray.

> External alarm, MTA, and craft terminal connections are made on the PWIO card However the ACU and the TAU unit itself is placed on the GENC board.


47

XD shelf types

ISAM 7302 - XDXD-LT ALTS-T

ETSI shelf for 16 line boards (48 lines)

XD-SP ASPS-AETSI splitter shelf with backplane for 16 splitter boards (48 lines)

XD-SP ASPS-C16 slot ETSI splitter shelf without backplane for 16 splitter boards (48 lines)

ISAM 7330 FTTN - XDXD-ARAM-D

mini-RAM shelf for 4 line boards (LT 48 lines)

REM-XDEREM-A

1XD-LT – 24 ports VDSL and 1 XD-PScan be connected to 7330 FTTN XD or FD


48

XD equipment practice

Single-shelf ASAM equipment practice XD-LT ETSI splitterless shelf

ALTS-T

Mounted in ISAM XD RACK (with TRU)LEDs

power:incoming from office battery

outgoing to shelves

Different rack configurationssplitterless deployment

Max 2 shelves per rack

2 ISAM systems per rack

Deployment with splitters integrated in rack1 shelf per rack

1 ISAM system per rack

TRU

SUB 2

SUB 1

splitterless deployment

> The ISAM equipment is a 2200mm tall dedicated rack system, which will include one of the following items, depending on the rack configuration: TRU, for power termination and distribution, splitter shelf and one or two splitterless shelves

> It is not possible to extend the ISAM with multiple shelves. One ISAM system is limited to 1shelf.

> For the ISAM shelf the ASAM XD-LT ETSI splitterless shelf is reused. > When the splitter-shelf is not integrated in the rack, one rack will be able to accomodate 2

ISAM systems (see drawing). splitterless deployment is used in case of splitters collocated with MDF or ‘splitterless’ deployment (CLEC).

> In case the splitters are integrated in the rack itself, one ISAM system can be accomodated within the rack.


49

XD rack configurations

splitterless deployment2 ISAM systems in 1 rack

TRU

splitterlessshelf 1

splitterlessshelf 2

dust filter

TRU

splitterlessshelf 1

dust filter

splitterless deployment1 ISAM systems in 1 rack

combo deploymentsplitters integrated in rack

TRU

splittershelf

splitterlessshelf

dust filter

> In the 7302 ISAM we use the XD modular rack equipment practice, i.e. the XD LT shelf and the splitter shelf is used.

> Three rack configurations are defined based on a standard ETSI rack (2200mm x 600mm x 300mm): 7302 ISAM rack with one LT shelf/splitterless shelf · one 7302 ISAM top rack unit (TRU): ATRU-Q· one 7302 ISAM XD splitterless shelf: ALTS-T· capacity of 768 xDSL lines, no splitters included

7302 ISAM rack with two LT shelves/splitterless shelves· one 7302 ISAM TRU: ATRU-Q· two 7302 ISAM XD splitterless shelves: ALTS-T· capacity of 1,536 xDSL lines, no splitters included

7302 ISAM rack with one splitter shelf and one LT shelf - “combo deployment”· one 7302 ISAM TRU· one 7302 ISAM XD splitter (SP) shelf: ASPS-A· one 7302 ISAM XD splitterless shelf: ALTS-A· capacity of 768 xDSL lines, splitters included

> Note: as each ISAM shelf is a stand-alone unit, there is in principle no extension between subsequent LT shelves in a rack, i.e. in order to grow the capacity of a node, combinations of A, B and C are possible knowing that each LT shelf will contain its own aggregation function and its own (external) interfaces.


50

Dust filter

ALTS-T – Line terminating shelf

ACU

LTLT LT LT LT LT LT LT LT LT LT LT LT LT LTNT

connectorarea

line boardarea

fan area

ISAM NT I/ON

T

AC

U

SMAS

Fan unit

PWR

LT

XDSL x 24

LT board

Back panel

LINE(1..24)

LINE(25..48)

FANdust filter

XDSL x 24

> This eXtreme Density ETSI shelf is a splitterless shelf with front access and backpanel architecture:

• NT slots: NT-A and NT-B (for NT redundancy). • NT I/O slot: to insert the NT I/O applique board.• ACU slot: for the ACU card – also used in ASAM. ACU performs alarm management of

the shelf• LT board area: 16 slot positions where LT cards are inserted (48 ports XDSL / 24 ports

SHDSL / 24 ports VDSL. In the future also 48 port SHDSL and VDSL cards will be supported)POLT and IVPS cards can also be inserted in the LT area (ISAM-V)

• 1 SMAS slot: for the SMAS (System Mac Address Storage) card, contains a remote inventory PROM that contains the MAC address(es) of the system

• 1 fan unit with or without dust filter.• The upper part of the shelf is referred to as the connector area (also see one of the

following slides).> 16 LT boards in one sub-rack and only one sub-rack in one ISAM system means that the max

number of xDSL lines that one ISAM system can support is 48*16=768 lines.> The ALTS-T has no splitter area. The splitter function can be done in the same rack or in

another rack (external splitters).


51

ALTS-T – connector area

remote CT

TRU

connectors for ADSL lines

extension

A B

previoussubrack * Not supported

next subrack* Not supported

PSTN

dial-in modem

PWR

AL - AR

BL - BR

RET

> The connector area contains:• TRU interface (50 way D-sub connector): to connect the subrack to the top rack unit.• extender interfaces (26 way connector, not used in ISAM)• interfaces for xDSL: 24 lines per connector, for the LT board immediately below.

The connectors used are 48 CHAMP connectors: via these connectors, the xDSL is brought into the shelf. One connector contains 24 pairs. Therefore we need 2 connectors for each board/slot position

• remote craft terminal interface (9 pin connector): will allow for remote management via a Craft Terminal through a permanent connection to the ASAM subsystem This can be a modem connection (see drawing)REMARK: the CT connector on the ACU board is DCE type and the CT connector mentioned here is of DTE type (modem = DCE) See also above

• power plugs


52

ALTS-T – PLID switches

splitter shelf (ASPS-A) does not have PLID jumpers.

in case a splitter shelf is equipped, the next splitterlessshelf (ALTS-T) in the rack is considered as “subrack 1”.

> The Physical Location Identification Switches (PLID) identify the position of the subrack/shelf in the ASAM. Depending on the shelf type (LT or combo) you have 2 or 3 per rack!

> The PLID jumpers are located on the ASAM back-plane behind the NT board (see slide).• SR-ID0 → SR-ID2: identifies the position of the subrack inside the rack. • R-ID0 → R-ID3: identifies the position of the rack within the DSLAM. • R-TYP0 → R-TYP3: identifies the type of DSLAM to the AWS.

> The ALTS-T subrack provides the PLID setting. This requires 21 PLID bits for extreme density equipment.

> PLID setting is done on the backplane.Nine bits (SLOT-IDxx, BP-TYP) are fixed by the backplane lay-out, the other twelve (SR-IDxx, R-IDxx, R-TYPxx and ACU-EN) are altered at the installation with jumpers.These jumpers are placed on the backplane in two columns between the ACU and the NTA slots.


53

ASPS-A – Splitter shelf

connectorarea

splitter b

oa

rda

rea

TAU

SLP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

connectorarea

PWR

ALM

PSPC board

Back panel

LINE (25..48)

LINE (1..24)

LINE25-48

POTS25-48

POTS1-24

LINE1-24

> The ALTS-T does not include any splitter functionality. In order to add splitters to the system, a separate splitter shelf needs to be added, either the Alcatel XD splitter shelves ASPS-A/ASPS-C or a 3rd party splitter shelf.

> In the case of ASPS-A the front access and backpanel architecture is maintained. The splitter subrack physically has three areas: one connector area, the splitter area and another connector area.

> connector areasThis area contains connectors for xDSL lines, top rack unit interface and power connections.

> 48 CHAMPS connectors are provided on the board as well as on the backpanel. Each with their own specific functionality (see further)

> splitter areaThe splitter area provides housing to the splitters and appliques.

> The XD splitter subrack can accommodate the following units:• up to 16 splitter boards (PSPS or PSUS):

– one per equipped LIM in the XD splitterless subrack.• one TAUS test access unit (Test-I/O applique) for metallic test access:

– The XD splitter subrack provides a Test/Spare bus on the backpanel for the support of 1:N LT redundancy and Metallic Test Access (MTA) to control the relays on the splitter boards.

> For VDSL, the splitter cards are VSPB-A, VSUB-A:• VSPB-A: 24 line passive POTS splitter• VSUB-A: 24 line passive ISDN splitter


54

ASPS-C – Splitter shelf

PSPC board

No backpanel

LINE (25..48)

LINE25-48

POTS25-48

POTS1-24

LINE1-24

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

LP

XDSL25-48

XDSL1-24

to ALTS-T shelf

> The ASPS-C subrack has no backpanel.• splitter card has interfaces on front plate for 2 x 24 XDSL, 2 x 24 POTS/ISDN and 2 x 24

subscriber lines• No backplane also means: no MTA support and no LT redundancy support.

> The subrack can house up to 16 splitter boards, one per equipped LIM in the XD-LT subrack. Each board is able to handle 48 lines (for XDSL LIMs).

> The subrack is mountable in the existing rack frame of an XD modular system (above the XD splitterless subrack) or in a standard 19” rack. By re-orienting the mounting brackets, the subrack can be mounted in frames).


55

Cabling – Internal splitters (1/2)

Subscriber line

PSTN

MDF

ADSLPOTS

ADSLPOTS

POTS

> Cabling of the ISAM is all via connectors either on the front panel of the splitter cards or on the backpanel of the splitter shelf and of the splitterless shelf.

> The figure shows how the MDF cabling is exactly done:incoming xDSL cabled at the stiffeners of the splitter cards (90 deg. connector)PSTN (e.g. POTS) part is split of through low pass filter (LPF) of the splitter board and connected, via a connector on the stiffener of the splitter board (90 deg. connector) and through the MDF to the PSTN networkxDSL signal leaves splitter board via back panel of splittershelf (180 deg. connector) and is connected to the line termination (LT) shelf

Evidently, in case of ASPS-C (which has no backpanel), the xDSL signal leaves via a connector on the stiffener of the splitter board (90 deg connector). On the slide, however, an ASPS-A splitter shelf is depictedat this splitterless (LT) shelf, the xDSL signal enters via a cable connected to the backpanel of the line termination (LT) shelf. (180 deg. connector)

> MDF – Main Distribution Frame


56

Cabling – Internal splitters (2/2)

ADSL lines1-24

ADSL lines25-48

ADSL25-48

POTS25-48

POTS1-24

ADSL1-24

splitter shelf cabling

connector area splitterless shelf

> On this slide an ASPS-A splitter shelf is depicted.


57

Cabling – External splitters

Subscriber line

POTS

MDF

External splitter device

Incumbent LEC

Competitive LEC

splitterless ISAM shelf + service hub

ADSLPOTSLPF

POTS

ADSLPOTSSPLIT

ADSLPOTS

ADSLPOTS

> In case external splitters are used, typically the incoming subscriber lines are connected at the MDF (Main Distribution Frame). From there they will be further connected towards an external PSTN POTS splitter rack and also towards the splitterless shelf.


