xpon - fiber-to-the-x for cable operators

xPON - Fiber-To-The-x for Cable Operators

October 2014

EPON and GPON

3PRIVATE AND CONFIDENTIAL © 2011 CommScope, Inc

What do EPONs Transport?

Host Client

An Ethernet PassiveOptical Network transportsEthernet signals between

a host and a client


What do EPONs Transport?

Host Client

An Ethernet PassiveOptical Network transportsEthernet signals between

a host and a client

Ethernet is sometimesconfused with Internet, whichis a service that rides on the

Ethernet packets

Ethernet transport isalso referred to as transporting

IP data, or Internet Protocol data


Transporting Ethernet Signals

We use Ethernetlinks every day

Our desktopcomputers are often connected with aCAT-5 cable toa Router or Switch

We use wireless links between our laptops, iPads and Kindles to exchange Ethernet information

In offices, we have CAT-5 cables that link to computers via switches and routers to mainframe switches that collect the

user, or client, signals and route them internally or consolidate them at the internal host. There, the consolidated signals are

sent outside the building on backhaul links to major IP network providers.


Comparing Ethernet Networks

Ethernet Network

Consider a CAT-5 cable connecting to an RJ-45 Jack on one end of our network, and another RJ-45 Jack at the other end of our network connecting to another CAT-5

cable.

This will be the baseline for our comparison of several different forms of Ethernet Networks.


Home Ethernet Network

Home Ethernet networks include wired and wireless

Wired connects the cable modem to other Ethernet interfaces through a router

Wireless converts the Ethernet signal at the router into an RF signal thatis broadcast/received and converted back to Ethernet at the user device


Cable Operator Ethernet Network

Cable operators begin transporting Ethernet data streams to subscribers bytaking Ethernet signals from a switch in the headend or hub and feeding them into the Cable Modem Termination System CMTS

The CMTS converts the signals to RF and they are transported over the HFC network to the subscriber’s Cable Modem, where they are converted back to Ethernet and are available at the RJ-45 Jack


RF Tap

1

n

RF Video

CM Data

VoIP

Computer

RFSTB

RF video

Voice

Laser TX

Return PathReceiver

Cable Modem

eMTAGateway

AnalogPhone

STB Control

CMTS RF drop

HFC Node

Ethernet Points in Cable Networks

Splitter / Tap

1

n

Computer

RFSTB

IP video

Voice

Edge QAMLaser TX

EDFA

Return PathReceiver

Cable Modem

eMTAGateway Analog

Phone

STB Control

CMTS

RFoG ONUMicroNode

RF Video

CM Data

VoIP

Splitter / Tap

EPON OLT

1

n

IP video

Voice

Computer

IPSTB

IPPhone

EPON ONT

IP Video

IP Data

VoIP


RF Tap

1

n

RF Video

CM Data

VoIP

Computer

RFSTB

RF video

Voice

Laser TX

Return PathReceiver

Cable Modem

eMTAGateway

AnalogPhone

STB Control

CMTS RF drop

HFC Node

Ethernet Points in Cable Networks

Splitter / Tap

1

n

Computer

RFSTB

IP video

Voice

Edge QAMLaser TX

EDFA

Return PathReceiver

Cable Modem

eMTAGateway Analog

Phone

STB Control

CMTS

RFoG ONUMicroNode

RF Video

CM Data

VoIP

Splitter / Tap

EPON OLT

1

n

IP video

Voice

Computer

IPSTB

IPPhone

EPON ONT

IP Video

IP Data

VoIP

Ethernet Ethernet

Ethernet

Ethernet

Ethernet Ethernet


Media Converters

Media Converters (MC) simply use fiber optics to

replace point-to-point Ethernet connections

100Mbps via dedicated fiber HE MC to Sub MC –

about $700 per sub

1Gbps via dedicated fiber HE MC to Sub MC –

About $1,700 per sub

1Gbps via shared fiber HE CWDM MC to Sub CWDM

MC – about $2,700 per sub at 4 subs per fiber


ActiveE, P2P and MetroE Architectures

ActiveE, P2P –

Dedicated-Fiber Architecture

ActiveE, P2P –


P2P Architecture

X-Conn

Router

MetroE, P2P –


MetroE, P2P –


• Maximum fiber count

• More OSP equipment than PON

- Enclosures, ducting, etc

• Dedicated TX/Rcvr per customer

• Same as ActiveE but dedicating

wavelengths

• Two dedicated wavelengths per

customer

• Fewer fibers than ActiveE

• Same number of TX and Rcvrs as

ActiveE


PON History

PON grew outof a need bythe Telecom

industry for…

– Dramatically more bandwidth to subscribers– Replacing aging copper infrastructures– Reducing power requirements– Reducing OPEX costs

ProvenTechnology…

– First standards developed in 1995– ITU and IEEE standards-based– 15 years of investment in perfecting PON technology – The number of PON ONT shipments is forecasted to

reach 24.5 million by 2013


PON History

1995 1996 1997 1998 1999 2000 2001 2002 2003 2004

FSAN starts first format PON activity.155Mbps APON ITU G.983 series

Enhanced to BPON 622/155Mbps with3rd lambda, protection and DBA

EFM starts work on 802.3 ah incl. EPON

FSAN starts GPON work G.984 series =extension of G.983 series, up to 2.4Gbps

ITU approves GPON

EPON ratified by IEEE


Why PON?

Security

Converges voice,video, data and

building automationonto a single fiber

No electronicsbetween the data

center andthe desk

Green IT

No EMI emissions

Centralized andsecure administration

Improved reliability

Reduced installationtime and costs

Reduced operationaland training costs

Enhanced networkperformance

Eliminates the activedistribution layer

of switches

No need for backuppower or specialcooling in riser

closets

As future technologyevolves only theendpoints need

upgrading

Lower cost

Less power

Less space


PON Topology


FTTx Structure by TechnologiesFTTx Structure by Technologies

Optic Cable

Backbone

Network

Backbone

NetworkCentral OfficeCentral Office SubscriberSubscriber

ATM

IP/WDM

PSTN

SONET/SDH

Remote NodeRemote Node

OLT

Remote Office

Active Equipment such as OLT

Passive Splitter - Combiner

λλλλ

λλλλ

λλλλ1· · · λλλλN

λλλλλλλλ λλλλ

λλλλλλλλ λλλλ

λλλλ1λλλλ2λλλλN

AON(Optical

Ethernet]

AON(Optical

Ethernet]

E-PONB-PONG-PON

E-PONB-PONG-PON

WDM-PONWDM-PON

Passive MUX - DMUX

AON (Active Optical Network): Active optical networkE-PON(Ethernet Passive Optical Network): Supports Ethernet, upstream/downstream max. 1.25G, 20km, 32 splitsB-PON(Broadband Passive Optical Network): Supports ATM, upstream 622M/downstream 1.25G, 20km, 32 splitsG-PON(Gigabit Passive Optical Network): Supports ATM/Ethernet