58

ARAM-D based 7330 ISAM FTTN host

LP4

LT-1

LT-2

DSL25-48

GFC - PWIO PWR

POTS25-48

DSL1-24

POTS1-24

LP3

LP2

LP1

LT-3

LT-4NT-A

GENCNT-B

FANUNIT

> The ARAM-D (4-LT shelf) has the following front-accessible slots:> GFC slot: The General Facilities Card (GFC) is mounted on top of the shelf. In case of the

ARAM-D, the GFC provides power input and filtering, fan control, SMAS functionality, external alarm collection, a craft interface and Test Access Port connectors.In the case of the ARAM-D shelf the GFC functionality is provided by the PWIO board.

> In the slot beneath the GENC card needs to be inserted - alarm control and host expansion interface unit on the 7330 ISAM FTTN.

> NTA and NTB slot: These slots can be equipped with the standard NT board types on the 7330 ISAM FTTN host shelf. Additional NT I/O interfaces are located on the GENC card. The component side for these NT boards is UP. If the shelf is used as a slave, then a single slave expansion card must be inserted at the position of NT A. The NT B slot must be covered with a filler plate.

> LT1 through LT4 slots for LT units: The LT boards supported are e.g. EBLT-C, EBLT-E, EBLT-K (48 ports multi-DSL) and EVLT-A, EVLT-C (24 ports VDSL)

> LP1 through LP4 slots for appliques: The splitterboards supported are e.g. AVPC-A, HCUT-C, HLPC-H, HLPC-J and VPSC-D

> Fan slot: only the NTs, combo I/O card and LTs are cooled directly by the fan unit. The LPs and the GFC will only receive some limited cooling.The fan unit for ARAM-D exists out of a four-fan assembly, the AFAN-L.

> The ARAM-D shelf supports MTA.


59

ARAM-D vertical mounting

19” rack

Free space 2,5”/side

600mm rack

AR

AM

-D

Free space 125mm/side

ETSI

20” or 512mm

2200mmALTR-E 4

AR

AM

-D

19” rack

Free space 2,5”/side

600mm rack

AR

AM

-D

Free space 125mm/side

ETSI

20” or 512mm

2200mmALTR-E 4

AR

AM

-D

ARAM-D does not fit horizontally in an ETSI rack

adapters required for vertical mounting:

mounting kit


60

Other system components

top rack unit

Up to 2 XD LT shelves per rack

splitter shelf can be integratedin rack or separate (as shown)

ATRU-Q

• power provisioning• fuses for boards/fans

air flow

XD LT shelves

Fan unitsAFAN-H

• with or without dust filter

> The slide depicts a single rack holding 2 ISAMs (splitterless deployment). > So two ALTS-T shelves are housed in this rack. Each shelf holds a fan tray. This is an 8-fan

fan-unit with or without dust filter. Only one dust filter is needed per rack. > The top rack unit (TRU) is the unit providing the power interface between the office power

plant and the subracks. It is also the interface between the office alarm system and the rack equipment (including up to five customer defined external alarms) and displays the rack alarm conditions.

> Fan unit:One fan unit (AFAN-H) provides forced air cooling in the subrack. The fan unit is a field replaceable unit in the subrack fan area, it plugs directly into the backplane.

> There are two variants, one with dust filter and one without dust filter. The fan unit of the subrack in the lowest rack position must always contain a dust filter.


61

ATRU-Q – Top rack unit for ISAM 7302 XD

2 variants existstop rack unit for splitterless rack configuration

one or two LT subracks

top rack unit for rack configuration with splitter one LT subrack + one SP subrack

> The TRU is installed in the top position of the rack and is always cabled for two subracks,even if the configuration only requires one subrack . This is due to anticipated difficulties in adding cables after initial installation.

> The top rack unit terminates the feed(s) of the office battery branches A and B and distributes the power to up to two subracks via individual feeds and via circuit breakers.

> In an XD rack, the top rack unit (ATRU) distributes fused -48 Vdc or -60 Vdc power to all the subracks and fan units via two redundant branches. It interfaces between the DSL equipment and the Central Office alarm system.

> The ATRU-Q contains the following functional blocks:• Front panel with circuit breakers and alarm display• termination for external wiring• alarm and control boards with interface to internal ACU boards and external CO alarm

systems.


62

ECNT – Network termination board – XD (1/2)

service hub 24 Gbps line rate capacity16 port reserved for line cards & expansions1 (0) port to the control & mgt function7 (8) ports remaining for Ethernet user links, subtending links and network links

contains FLASH, RAM and ROM memoryinterfacing with management and control interfaces via backpaneltraffic management on NT

ECNT-AECNT-C

> ECNT-A NT board with integrated SHub. Provides three electrical FE, electrical GE or optical GE links on the front panel.

> ECNT-C NT board with integrated SHub. Provides four GE links on the front panel: three GE optical + one 10/100/1000Mbps optical/electrical (selectable)

> Besides providing network termination, the ECNT card performs Ethernet switching and control functions for the 7302 ISAM-XD and the 7330 ISAM FTTN-XD, as well as for any connected 7330 REM. It handles the xDSL, the shelf, and the switching data path.

> The ECNT card handles high-bandwidth IP services for xDSL subscribers by providing a 24 Gigabit Ethernet switching fabric (service hub). In the downstream direction, high-bandwidth IP services enter the network termination side of the 7302 ISAM or 7330 ISAM FTTN over connectivity at the ECNT card or through the NT I/O (7302 ISAM) or GENC card (7330 FTTN).

> The ECNT card switches the Ethernet IP traffic. The appropriate packets for each connectedxDSL subscriber are then forwarded over the backplane to the LT. In the upstream direction, the ECNT card receives Ethernet packets from the LTs over the backplane. The ECNT card either switches the Ethernet packets to the high-bandwidth IP services network or passes them to the NT I/O (7302 ISAM) or GENC (7330 ISAM FTTN) card.

> For expansion configurations with REMs, the NT on the 7330 FTTN host shelf switches traffic destined for remote subscribers to expansion ports on the GENC card via the shelf backplane. Traffic from remote subscribers is forwarded to the NT over the expansion links that connect to the GENC card on the host shelf.

> The ECNT card supports inband or outband management traffic received through its connectors. Local management (craft terminal) is supported by the ECNT card through craft connections on the AACU (7302 ISAM) and PWIO (7330 ISAM) cards. The NT on the FTTN host shelf is used to manage REMs which cannot behave as standalone units.


63

ECNT – network termination board – XD (2/2)

LEDs

Op

tica

litf

sEl

ect

rica

l it

fs port

0:

op

tica

l or

ele

ctri

cal

port

1,2

,3

op

tica

l

ECNT-A: 3 Ethernet interfaces2 variants: 100 Mb or 1Gb to each LT

RJ45 auto-sensing 10/100/1000Base-T

On board media conversion to GE optical

SFP optical modules required

ECNT-C: 4 Ethernet interfaces3 x 1Gbps SFP port

1 x 10/100/1000Mbps port electrical or 1Gbps optical

ECNT is used in:7302 ISAM XD

7330 ISAM FTTN XD

> ECNT-AHas three connectors for Gigabit Ethernet optical or electrical connections and three connectors for Ethernet electrical connections to a high-bandwidth IP services network.

The six connectors on ECNT-A are logically grouped into three pairs of one electrical connector and one optical connector each.

Only one of the two connectors in a logical pair can be active at any one time. For example, if you are using the optical connector in the first pair, then you cannot use the electrical connector of the pair until you disconnect the optical connector for the pair. If ECNT-A cards have been installed for NT redundancy, a total of six NT connectors are provided, with three being active.

> ECNT-C: • port 0 10/100/1000 Mbps electrical or optical• port 1,2,3 1GE optical only!

> SFP (Small Form factor Pluggable units) for NT & NT-I/O or GENC:optical modules exist for GE and FE. On one of the following slides some examples are given, but the list is not complete!


64

NT I/O – Network termination I/O board

provides 4 additional (external) Ethernet interfaces

ECNC-ARJ45 auto-sensing 10/100/1000Mbps

Or optical interfaces (1G only)

ECNC-BFE optical interfaces

SFP optical modules required

RJ45 for test access (connection to TAU)

> Different types of NT I/O cards exist currently:• ECNC-A: 4 x 10/100/1000 electrical interfaces or 4 x optical GE interfaces• ECNC-B: 4 x optical FE interfaces• (ECNC-C: 4 x optical GE for ISAM-V!)

> ECNC also has an ethernet port labeled for outband management. This port cannot be used!


65

SFP pluggable optical modules for NT & NT-I/O

Optical modules available for GE GE SX MM 850nm 550m (4dB)

GE LX SM 1310nm 10km (11dB)

GE EX SM 1310nm 40km

GE ZX SM 1550nm 80km (20dB)

List is not exhaustive – more available

Optical modules available for FEFE MM 850nm 550m (4dB)

FE SM 1310nm 10km (11dB)

List is not exhaustive

All modules do have an LC connector


66

CWDM SFP transceivers

Eight center wavelengths are available:

1471 nm,

1491 nm,

1511 nm,

1531 nm,

1551nm,

1571 nm,

1591 nm,

1611 nm.

CWDM SFP support

> CWDM technology uses an ITU standard 20nm spacing between the wavelengths, from 1310nm to 1610nm. With CWDM technology, since the wavelengths are relatively far apart (compared to DWDM), the transponders are generally not very expensive.

> The SFP-CW has the following features:> Coarse Wavelength Division Multiplexing (CWDM) transceivers. These transceivers are

available for eight different wavelengths.> Compliant with SFP Multi Source Agreement (MSA).> Compatible with IEEE 802.3z Gigabit Ethernet 1000Base-LX PMD specifications.> Digital diagnostic through serial interface.> Internal calibration for digital diagnostics.> Eye safe (Class 1 Laser Safety).> Duplex LC optical interface.> Loss Of Signal (LOS) output and TX Disable input.> Hot pluggable.


67

EBLT – MultiDSL line termination board

multi-ADSL line card48 ports per card

ADSL/ADSL2/READSL2/ADSL2+ line termination

POTS and ISDN line cards

GE interface towards NT

ATM cell <-> Ethernet packet conversionInter Working Function (IWF)

L2 and L3 cardsdifference in supported FW Models, QoS,...

EBLT-C-E (POTS, L3) EBLT-D-F (ISDN, L3)EBLT-J (POTS, L2)…

• EBLT-A/J L2 functionalities only (see forwarding models later on)


68

EVLT – VDSL line termination board

VDSL line card24 ports per card



EVLT-C (ETSI/POTS)EVLT-D (ETSI/ISDN)


69

SMLT – SHDSL line termination board - XD

SHDSL line cardsymmetric service:

bit rate from 192 kbps to 5696 kbps

in steps of 64 kbps

24 ports per card

EFM or ATM/IMA


SMLT-J

SMLT-K

> The SMLT-J:• Provides symmetric variable rate service to CPE.• Provides 24 symmetric ports at line rates from 192 kbit/s to 5696 kbit/s payload rate in

steps of 64 kbit/s.• Supports symmetric spectral profiles.• Supports two-wire mode, channel bonding (four-wire/six-wire/eight-wire mode) using

ATM for extended range and/or greater payload.• Supports multi-link (up to 8 links) grouping using Inverse Multiplexing over ATM (IMA) for

extended range and/or greater payload.• If IMA grouping is used, up to 24 groups with a maximum of eight links per group are

allowed.• Supports Packet Transfer Mode (PTM / EFM).• The SMLT-J units do not require an applique, the SHDSL interface lines are immediately

connected to the UTP cables via the subrack connectors. But, if required, an applique in an external splitter subrack can provide this connection.


70

PSPS – MultiDSL splitter board

48 lines per cardinserted in any of the 16 slots of splitter shelfseparates the ADSL and POTS/ISDNsignals upstream & combines the ADSL modem signals with POTS/ISDNsignals downstreamwith or without relays

supports connection to external test device for line measurement purposes

AA variant: outward line testingAB variant: full test access

ready to support N+1 LT redundancy

compatible with ADSL2+ (2.2 MHz)POTS and POTS+ISDN 2B1Q variant

ADSL25-48

POTS/ISDN25-48

POTS/ISDN1-24

ADSL1-24

XD-PSPC 48 linesPSPS-A (POTS)

PSPS-B (POTS)

PSPS-C (POTS)

PSUS-A (POTS + ISDN)

> The Pots splitter board will filter and combine ADSL and POTS/ISDN signals, thus allowing the concurrent use of POTS/ISDN and ADSL on the same UTP. Exists in a wide range of impedances (Real, Complex, …) Special version for ISDN due to different spectrum.

> The PSPS boards for the ISAM splitter shelf contains 48 LPFs or splitters so one board can serve up to 48 ADSL lines. Note that the ADLT splitter function is performed by a High-Pass Filter (HPF) on the ADLT board.

> The pots splitter boards are mounted in the applique slots of the ASPS-A. > PSUS-A: universal POTS/ISDN splitter version A (PSUS-A) - with N+1 redundancy and

limited test access. The PSUS-A:• Can be installed in the XD splitter shelf, installed in the Central Office (CO)• Contains 48 Low-Pass Filters (LPFs)• Separates the ADSL and the POTS/ISDN signals in the upstream direction• Supports ADSL, ADSL2+ and RE-ADSL (multi-ADSL).• Combines the ADSL signals with POTS / ISDN signals to the customer• Protects the POTS/ISDN against interference from signals generated by the network

termination (NT) unit or the (multi) ADSL line termination unit• Protects the receivers at both the subscriber and the Central Office from all POTS/ISDN

related signals• Allows connection to the Spare bus to provide N + 1 redundancy (not supported for this

release)• Allows connection to the Spare bus for limited test access (only this variant).• For ISDN only 2B1Q encoding is supported


71

VSPB – VDSL splitter board

24 lines per card

separates the VDSL and POTS/ISDNsignals upstream & combines the VDSL modem signals with POTS/ISDN signals downstream

POTS and POTS+ISDN 2B1Q variant

VSPB-A (POTS)

VSUB-A (POTS+ISDN)


72

Cut-through appliques – XD

CTAB-C

CTAB - C applique

LINE25-48

SHDSL25-48

SHDSL1-24

LINE1-24

CTAS - C applique

LINE25-48

LINE1-24

SHDSL1-24

SHDSL1-24

CTAS-C

> The cut-through applique forms an interface between the SHDSL line and the SHDSL LT board.

> CTAB-CThe CTAB-C splitter board is an SHDSL cut-through splitter board. The splitter board extends to XD 48 ports configuration (same layout as 24 ports LT) and cooperates with the SHDSL line termination circuitry present on the SHDSL line termination board.All interfaces to the SHDSL line termination board and the customer LINE are accessible via four 24-pair CHAMP connectors on the front stiffener of the board.The CTAB-C splitter board is installed in a Central Office environment (CO) and is mounted in an XD-LT splitter shelf, which can contain up to 16 splitter boards.The CTAB-C splitter board is a completely passive circuit.

> CTAS-Cprovides an interface between the SHDSL line connection and the SHDSL line terminating board (LT). The splitter board extends to XD 48 ports configuration and cooperates with the SHDSL line termination circuitry present on the SHDSL line termination board.


73

GENC: Gigabit Ethernet network Combiner – 7330 XD

GENC-EGENC-F (ITSC)

Generic Facility card for ARAM-Dpower distribution to other units in the shelf

Redundant power infeed

alarm and control support

MTA support

14 optical GE interfaces10 for expansion – Downlinks

2 for uplinks – towards network/subtended/end-user

2 selectable (expansion or uplinks)

> The GENC card is a general facility card and is a field-replaceable unit . Its main functionality is to provide connectivity and distribution for power feeds and external alarms

> The GENC is a plug-in unit that performs as stated above multiple functions in which also additional optical Gigabit Ethernet connectivity for the 7330 FTTN ISAM 4-LT-slot host shelf and remote units (REM).

> In total the GENC card provides 14 additional optical Gigabit Ethernet connectors to supplement the connectors provided on the ECNT card.

• On the GENC-E card faceplate, the first two optical ports (ports 4 and 5) are reserved for network connections (uplinks). Ports 6 and 7 are configurable as either uplinks or as expansion links (downlinks). The other 10 ports are expansion ports. It is possible to have up to 12 expansion links connected to remote expansion units for each host shelf since each shelf has one GENC card.

> ITSC: Integrated Test and Sealing Current• The ITSC module is present as a daughter card of the GENC-F. The ITSC module is

used to perform narrowband tests and provide sealing current on customer lines. The ITSC module replaces external test heads by providing:

– a reduced-suite of narrowband tests to the customer – the ability to apply sealing current for “dry” (non POTS) lines.


> On the board the SFP modules for Gigabit Ethernet optical connectivity are not delivered with the card but need to be ordered separately. Depending on the requirements of the operator. The Optical Gigabit Ethernet ports support standard Alcatel optical SFPs.

> On the board itself the status of the SFP modules are indicated by LEDs.> alarm and control support> The GENC collects external alarms received through five general alarm inputs connected

through the PWIO and passes them to the active NT unit. > The GENC controls the alarm LEDs on the PWIO. The GENC monitors the ACO switch on the

PWIO and controls the ACO LED (located on the PWIO-B).

ACO = alarm Cut Off : allows the audible alarms to be extinguished without affecting the visual alarms. The audible alarms can be toggled as enabled or disabled.

> The ACU module is integrated on the GENC card. In other words, it is the GENC that supports the craft port of the PWIO (used for connecting a craft terminal). The power status and status of the board itself as well as information on SFP’s are provided by LEDs on its faceplate.

MTA support> The GENC provides support for MTA-based testing and monitoring of one line at a time in the

4-LT-slot host shelf. MTA up and MTA down connections are made at the PWIO. The GENC provides a relay-based matrix and monitor circuitry to connect the test in and test out signals with the backplane for connection to the appropriate applique (the applique uses relays to connect to the appropriate line). It is the GENC that controls the TAP activity LED on the PWIO to indicate that MTA-based testing or monitoring is in progress.

> GENC-E : an alarm control and host expansion interface unit that performs multiple functions and provides additional optical GE connectivity and expansion links for the ARAM-D shelf.

> GENC-F : an alarm control and host expansion interface unit that performs multiple functions, including ITSC (integrated test and sealing current – implemented on a daughter board), and provides additional optical GE connectivity and expansion links for the ARAM-D shelf.


75

ACU – Alarm Control Unit in 7302 ISAM XD

inserted in the leftmost slot of the splitterless shelf (ALTS-T)

five LED’s to indicate different levels of fault conditionsACO/lamp test push button switch

craft interface 9-pin D-connector

Ethernet connection RJ-45 for out-band mgmt

cannot be used

one ACU/ISAM system

AACU-C

> Five LEDs to indicate fault conditions• Critical – red• Major – red• Minor – yellow• alarm local – red• ACO active – green

> Same ACU as for ASAM> RJ45 for outband management cannot be used – interfaces only to DSL boards not to the

Service Hub


76

PWIO in 7330 FTTN XD

PWIO-B

Installed in ARAM-D Field replaceable

Connectivity forPower

External alarms

MTA

Craft Terminal

> The PWIO board provides:• connectivity for external alarm, MTA, and craft terminal connections

– provides connectivity for five general-purpose alarm inputs– provides connectivity for AC failure alarm input– provides connectivity for MTA up and down– provides local connectivity for a craft terminal

• LEDs giving status information/control information– provides LEDs indicating alarm, fan, MTA, and power status– provides an alarm cut-off and a visual display of alarm cut-off

• SMAS functionality: the system MAC-address is stored in a remote inventory prom on the PWIO card.

> The following additional connectors are on the PWIO-B card, but they are not available for use:

• out-of-band management over Ethernet• fan and fuse• ETSI BITS

> Two variants of the card are available: one provides connectivity for six user-definable external alarm inputs and the other provides connectivity for three user-definable external alarm inputs and critical, major, and minor alarm outputs. Both variants provide an AC failure input, MTA connectivity, and a connection for a craft terminal.

> The PWIO board is seen as a integral part of the ARAM-D shelf and is normally delivered together with the shelf.


77

SMAS – System MAC Address Storage card – 7302 XD

SMAS

located on the XD splitterless shelf (ALTS-T) next to slot 16

contains only a remote inventory

contains the MAC address of the shelfNT public MAC address

without SMAS the ISAM doesn't come online SMAS is delivered with XD splitterless shelf

> On the SMAS-card the MAC-addresses of the NT/service hub that will be used for management, are stored. When the system boots, the service hub gets its MAC-address(es) from the SMAS-card. The 24 MAC-addresses for each port on the SHUB, are stored on the PROM of the SMAS-card.The reason why the MAC-addresses are stored on a separate card, that only contains a remote inventory of the ISAM shelf, is that if it would be on the NT and the NT would fail, the network might have trouble. The MAC-address will have been learned and if you replace the failing NT by another one, a new MAC-address would have to be learned. What if the old arp-entry first has to age? (e.g. a delay of 5 minutes). With the MAC-addresses on the SMAS card, any NT will get the same MAC-addresses after replacement, so the switches in the network don’t need to learn any new MAC-addresses from the NT’s.

> The SMAS card as depicted on the slide is only used in 7302 ISAM CO XD.• For 7330 FTTN XD, the SMAS functionality is integrated on the PWIO card.



University

Equipment practice - FD

Flexible Density


79

Migration towards FD (Flexible Density)

SD HD UD XD FD

ASAM Family

ISAM Family

Smooth migration

•288 lines/rack•…

•CO xDSL

•768 lines/rack•…

•CO xDSL

•1536 lines/rack•CO xDSL

•OSP xDSL


•OSP xDSL•FTTN xDSL•MDU xDSL

•voice


•OSP xDSL•FTTN xDSL•MDU xDSL

•voice incl. splitters•IMS ready voice gateway

•Distributed IVPS•VDSL2 48p

•Multi-ADSL 48p•P2p fiber Ethernet LT

> Main reason for going towards FD equipment practice is cost reduction!


80

ISAM FD shelf – Flexible Density Equipment Practice

FD slots are universal: can hold LTs as well as splitters

Higher densities can be obtained with FD shelves One rack may contain 3 FD shelves compared to only 2 XD shelves

Various FD splitters will be availablemultiDSL and VDSL2

POTS-only and universal POTS/ISDN

Mul

ti-AD

SL

VDSL

2

PO

TSIS

DN

fiber

(p2p

Eth

)

split

ters

Multiple flavors of line cards availableMultiple density variants (28p, 48p)

Single shelf for all deployments

•DSL•voice•fiber

> The following LTs will be supported starting from ISAM release 3.3:• 24p G.shdsl LT• 16p Ethernet LT (p2p fiber Ethernet)• 48p VDSL2 LT• 48p mDSL/VDSL splitters


81

General architecture 7302 ISAM-FD

new equipment practice – NEPNFXS-A

capacity = 16 + 2 line slotsNT-B/NTIO slots can be used as line slot

universal slot conceptshelf can accomodate any mix of xDSL LTs, splitters, fiber LTs, voice cards

aggregation (service hub) and control- & management function integrated on NT1GE connectivity between NT and LT via backpanel

Backplane ready to support evolution to higher densities

ACU & clock function integrated on NT boardSMAS functionality integrated on backpanel

7302 FD-shelf

ASAM link

Control link

NT

Aggregation function (SHUB)

1 …16/18 GE2 GE

1..6 GE2 External Ethernet links

Control/Mgtfunctions ACU Clock


LT16 18or SP16 18ormixed

SMAS

NTIO 802.3port

802.3port

Power

> The slide above shows the 7302 ISAM’s FD system architecture.> The universal slot concept in the FD equipment practice allows the 7302 ISAM-FD shelf to

accommodate line termination cards and splitter cards. Therefore the 7302 ISAM FD shelf (NSFX-A) can be configured as LT shelf, as splitter shelf or as a mixed shelf. A mixed shelf combines LT/splitter pairs, with front cabling to interconnect LT and splitter.

> The NFXS-A shelf is used for the 7302 ISAM-FD. The shelf has 16 universal slots, 2 NT slots and 1 NTIO slot. This way NT redundancy is supported. However the second NT slot and NTIO slot can also be used as universal slot, increasing the capacity to 18 slots.

> The NT board - as with the XD equipment practice - contains an integrated aggregation function with a total capacity of 24 Gbps which is commonly referred to as the service hub (SHUB). There are two ethernet switches on the NT having a capacity of 12 Gbps each, which means the total switching capacity is 24 Gbps, corresponding with 16 GE ASAM links + 8 extra Ethernet links.These extra Ethernet links can then be used as uplink, subtended links or directly connected end-user links.

> The NT cards for FD equipment practice can terminate 2 external Ethernet links. The NTIO is providing the connectivity to the outside world for the 6 additional links.

> In the case where the second NT slot and NTIO slot are used as universal slots, 2 of these 8 Ethernet links are used as ASAM-links leaving us with 6 uplinks available on the SHUB. As said before the NT in FD equipment provides connectivity to the outside world for two of these links. So in that case 4 uplinks will remain unused. (uptil R3.2)


> Clocking and alarm control unit functionality are also provided on the NT> Each LT card is connected with the NT (SHUB) via the backpanel using a

1 GE electrical interface (ASAM-links). The backplane of the FD however is ready to support evolution to higher densities and higher subscriber bandwidths.

> Powering and other general shelf functionality (e.g. visual alarm indicators) (= the power unit) is integrated in the 7302 ISAM FD shelf . This way the FD shelf can operate as a a stand-alone unit, allowing the operator to install the 7302 ISAM FD in any standard ETSI 2200 rack..

> You do not find the TAU module on this drawing, although ISAM FD equipment practice provides this functionality in LT mode. MTA is not supported in combo mode. An RJ45 for test access (connection to TAU) is present on the NTIO ( see later), but the TAU module itself is on a TAUS-card which physically needs to be inserted in the splitter-shelf.

> The SMAS functionality (Remote Inventory PROM) is placed in a socket which is plugged on the backplane.


83

General architecture 7330 ISAM FTTN host-FD

Same concept as 7302 ISAM FD

New equipment practice

NFXS-B

Capacity = 8 + 2 line slotsNT-B/NTIO slots can be used as line slot

Possiblity to have expansion linksnumber depends on NT I/O card and the ISAM release running:

NCNC-B (6 opt ext itf)

NCNC-C (12 opt ext itf)

NCNC-D (6 opt – 4 elec itf)

NCNC-E (14 opt ext itf)

7330 FD-shelf

ASAM link

Control link

NT

Aggregation function (SHUB)

1 …8/10GE

2 GE

1..x GE/FE

Control/MgtfunctionsACU

Clock

LT 8 10or SP 8 10or mixed

SMAS

NTIO 802.3port

802.3port

Power

802.3port

expansion links

1..x GE


External Ethernet links (configurable)

> The NFXS-B shelf is used for the 7330 ISAM FTTN-FD.The shelf has 8 universal slots, 2 NT slots and 1 NTIO slots. This way NT redundancy is supported. However the second NT slot and NTIO slot can also be used as universal slot, increasing the capacity to 10 slots.

> NT and LT cards used in 7302 ISAM FD are also used in the 7330 ISAM FTTN-FD. The functionality of the different boards is the same as in the 7302 ISAM-FD.

> The difference with the 7302 ISAM-FD is the number of LT-slots and the fact that the 7330 ISAM FTTN-FD can be equipped with an NTIO with 6 external interfaces (NCNC-B) as well as with an NTIO having 12 external interfaces (NCNC-C). Other NTIO cards have been released from ISAM R3.4. See later for more information.

> The number of expansion or ethernet uplinks has become configurable from ISAM R3.4 on.


84

LT – line termination in 7302 ISAM-FD

provide connection to DSL users

Contains the LT-moduleTransportation functiondetermines type of card

Contains the IWF i.e. the LT is on the data forwarding path

the applique boards can be …mixed with LTs in one shelf

in a separate shelf,

maybe even in a separate rack

LT

.

.

.

…

…PS

PS

PSTN7302 ISAM-FD

LT BOARDS

APPLIQUE BOARDS

LT moduleLT

> For the data path, in the 7302 ISAM-FD, the main building blocks are the LT boards on which we can find the IWFs and the NT on which we can find the aggregation function. All the data that passes through the 7302 ISAM will always pass through the NT.

> The 7302 ISAM-FD is equipped with a large number of line termination boards (LT). Different LTs exist for DSL access. Most of the LTs also need a paired applique boards. These applique boards can reside in a separate shelf or the same shelf.

> The 7302 subrack can be used in 2 modes. LT-mode, the FD subrack is equipped with LT boards only . The corresponding splitter cards must be placed in a splitter subrack which can be placed in the same rack or in a rack on another location. combo-mode, the FD subrack is equipped with LT boards and splitter boards. For each equipped LT board, the corresponding splitter is placed in the slot to the right of the LT board (see later)

> In the 7302, ISAM-FD, each LT card is connected with the NT via the backpanel using a GE electrical interface.The backplane of the FD however is ready to support evolution to higher densities and higher subscriber bandwidths.


85

LT – line termination in 7330 ISAM FTTN-FD

Same functionality as in 7302

Applique board in the same shelf

7330 ISAMFTTN-FD host

7356 FTTB REM

…PS

LTexpansion link

.

.

.

PSTN

…PS

LT

…PS

LT

ASAM link

> The NFXS-B is used as 7330 ISAM FTTN-FD host shelf.> The LT boards in the 7330 units perform the same functionality as in the 7302, i.e terminating

the physical layer and forwarding the data packets to the aggregation function.> The 7330 ISAM FTTN host shelf perceives remote LT units as though they were installed

locally on the host shelf itself, adding them to its total number of LT units.


86

NT – Network termination in 7302 ISAM-FD

runs control plane software and management software

management and control interfaces

SW management

fault management

configuration management

DB management

service hub

electrical or optical Ethernet interfaces

ACU functionality

Clock functionality: optional

.

.

.

…

…PS

PS

PSTN

7302ISAM-FD

LT

2 GE elec / optical

NT

SHUB

CTR

802.3port

Clock

LTCraft Terminal

ACU

> All the data that passes through the 7302 ISAM-FD will always pass through the NT. It is the 24 Gbps Ethernet aggregation switching function, i.e. the service hub residing on the NT that is responsible for the data forwarding towards the Ethernet aggregation network.

> Another functionality of the NT-board is the control plane of the 7302 ISAM required e.g. for maintenance and operations, remote inventory information and shelf management. It provides management interfaces (LAN, CRAFT, RCRAFT) to the outside world and control interfaces towards the line termination (LT) boards and the network termination I/O.

> On the NT resides an interface and media conversion block which provides 2 external Ethernet interfaces. One of the interfaces will certainly be used as network link. The remaining link can be used as subtending and/or network links. The media converter on the NT converts the electrical signal coming from the service hub into an optical signal.

> Whether a clock function (BITS) interface is present on the NT or not will depend on the type of NT card.

> NT redundancy is supported.> In the ISAM FD equipment practice the ACU module is integrated on the NT board as well. It

is the ACU-module on the NT board that collects up to five external alarms, AC fail alarm, door alarm, fuse alarm and two fan fail alarms and sends them to the NT. The ACU-module sends its alarms to the NT board which transfers these signals to the element management system.


87

NT – network termination in 7330 FTTN-FD

Performs aggregation,management and control functions REM

Seen as one NE on 5523 AWS


7356 FTTB REM

…PS

LT

.

.

.

PSTN

…PS

LT

…PS

LT

NT

SHUB

CTR

802.3port

Clock ACU

> The NT has the same functionality in the 7330 ISAM FTTN-FD host shelf as in the 7302 ISAM-FD.

> The NT in the 7330 FTTN host shelf however, will also provide the different functionalities for the remote expansion modules connected to the 7330 FTTN-FD host shelf.


88

NT I/O – NT Input Output in 7302 ISAM-FD

provide additional external interfaces to the 7302 ISAM shelf.


one NT-I/O per ISAM system

Supports NT redundancy

LT

.

.

.

…

…PS

PS

PSTN

7302ISAM-FD

NT I/O

LT

NT

6 x optical802.3port

> The network termination Input/Output (NT I/O) board is an applique or interface card which interfaces – via the backplane – with the network termination (NT) board. In the 7302 ISAM-FD it is required in case more than the available external interfaces on the NT board are required. These interfaces can be used as network links, directly connected user links or subtending links.

> The NT I/O for the 7302 ISAM-FD can provide up to 6 additional interfaces to the shelf.


89

NT I/O – NT Input Output in 7330 FTTN-FD

provide additional external interfaces to the 7330 FTTN

expansion links i.f.o card type


one NT-I/O per FTTN system


…PS

LT1… 12 expansion links

.

.

.

PSTN

…PS

LT

…PS

LT

ASAM link

6->14 optical

NT I/O

802.3port

7356 FTTB REM

> As in the 7302 ISAM-FD equipment the network termination Input/Output (NT I/O) board is anapplique or interface card providing extra external interfaces.

> In the 7330 ISAM FTTN-FD the extra interfaces can now be used as expansion links as well. However how many interfaces available and how many can be used as expansion links will depend on the type of NTIO board and software used


90

Shelf types – FD equipment practice

ISAM 7302 - FDFD -NFXS-A

ETSI shelf for 16/18 boards (x lines)universal slot concept allows any mix of xDSL LTs, splitters, fiber LTs,

voice cards

ISAM 7330 FTTN - FDFD-NFXS-B

Mini-RAM ETSI shelf for 8/10 boards (x lines)universal slot concept allows any mix of xDSL LTs, splitters, fiber LTs,

voice cards

7356 FTTB REM - FDFD-NFXR-A

can be connected to 7330 FTTN XD or FD.


91

7302 ISAM-FD equipment practice

FD shelf mounted in any standard ETSI rack.

3 FD 7302-shelves fit in ETSI rack of 2200mm heightFD also fits in

ISAM-XD rack ASAM UD rack

Self contained shelf concept.Stand-alone deployment with integrated power management & shelf alarmPower directly on the shelf.

TRU “Lite” functionality integrated in shelf

TRU optional in case of rack power feeding for multi-shelf rack

Different rack configurations

2200mm heigh STD ETSI-RACK

NO TRU

FD-7302-2

FD-7302-1

FD-7302-3

> The ISAM-FD equipment can be mounted in a standard ETSI rack, This is possible becausethe ISAM FD Shelves can operate as a stand-alone unit powering and other general shelf functionality (e.g. visual alarm indicators) (= the power unit) are integrated in the 7302 ISAM FD shelf.Therefor Integration into a rack with a top rack unit is not required, but it is possible.Integrated 7302 FD rack configurations (rack + subracks + evt. Cabling) are also offered. 7302 FD shelves can also be mounted in existing XD modular space improved rack and in the UD rack.

> The Reduced Height of the FD shelves allows to combine 3 FD shelves into a ETSI rack of 2200 mm height. This way higher densities can be obtained with FD shelves. One rack may contain 3 FD shelves compared to only 2 XD shelves


92

FD 7302 rack Configurations

NO TRU NO TRU NO TRU NO TRU NO TRU

FD-7302shelf

FD-7302shelf

FD-7302shelf

FD-7302shelf

FD-7302shelf

FD-7302shelf

XD MTA Readysplittershelf

FD-7302LT shelf

XD Passive

splittershelf

FD-7302LT shelf

> In a standard ETSI rack (2200mm x 600mm x 300mm) there are a couple of possible configurations that you can have with FD equipment practice. An overview of these configurations are given in the following slides. : 1) 1 rack with 1 FD subrack

• NFXS-A FD subrack2) 1 rack with 2 FD subracks

• 2 x NFXS-A FD subrack3) 1 rack rack with 3 FD subracks

• 3 x NFXS-A FD subrack]In these first 3 configurations, FD subracks can be configured as “LT shelf”, “mixed shelf” or “splitter shelf”.4)1 rack with XD MTA-ready (“Red”) splitter shelf and 1 FD subrack

• ASPS-A (ISAM XD-modular splitter subrack with Test Access)• NFXS-A FD subrack configured as “LT shelf”

5) 1 rack with XD Passive (“Blue”) splitter shelf and 1 FD subrack• ASPS-C (ISAM XD-modular splitter subrack without Test Access)• NFXS-A FD subrack cionfigured as “LT shelf”

> Bottom FD subrack is equipped with dust filter.> A configuration with 3 LT shelves may not be appropriate, since a lot of heat is produced. An

evaluation is needed on a case by case basis. It’s not a problem for mixed splitter/LT shelves.


93

7302 ISAM–FD shelf: NFXS-A

No connector area: direct front access cabling

2 NT slots + 1 NTIO slot

16 “LT/splitter” slots

Capacity = 16 + 2 line slotsNT-B/NTIO slots can be used as line slot

Max 864 lines/shelf

500 W x 600 H x 280 D

600

LT/splitter slots LT/splitter slots2 x NT + NTIO

FAN

> This ISAM 7302 16/18 slot FD ETSI shelf/subrack (NFXS-A) is a shelf with universal slot concept and reduced backpanel architecture. This is a high-dense subrack for central office and large cabinet applications, which fits in standard ETSI racks.

> Reduced backpanel architecture in the sense that the 7302 ISAM-FD shelf has no connector area for subscriber, xDSL and narrowband interfaces. External cabling is applied directly to front access connectors on the line termination boards. Initial multi-ADSL cards have 48-port density, but higher density cards can also be accommodated within the shelf (future)

> There can be maximum 18 LT boards (16 + 2) in one 7302 ISAM-FD sub-rack. Since one sub-rack is one ISAM system, the maximum number of xDSL lines that one ISAM FD system can support is 48*18=864 lines.


94

7302 ISAM–FD shelf: NFXS-A

Card cage area

DSL

LT board

Back panel

FANdust filter

LT LT LT LT LT LTLT LT LT LT LT LT LT LT LTLT

NTA

NTB

/LT

NTI

O/L

T

Power & connectorarea

PWRDust filter

Fan unit

fiber conduct

Fan area

fiber channel

fiber conduct

> The ISAM 7302 FD shelf is subdivided in following areas:• Card cage containing slots for NT, NTIO, LT and splitter boards.• Fiber conduct for NT and NTIO fibers• Fan unit area: the fan unit is provided with dust filter. The dust filter must be installed only

beneath the lowest fan tray in a configuration. The dust filter can be removed without plugging out the fan tray.

• Power and connection area: This area provides housing for connectors for the power supply, circuit breakers and rack lamps.

> The shelf has 19 vertical slots for pluggable boards.> In the center of the shelf, three slots are foreseen for NT-A, NTIO and NT-B. Other 16 slots

are universal slots. universal slots can accommodate LT board types, server board types and splitter board types. Hence, splitters can be mixed with LTs in a shelf or be deployed separately/externally. A mixed shelf combines LT/splitter pairs, with front cabling to interconnect LT and splitter.(see later in this presentation)

> The NTIO slot and the NT-B slot can also be assigned as universal slot. Such assignment turns the shelf into a 18-slot shelf. Note: A 17-slot configuration, where only NTIO slot or NT-B slot is assigned as universal slot, is currently not supported.

type


95

7302 ISAM-FD shelf – configurations LT shelves

XDSL cable management area

48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL 1

-48

connectorarea

BAT filersInletBlock

CBsLamps

connectorarea

PWR filtersPWRInletBlock

CBsLEDS

fiber management areaFan unit

BPA


48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL 1

-48

connectorarea


CBsLamps

connectorarea


CBsLEDS

fiber conduct areaFan unit

BPA

FD CO 16 slot LT shelf with NT redundancy

FD CO 18 slot LT shelf no NTIO / no NT redundancy

(e.g. HSI only application)


48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL 1-

48

connectorarea


CBsLamps

connectorarea


CBsLEDS

fibermanagement areaFan unit

BPA


48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL 1-

48

connectorarea


CBsLamps

connectorarea


CBsLEDS

fiber conduct areaFan unit

BPA

XDSL XDSL

> The 7302 ISAM-FD subrack can be used in different modes. You can have an LT-shelf, splitter shelf or mixed/combo-shelf.

• In LT mode, the FD subrack is – besides the NT and NTIO board, equipped with LT boards only . The corresponding splitter cards must be placed in a separate splitter subrack.

• splitter shelf: In that case only splitter boards are inserted in the LT-slots. No NT or NTIO boards needed. Also a fan unit is not required in this configuration.

• “mixed shelf”-combo configuration, pairs of splitter & DSL LT boards in the same FD shelf.

> On the slide you see the configuration for a 7302 ISAM-FD LT-shelf. • If NT redundancy is required, the FD subrack can be equipped with 16 LT boards • If neither NT redundancy nor extra external interfaces are required, the FD subrack can

be equipped with 18 LT boards. LT 17 and LT 18 are placed in the NT I/O and in the NTB slot respectively.


96

7302 ISAM FD shelf – configurations LT/splitter shelf

FD CO 16 slot shelf with NT redundancy

48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL

1-48

Connectorarea


CBsLamps

Connectorarea


CBsLEDS

Fiber management areaFan Unit

BPA

POTSLINE

XDSL

LT SP LT SP

48p-

LT

Fan unit

48p-

LTNT

NT

IO

TAUBITS

Craft

BITS

Craft

Mgt

SFP4

SFP1

SFP5

SFP6

SFP7

SFP8

SFP3

SFP2 SFP2

NT

Mgt

SFP1

AD

SL

1-48

Connectorarea


CBsLamps

Connectorarea


CBsLEDS

Fiber management areaFan Unit

BPA

POTSLINE

XDSL

LT SPLT SP LT SPLT SP

FD CO 18 slot shelf without NT redundancy

> When the 7302 ISAM-FD is used in a “mixed shelf”-combo configuration, pairs of splitter & DSL LT boards can be placed in the same shelf. For each equipped LT board, the corresponding splitter is placed in the in neighboring right slot of the LT board.

> On the slide you see the configuration for a 7302 ISAM-FD LT-shelf with redundancy. In that case the FD subrack can be equipped with 8 LT boards and 8 splitters.

If NT redundancy is not required, the FD subrack can be equipped with 9 LT boards and 9 splitters. LT 9 and splitter 9 are placed in the NT I/O and in the NTB slot respectively. (This configuration is shown on the right of the slide.)

> Splitters for the xDSL LIMs can be mounted next to (and to the right of) the corresponding LT. The connection between the LT and the correlating splitter is done via the front with a 48 pairs connector and cable.

> At the front of the splitter, there is the 48 pairs connector and cable towards the PSTN-exchange.

> In this configuration, there is no MTA on the splitters. MTA is not supported in combo mode


97

7330 ISAM FTTN– FD shelf: NFXS-B

Medium-sized DSLAM for CO or Cabinet2 NT slots + 1 NTIO slot

Remote expansion capabilities via NTIO

8 “LT/splitter” slotsCapacity = 8 + 2 line slots

NT-B/NTIO slots can be used as line slot Max 480 lines/shelf

Power and alarm functionality in GFC Card

Remote expansion capabilities via NTIO

No connector areadirect front access cabling

35

5 (

hori

zon

tal

mo

un

tin

g)

240 D x 445 W x 355 H

8 LT/splitter slots

2 NT + NTIO slot

GFC

> The 7330 ISAM FTTN-FD 8/10 slot FD ETSI shelf/subrack (NFXS-B) can be deployed at either the Central Office (CO), or in a remote location (which can be in an outside cabinet). The shelf can be mounted horizontally in 19” or ETSI rack .

> Like the 7302 ISAM-FD shelf (NFXS-A) the NFXS-B is a shelf with universal slot concept and reduced backpanel architecture.Reduced backpanel architecture in the sense that no connector area for subscriber, xDSL and narrowband interfaces are present on the backpanel. External cabling is applied directly to front access connectors on the line termination boards. Initial multi-ADSL cards have 48-port density, but higher density cards can also be accommodated within the shelf (future)

> Max 10 LT boards (8 + 2) in one 7330 FD sub-rack means that the maximum number of xDSL lines that one 7330 ISAM FD system can support now is 48*10=480 lines.

> The 7330 ISAM FTTN-FD has expansion capabilities to remote expansion modules. The 7330 ISAM FTTN-FD host shelf perceives remote LT units as though they were installed locally on the host shelf itself, adding them to its total number of LT units.


98

7330 ISAM FTTN–FD shelf: NFXS-B

LT

LT

LTLTLT

LTLT

LT

NT-ANTIO / LTNT-B / LT

Fan

un

it

Card cagearea

Power & connectorarea

Fan areaGFCPWR

> The 7330 FD subrack physically has three areas: • the card: card cage containing slots for NT, NTIO, LT and splitter boards.• the fan area: This area provides housing for a separate fan unit. Power unit and cable

connection area. This area houses connectors for the power supply, circuit breakers, subrack lamps and connectors for alarm cabling

> The shelf has 12 horizontal slots for pluggable boards.> A mandatory GFC card takes the bottom position of the shelf. The GFC card takes up

powering and other general shelf functionality (e.g. visual alarm indicators). > Above the slot for the GFC card, three slots are foreseen for NT-A, NTIO and

NT-B. The other 8 slots are universal slots. universal slots can accommodate LT board types, Server board types and splitter board types. Hence, splitters can be mixed with LTs in a shelf or be deployed separately/externally. A mixed shelf combines LT/splitter pairs, with front cabling to interconnect LT and splitter.(see later in this presentation)

> The NTIO slot and the NT-B slot can also be assigned as universal slot. Such assignment turns the shelf into a 10-slot shelf. Note: A 9-slot configuration, where only NTIO slot or NT-B slot is assigned as universal slot, is currently not supported.)

> Besides some exceptions you can state that in general the 7330 ISAM FTTN-FD uses the same boards as the CO-system (7302 ISAM-FD).

> slot numbering is bottom up (below legacy numbering is used):• LT 1/1/11• LT 1/1/10• LT 1/1/9• LT 1/1/8• LT 1/1/7• LT 1/1/6• LT 1/1/5• LT 1/1/4• NT-B• NTIO• NT-A


99

7330 ISAM FD shelf – configurations

Fan

unit

NT

NT IO TAU

BITS

Craf

t

BITS

Craf

t

Mgt

SFP

4

SFP

1

SFP

5

SFP

6

SFP

7

SFP

8

SFP

3

SFP

2S

FP2

NT Mgt

SFP

1

ADSL 1-48

fibe

rm

anag

emen

t ar

ea

Fan

unit

Fan

unit

48p-LT

NT

NT IO TAU

BITS

Craf

t

Mgt

SFP

4

SFP

1

SFP

5

SFP

6

SFP

7

SFP

8

SFP

3

SFP

2S

FP2

NT

SFP

1

ADSL 1

-

48

Fan

unit

Craf

t

Mgt

BITS

Fan

unit

SFP

2

NT SFP

1

ADSL 1-48

fibe

rm

anag

emen

t ar

ea

Fan

unit

Fan

unit

SFP

2

NT

SFP

1

ADSL 1

-

48

Fan

unit

Craf

t

Mgt

BITS

48p-LT

48p-LT 48p-LT

FD CO 8 slot LT shelf With NT redundancy

FD CO 10 slot LT shelf No NTIO/ No NT redundancy

(e.g. HSI only application)

LT8

LT10

> As the 7302 ISAM FD the 7330 FD subrack can be used in different modes. You can have an LT-shelf, splitter shelf or mixed/combo shelf.

• In LT mode, the FD subrack is – besides the NT and NTIO board, equipped with LT boards only . The corresponding splitter cards must be placed in a separate splittersubrack.

• splitter shelf: In that case only splitter boards are inserted in the LT-slots. No NT or NTIO boards needed. Also a fan unit is not required in this configuration.

• “mixed shelf”-combo configuration, pairs of splitter & DSL LT boards in the same FD shelf.

> The ISAM 7330 FD shelf can be configured as: “LT shelf”: configured with NT boards (at least one, second is optional) , NTIO boards (optional) and LT/server boards.

• If NT redundancy is required, the FD subrack can be equipped with 8 LT boards. (Left drawing)

• If NT redundancy is not required, the FD subrack can be equipped with 10 LT boards.LT 9 and LT 10 are placed in the NT I/O and in the NTB slot respectively; Right drawing


100

7330 ISAM FD shelf – configurations

Fan

unit

NT

TAU

BITS

Craf

t

SFP

4

SFP

1

SFP

5

SFP

6

SFP

7

SFP

8

SFP

3

SFP

2S

FP2

NT

Mgt

SFP

1 Fan

unit

Fan

unit

NT

NT IO TAU

BITS

Craf

t

Mgt

SFP

4

SFP

1

SFP

5

SFP

6

SFP

7

SFP

8

SFP

3

SFP

2S

FP2

NT

SFP

1

Fan

unit

Craf

t

Mgt

BITS

FD CO mixed shelf With NT redundancy

LTS

P

--

-

POTS

LIN

E

-

XDSL LT1

> In combo mode, the 7330 FD subrack is equipped with LT boards and splitter boards. For each equipped LT board, the corresponding splitter board is placed in the slot below the LT board. So, the LT card comes in top position and the splitter card in neighboring right position.

> For the 7330 ISAM FTTN-FD as LT-shelf: • If NT redundancy is required, the 7330 FD subrack can be equipped with 4 LT boards

and 4 splitter boards. • If NT redundancy and no extra external interfaces are required, the 7330 FD subrack can

be equipped with 5 LT boards and 5 splitter boards. LT 5 and splitter 5 are placed in the NT I/O and in the NTB


101

NANT - Combined NT unit

service hub 24 Gbps line rate capacity

Supports i.f.o setup/configurationUp to18 LT cards

Up to 8 ports for Ethernet user links, subtending links and network links

Up to 12 ports for expansion links

i.f.o available links on NTIO board

contains FLASH, RAM and ROM memory

interfacing with management and control interfaces via backpanel

traffic management on NT

ACU module integrated on NT

NANT-A

> At this stage the only NANT card existing is the NANT-A. (>R3.1). Two variants exist: with or witouth Bits interface.

> the NANT card performs Ethernet switching and control functions for the 7302 and the 733-ISAM FTTN-FD equipment, as well as for any connected remote expansion units. It handles the xDSL, the shelf, and the switching data path.The SHUB is integrated on the NANT board.

> The NANT board can be placed in the 7302 ISAM equipment as well as in the 7330 ISAM FTTN-FD equipment. The number of LT cards, external ethernet interfaces and/or expansion links will depend in which type of shelf the card is inserted.

> The NANT card handles high-bandwidth IP services for xDSL subscribers by providing a 24 Gigabit Ethernet switching fabric. In the downstream direction, high-bandwidth IP services enter the network termination side of the 7302 ISAM-FD or 7330 ISAM FTTN-FD over optical or electrical connectivity at the NANT card or through optical connectivity at the NT I/O card.

> The NANT card switches the Ethernet IP traffic. The appropriate packets for each connectedxDSL subscriber are then forwarded over the backplane by an LT unit. In the upstream direction, the NANT card receives Ethernet packets from the LT units over the backplane. The NANT card either switches the Ethernet packets to the high-bandwidth IP services network or passes them to the NT I/O card for transmission to the high-bandwidth IP services network.

> For expansion configurations with remote expansion units, the NT unit on the 7330 ISAM FTTN-FD host shelf switches traffic destined for remote subscribers to expansion ports on the NT I/O card via the shelf backplane. Traffic from remote subscribers is forwarded to the NT unit over the expansion links that connect to the NT I/O card on the host shelf.


102

NANT-A - Combined NT unit version A

NANT used in:7302 ISAM FD

7330 ISAM FTTN FD

1 Craft interface (RJ45)

1 BITS interface (RJ45) Availability I.f.o variant

1 100BaseT outband Mgt interfaceNot used at the moment

2 ports for user/network/subtending links

1 GE Optical SFP and

1 switchable GE Optical SFP/RJ-45

RJ45 BITS (AB variant only)

RJ45 Craft

RJ45 Outband Managemen (LOM)

RJ45 Uplink 1

SFP Uplink 1

SFP Uplink 2

switchable

> The NANT card supports inband management traffic received through its connectors. The ACU module and the craft connection is found on the NANT supporting local management this way. The NT unit on the host shelf is used to manage remote expansion units.

> The NANT provides network two GE links on the front panel.These interfaces are primarily intended to be used as subtending and/or network links. One port always need to be used as a 1 GE optical port, this is a fixed 1000BASE-X port (SFP only). The other interface is a combo-port. Meaning that or the optical interface can be used or the electrical 10/100/1000 BASE-T Port (RJ45 connector)

> 3 management interfaces are available via the front panel:• BITS interface (RJ45 connector)• Craft management interface (RJ45 connector)• Ethernet management interface (RJ45 connector).

At this point (R3.3) this management interface can not be used > The Craft wiring is not the same as in ASAM or ISAM ACU-board

The Craft Wiring on ISAM Flexible Density is the following5 4 3 2 1

----------------\ o o o o o /\ o o o o /---------9 8 7 6

1=orange 2=green 3=yellow4=black 5=red 6=n.c.7=n.c. 8=brown 9=blue


103

NCNC - NT I/O Applique version B & version C

6 optical GE Eth interfaces to the active NT board.

serial TAUS interface to the TAU board.

Environment Monitoring interface to communicate with a monitor box over a RS-232 link.


uplinks to the network or connecting Remote Expansion Modules (REMs)

NCNC-B NCNC-C

> In general, the NCNC-B-C card is a NT I/O applique which interfaces with the NT board. It provides additional GE interfaces to the FD subrack. (>R3.2)

> The NCNC-B serves as an NT I/O applique for the 7302 ISAM FD and 7330 FTTN ISAM FD.It provides 6 slots for up to 6 SFP GE interface modules which are external to the NCNC-B board. In case the NCNC-B is mounted in a 7302 ISAM FD shelf the NCNC-B is providing additional uplinks to the network, subtending links or directly connected end-user links. When mounted in a 7330 ISAM FTTN FD shelf however, these links can also be used to connect Remote expansion Modules (REMs) to the FD subrack. The 6 links of the NCNC-B can be used as expansion links. Support of # of expansion links will depend on Release.

The NCNC-B supports Metallic Test Access (MTA) by providing a serial TAUS interface to the TAU module, providing communication between the 7302 ISAM NT and the Test Access unit (TAU) of the splitter shelf. As stated before, when the ISAM FD shelf is used as combo shelf, MTA is not supported.

> The NCNC-C serves as an NT I/O applique for 7330 FTTN ISAM FD only and provides 12 slots for up to 12 SFP GE interface modules which are external to the NCNC-C board. These links can be used as network-, subtending-, directly connected end-user and/or expansion links.Max 6 links of the NCNC-C can be used as uplinks. The 12 links can be used as expansion links. However, the support of # of expansion links will depend on Release.No MTA nor Environment Monitoring Interface is provided via the NCNC-C.


104

NCNC - NT I/O Applique version D & version E

6 optical and 4 electrical GE Eth interfaces to the active NT board.

serial TAUS interface to the TAU board.

2 serial MTA interfaces.Environment Monitoring

interface to communicate with a monitor box over a RS-232 link.

NCNC-D NCNC-E


uplinks to the network or connecting Remote Expansion Modules (REMs)

> In general, the NCNC-D-E card is a NT I/O applique which interfaces with the NT board. It provides additional GE interfaces to the FD subrack. (>R3.4)

> The GE optical Network Termination (NT) Input/Output (I/O) Applique version D is part of the 7302 Intelligent Services Access Manager (7302 ISAM) and 7330 Fiber To The Node Intelligent Services Access Manager (7330 FTTN ISAM).

• NCNC-D has six optical and four electrical Ethernet interfaces to implement up to six Ethernet traffic media interfaces. Four of them can be multiplexed with 100BASE-FX/1000BASE-X and 10/100/1000BASE-T interfaces, and the remaining two are 1000BASE-X interfaces.

• Provides Equipment Protection Switching (EPS) in case of failure of the active NT in a redundant NT pair configuration.

• Supports integrated TAUS to provide Metallic Test Access (MTA) in FD LT shelf• NCNC-D has an interface to separate TAUS (in combination with a splitter shelf

supporting MTA).

> The GE optical Network Termination (NT) Input/Output (I/O) Applique version E which is part of the 7330 Fiber To The Node Intelligent Services Access Manager (7330 FTTN ISAM).

• NCNC-E has 14 GE interfaces via SFP optical modules.• Provides Equipment Protection Switching (EPS) in case of failure of the active NT in a

redundant NT pair configuration.


105

7330 FD NTIO use from ISAM R3.4 on

From ISAM R3.4 all ports on the NTIO type B & D are configurable in a 7330

Expansion link (downlink)

Ethernet link (uplink)LT 1 - 8

SFP-2

SFP-3

SFP-5

SFP-4

SFP-6

SFP-7

NT

SFP-0 SFP-1

up up

NCNC-B/D (6 SFP’s)2

3

4

5

6

7

10

LANX(Logical Ports)

24 23 20

19

18

17

16

15

14

13

12

11

10

9

22

21

NANT-A (2 SFP’s)

1 – 8

(down)

up/down

up/down

up/down

up/down

up/down

up/down

unused

21

22

> The NCNC-B & D can be deployed in the 7302 & 7330 FD ISAM. When deployed in a 7302 ISAM all links are uplinks (not reconfigurable)

> The white numbers are as we see them in the AWS view of the NT board. The black numbers are as wee see them on the card faceplate.

> Consult chapter 3FL00324 part C on how to configure the direction of these SFPs.


106

7330 FD NTIO use from ISAM R3.4 on

LT 1 - 8

SFP-2

SFP-3

SFP-5

SFP-4

SFP-6

SFP-7

SFP-8

SFP-10

SFP-9

SFP-11

SFP-12

SFP-13

NT

SFP-0 SFP-1

up up

NCNC-C (12 SFP’s)2

3

4

5

6

7

8

9

10

11

12

13

10

LANX(Logical Ports)

24 23 20

19

18

17

16

15

14

13

12

11

10

9

22

21

NANT-A (2 SFP’s)

1 – 8

(down)

up/down

up/down

up/down

up/down

down

down

down

down

down

down

up/down

up/down

unused

LT 1 - 8

SFP-2

SFP-3

SFP-5

SFP-4

SFP-6

SFP-7

SFP-8

SFP-10

SFP-9

SFP-11

SFP-12

SFP-14

SFP-13

SFP-15

NT

SFP-0 SFP-1

up up

NCNC-E (14 SFP’s)2

3

4

5

6

7

8

9

10

11

12

13

14

15

10

LANX(Logical Ports)

24 23 20

19

18

17

16

15

14

13

12

11

10

9

22

21

NANT-A (2 SFP’s)

1 – 8

(down)

up

up

up/down

up/down

up/down

up/down

down

down

down

down

down

down

up/down

up/down

From ISAM R3.4, 6 ports on the NTIO type C & E are configurableExpansion link (downlink)

Ethernet link (uplink)

21

22

21

22

> The NCNC-C & NCNC-E can only be deployed in the 7330 FD.> The white numbers are as we see them in the AWS view of the NT board. The black numbers

are as wee see them on the card faceplate.

> Consult chapter 3FL00324 part C on how to configure the direction of these SFPs.


107

NALT – MultiDSL Line Termination Unit

multi-ADSL line card48 ports per cardADSL, ADSL2, ADSL2+, READSL and Annex MPOTS and ISDN line cards

Front access connector on the LT board. GE interface towards NTATM cell <-> Ethernet packet conversion

Inter Working Function (IWF)

L2 and L3 cardsdifference in supported FW Models, QoS,...NALT-B (POTS, L2, 48 ports)

NALT-C (POTS, L3, 48 ports)NALT-D (ISDN, L3, 48 ports)…

> NALT-B L2 functionalities only (see forwarding models later on)> External cabling is applied directly to Front Access connectors on the line termination boards.


108

NSLT – SHDSL Line Termination unit

SHDSL line cardsymmetric service:

bit rate from 192 kbps to 5696 kbps

in steps of 64 kbps

24 ports per card

EFM or ATM/IMA


NSLT-A 24 SHDSL

> Provides symmetric variable rate service to Customer Premises Equipment (CPE).> Provides 24 Symmetric High-Bitrate Digital Subscriber Line (SHDSL) ports at line rates from

192 kbit/s to 5.696 Mbit/s payload rate in steps of 64 kbit/s.> Supports both symmetric spectral profiles.> Provides 8 kHz Network Timing Reference (NTR) clock to CPE for timing synchronization.> Supports two-wire mode, channel bonding (four-wire/six-wire/eight-wire mode) using ATM for

extended range and/or greater payload.> Supports multi-link (up to 8 links) grouping using Inverse Multiplexing over ATM (IMA) for

extended range and/or greater payload.> If IMA grouping is used, up to 24 groups are allowed.> Supports Packet Transfer Mode (PTM).> Can be installed in any of the Line Termination (LT) slots of the line termination area of the

subrack or of the outdoor cabinet.> Can be mixed with xDSL Line Termination (xDSL LT) boards in the same subrack or in the

same outdoor cabinet.


109

NVLT – VDSL(2) Line Termination unit

VDSL line card24 or 48 ports per card


Support VDSL(2) and ADSL(2+)


NVLT-A 24 VDSL(2) POTS

NVLT-B 24 VDSL(2) ISDN

NVLT-C 48 VDSL(2)-ADSL(2+) POTS

NVLT-D 48 VDSL(2)-ADSL(2+) ISDN


110

NELT – Ethernet Line Termination Unit

16 ports optical Fast EthernetP2P optical Ethernet CPE

100 Mb/s over 10 km with p2p single-mode fiber

Full ISAM Service IntelligenceSupports L3 Interworking Forwarding (IWF) engine.

Full feature parity with DSL line cards for mixed deployments

NELT-A 16 FE Opt

> NELT-A card is intended for the following applications:• P2P FTTU applications. A dedicated fiber from the ISAM to each user. This can be both

for residential applications (FTTH) as well as for SME/SOHO applications. For this application the port density is typically as large as possible, and this to minimize the CO cost per user. The optical transceiver technology requirement is usually FE (e.g. 100Base-BX10) as this suffices the BW needs and is a bit more cost effective than GE transceivers.

• Fixed Mobile Convergence application. In this application a number of wireless base stations can be aggregated on the ISAM rather than a dedicated mobile aggregation node. This is particularly of interest for operators who already have ISAM deployed for DSL-based services, as they only have to add this Ethernet LT card rather than to install a dedicated node for this application, thereby saving a lot of CAPEX and OPEX costs. The considered development of WiMAX controller functionality on ISAM also has to be seen in this context. Prime interest is the support for aggregation of Wimax base stations (Evolium 9100 in particular), but in principle 3G backhaul could also be foreseen. The optical link between the base station and the ISAM is typically FE, as the total BW aggregated per Wimax base station is 50 Mbps at most.


111

LT – Applique Cards

NPSP-A MII Passive POTS Splitter without MTA

NPSP-B ETSI Passive 48 port POTS splitter

NPSP-C TBD

NPSP-D ETSI Passive 48 port POTS splitter

NVSP-A Passive 24-port VDSL2 over POTS Splitter Version A

NVSP-B Passive 48 port POTS VDSL splitter

NVSU-A Passive 48-port VDSL2 over POTS/ISDN Universal 2B1Q Splitter

NVSU-B Passive 48-port VDSL2 over POTS/ISDN Universal 4B3T Splitter

Passive Splitter cards have no backplane connectors, NOT detectable by the ISAM

> MII : Ministry of Information Industry ADSL/ ADSL2+ application, optimized for the MII China impedance

> NPSP-A• Passive POTS splitter. ADSL2+ compatible.• Optimised for the MII China impedance• Only frontpanel connectors, no backplane

> NPSP-B• Idem NPSP-A, but optimised for the complex impedance terminations as requested in

ETSI TR 1010 728 (TBR21 impedance, TBR38 impedance, high frequency termination and the high pass load).

> NPSP-C• TBD

> NPSP-D• This POTS splitter meets the same electrical requirements as the currently deployed

NPSP-B and is also compliant with the standard The only deviation the NPSP-B has with the standard is that the ADSL BAND Isolation requirement is 55dB, I.e. Telstra RCIT0004 compliant


112

GFC and fan for 7330 FD

Power Terminals(BAT-A, BAT-B, BAT-RET)

40 A Circuit Breakers(BAT-A, BAT-B)

Battery Available LED

Shelf Alarm Status LEDOffice AlarmsConnectors

Rack LampsConnectors

Door OpenConnector

Power Terminals(BAT-A, BAT-B, BAT-RET)

40 A Circuit Breakers(BAT-A, BAT-B)

Battery Available LED

Shelf Alarm Status LEDOffice AlarmsConnectors

Rack LampsConnectors

Door OpenConnector

GFC unit for 7330 ISAM-FD

Fan unit for 7330 ISAM-FD

EMA-NGFC-A

EMA-EFCU-D

> GFC board for 7330 ISAM-FD: NGFC-A

> The EMA-NGFC-A is the power interface point of the FD7330 rack. It is also the interface for alarm system between outside(use defined )and NT .

> The EMA-NGFC-A (3FE-29191-AAAA) is at the bottom of 7330 ISAM system. It’s a half-closed box, Power filter module, circuit breaker, PBA-NGFC-A are all assembled in the box. EMA-NGFC-A can be inserted and pulled out of the back panel directly.

> The GFC provides the following functions :• Main electrical power entry: Provisioning for the connection of the external input power

feeders (branch A and branch B feeders) and distribution of these to all slots (for 8 LTs, 2NTs and 1NTIO ) and a FAN unit.

> Fan for 7330 ISAM-FD - EMA-EFCU-DThe fan plug in unit is designed for forced air cooling in 7330 ISAM equipment practice and is integrated within the 7330 ISAM shelf. It contains 6 wide range fans and alarm interface board and can be hot inserted.

The Fan unit provides an alarm indication towards the NT in case of failure. One alarm LED is present on the front panel of the Fan unit, to provide a visual indication of fan failure conditions.


113

AFAN-H – ADSL Fan Unit

Fan unit for 7302 ISAM FD

AFAN-H• with or without dust filter

> Fan unit in 7302 ISAM FDThe Fan unit used in the 7302 FD shelf is a new variant of the AFAN-H Fan unit, which is used in the 7302 XD LT shelf and fully compatible with ETSI shelf (600mmx300mm).

> The AFAN-H contains eight temperature controlled variable speed fans to cool the plugin boards in the ISAM subrack assembly. The fans have a local temperature sensor, which monitors the local ambient temperature of the fan and defines the fan speed as a function of this temperature.

> The AFAN-H must be in the fan area of the subrack. Fan power and interface connection are provided via two backplane connectors, type 15-pin male Sub-D. When there is a malfunction of a fan blower, the Alarm LED will turn red. Under normal operating conditions, this LED is turned off.

> The Fan unit is provided with or without dust filter. The dust filter must be installed only beneath the lowest fan tray in a configuration. The dust filter can be removed without plugging out the fan tray.


114

Power unit for 7302 FD

Power Filters – 60A(A/B/RET)

BAT A / BAT B Circuit Breakers (60A)

Splitter Shelf Circuit Breakers A/B

(4A)BAT ABAT B

BATRETpower terminal blocks

(35mm2 cable termination)

Lamps•Bat-Available (A/B)•Alarm

Power Filters – 60A(A/B/RET)

BAT A / BAT B Circuit Breakers (60A)

Splitter Shelf Circuit Breakers A/B

(4A)BAT ABAT B

BATRETpower terminal blocks

(35mm2 cable termination)

Lamps•Bat-Available (A/B)•Alarm

Power unit for 7302 ISAM FD

EMA-POWER UNIT

> The 7302 FD subrack is designed to be used as stand-alone equipment. A top rack unit (TRU) is not required, as (shelf level) power inlet, distribution and alarming functions are integrated in the Power unit of the shelf.

> The Power and connection area is located at the bottom of the subrack it consists out of a Power unit and some miscellaneous connectors (like Office alarms connector).

> The power unit provides housing for power inlet terminals, power filters, circuit breakers and visual alarm indicators (Lamps).



University

7356 ISAM FTTB REM

Remote Extension Module for XD and FD FTTN ISAM

> FTTB – Fiber To The Building • A technique of subscribers' distribution using optical fibers, in which the optical network

terminations are located at the cable entrance into the building, usually in the basement. > FTTN – Fiber To The Node

• Combined fiber and copper access system in which fiber extends towards remote nodes in the network so that the remaining loop over copper is reduced in length and brought in line with the need for higher bandwidth.


116

General architecture 7356 ISAM FTTB REM-FD

Is a flexible mechanical enclosure in an environmentally hardened enclosure (~450mm wide, ~110 mm high, ~265 mm deep).

Allows to equip any Flexible Density board

Connects to the 7330 FTTN ISAM host (ARAM-D and 7330 FD).

Up to 12 REMs can be connected to the 7330 FTTN ISAM.

Contains two 1 Gbit Ethernet interfaces (REM-FD slaved to the host, 1 SFP per LT).

An extra slot position is available for the future support of the voice application (NPOT-A in combination with the NALT-C).

DSL lines

Exp link

PS

LT

Pow

er

LT module

> Has a replaceable AC/DC or DC/DC convertor and FAN-unit (and optional dustfilter).> Provides for support of 5 external alarms inputs and 2 outputs (for e.g. visual and/or audible

indicators).> Within the scope of R3.4, following boards are supported:

• 48p VDSL2 (NVLT-D) with the corresponding 4B3T universal splitter• 48p VDSL2 (NVLT-C) with the corresponding POTS splitter (3rd order)


117

7356 ISAM FTTB REM implementation

EthernetSwitch

Central Office

EthernetSwitch

7330 FD host

Small Distribution area

7342

7302

7330 XD host

Large-Medium Distribution area

7356 FTTB REM

7356 FTTB REM

> 7356 ISAM FTTB REM Remote Expansion Module for use in locations: basement, street cabinets, hall


118

7356 REM customer deployment

TDM

Internet

Class5(POTS/ISDN switching

exchange

COSW

7330 Host

7356 REM

SAI(Analog Distribution Frame)

GigE Fiber

ISDN/POTS

24 or 48xVDSL or Multi-DSL

+ ISDN/POTS


119

Overview HW setup REM-FD

DC

VDSL ADSL2+

AC

FAN

NPSU-A (ISDN Splitter - ETSI)NALT-D

Not UsedDC Controller Board

FAN

NPSP-B (POTS Splitter - ETSI)NALT-C

NELTDC Controller Board

FAN

NPSP-DNALT-CNPOT-A

DC Controller Board

FANNot Used

DC Controller Board

FAN

NVSU-B (48xVDSL2 ISDN Splitter)NVLT-D

Not UsedDC Controller Board

NVLT-CNVSP-B (48x VDSL2 POTS Splitter)

FAN

NPSP-B (POTS Splitter - ETSI)NALT-C

AC Controller BoardFAN

NVSU-A/B (48xVDSL2 ISDN Splitter)12 or 24 VDSL2 (17 or 30MHz)

AC Controller Board


120

VDSL configuration of the REM-FD DC power supply

NVSU-B

NVLT-D

Dummy

NRCD-A


121

VDSL configuration of the REM-FD AC power supply

24 port splitter

24port VDSL2 17/30

NRCA-A


122

ADSL2+ and Voice-LT configuration of the REM-FD

NPSP-D NALT-C NPOT-A NRCD-A


123

NRCD-A New equipment REM-FD Control board DC input

The Remote Expansion Module Flexible Density DC Controller Boardhas three functions:

PSU (Power Supply Unit) DC DC converterDC power dual feed (-48 V / -60 V) with two branches (RETA/BATA and RETB/BATB)

ControllerExternal Interfaces

> PSU• A DC input voltage enters the unit at the controller board, where the necessary filtering, fuses,

switches and surge protection is implemented. The -48V is distributed to the other slot positions via the backplane. On the controller board, the -48V input voltage is converted to a 12VDC bus voltage for powering the fan unit and a 3V3 bus voltage used to supply the On-Board Point-Of-Load (POL) converter. The power consumption of the SB-REM is maximally 300 W (peak) and 200 W (average) when powered from the NRCD-A. Power is applied to both BAT-A and BAT-B inputs, to minimize the voltage drop on the boards. It uses the one with the highest absolute voltage. It switches automatically to the other supply branch if a voltage drop or failure of the initial supply branch occurs.

> ControllerThe controller functions include:

• Interconnections between the controller board and the other slot positions via the backplane• Dying gasp functionality• A link with the host via the Man Machine Interface (MMI) RS-232• Control signals for active/standby functionality and 8KHz reference clock generation• Control of the fan unit, for this purpose 12V fan power, PWM signals for fan speed control and

tacho feedback signals are implemented. A fan present and fan ID signal is received• Scanning of five external alarm inputs and driving of two external alarm outputs• Local alarm scanning (fan-alarm, DC-input alarms, temperature alarms and SFP alarms• Handling of over-temperature shutdown.

> External InterfacesNext to the power input the controller board has the following features:

• Alarm I/O interface• On/Off Switch• Alarm Cut-Off (ACO) switch LEDs for ACO, Fan alarm, Alarm, System, and Power• Two SFP interfaces• Ethernet Interface• Craft interface


124

NRCA-A New equipment REM-FD Control board AC input

The Remote Expansion Module Flexible Density AC Controller Boardhas three functions:

PSU (Power Supply Unit) AC DC converterAC power single feed connector 220-240 VAC to an -48 VDC voltage

Controller

External Interfaces

> PSU• The NRCA-A first transforms the 220 VAC to an -48 VDC voltage. The -48VDC is distributed to the

other slot positions via the backplane. On the controller board, the -48VDC input voltage is converted to a 12VDC bus voltage for powering the fan unit and a 3V3 bus voltage used to supply the On-Board Point-Of-Load (POL) converter. The power consumption of the SB-REM is maximally 110 W when powered from the NRCA-A.

> ControllerThe controller functions include:

• Interconnections between the controller board and the other slot positions via the backplane• Dying gasp functionality• A link with the host via the Man Machine Interface (MMI) RS-232• Control of the fan unit, for this purpose 12V fan power, PWM signals for fan speed control and

tacho feedback signals are implemented. A fan present and fan ID signal is received.• Scanning of five external alarm inputs and driving of two external alarm outputs • Local alarm scanning (fan-alarm, AC-input alarms, temperature alarms and SFP alarms)• Handling of over-temperature shutdown.

> External InterfacesNext to the power input the controller board has the following external features:

• Alarm I/O interface• On/Off Switch• Alarm Cut-Off (ACO) switch• LEDs for ACO, Fan alarm, Alarm, System, and Power• Two SFP interfaces• Ethernet Interface• Craft interface



University

NRCx-x External Interfaces

REM-FD


126

External Interfaces: Optical Interface

Two optical links provided (GiGE link), one per LT equipped.Clear indication of direction provided on the REM.

Optical indicators provided per direction to indicate that the link is active.

Connects to one of following Central Office options:7330-XD (ARAM-D) (ECNT-A/ECNT-C), via board GENC-E (any link).

7330-FD (NFXS-B) (NANT-A), via board NCNC-D, NCNC-E (any link).


127

External Interfaces: Alarm Connector

This interface can be used to support e.g. door-alarm reporting (alarm input) and to provide visual/audible indicators (alarm output) for alarm conditions.

Closing an alarm input contact is resulting in alarm ON condition.

1

9

8

15


128

External interfaces: Power inlet & Visual indicators

Green LED: ON when respective BAT supplied

Power inlet: Use Phoenix connector

5.08mm

PWR-LED: Green LED, ON when power present

SYS-LED: Green LED, ON when board starting-up, 50% duty cycle when OS running but not yet contacted by

FD-LT, 80%ON/20%OFF block when contacted by FD-LT.

ALM-LED: Common alarm LED, activated when any alarm input

or temp alarm of BAT alarm.

ACO-LED: Activated when ACO button pressed briefly and any of

alarm input 1..5 active.

FAN-LED: Active when FAN-unit in alarm state (extracted of failing fan-blower)



University

7354 ISAM FTTB RU

ISAM Remote Unit – Compact full-service access node

> The Alcatel-Lucent 7354 Intelligent Services Access Manager (ISAM) Fiber-to-the-Building (FTTB) Remote Unit (RU) is a compact full-service IP access node for MDU and cabinet deployments, designed to deliver up to 100Mbps over VDSL2.


130

7354 ISAM FTTB RU

Feature Content24p VDSL2 stand-alone IP-DSLAM, built-in splitters

– 12a/b, 17a and 30a DSL profile– ADSL and ADSL2+ support– ETSI and ANSI bandplans

Variants POTS or ISDN, AC or DC19” “pizza box” chassis, 1.5 RU highStacking up to 4 unitsFront panel cable access for flexible installation in cabinets and buildingsIndustrial temperature for outdoor deploymentIGMPv3 supportL2 forwarding: VLAN CC and I-bridge

Value or ApplicationRemote deployment close to customer (MDU or cabinets) delivering very high

bandwidth (100Mbps symmetrical)ISAM compatible management: TL1, CLI and AMS R8.3 integration

> The Alcatel-Lucent 7354 Intelligent Services Access Manager (ISAM) Fiber-to-the-Building (FTTB) Remote Unit (RU) is a compact full-service IP access node for MDU and cabinet deployments, designed to deliver up to 100Mbps over VDSL2. Its non-blocking architecture and IGMPv3support, including IGMP snooping and IGMP Immediate Leave, ensure scalable delivery of high-quality IPTV services. The 7354 ISAM FTTB RU is optimized for MDU deployments with a 19in. form factor, front panel cable access, and AC/DC powering, and is temperature hardened for outdoor deployments. Its 24 VDSL2 ports support 30a, 17a, and 12a/b profiles and are backwards compatible with ADSL/2+.


131

7354 ISAM FTTB RU

Power–36 to –72 VDC

Power100-240 VAC

> The 7354 ISAM is a pizza box equipment in which all the items are built-in units (fan unit, Line Termination (LT), splitter and PSU/control board).

> The 7354 ISAM is offered in different variants depending on the PSU unit type and the POTS/ISDN service options.

> The AC version requires 100-240 VAC single-feed input from the mains. The DC version supports -36 to –72 VDC single-feed or dual-feed input (normal provided by -48 or -60 VDC sources). When using dual-feed DC input, the unit supports power load sharing, and power backup in case one of the power sources fails.



University

Addendum

Supported LT boards

IWF capabilities


136

www.alcatel-lucent.com

85460069-3fl00276-wb-ed03-p11-7302-7330-isam 2ver

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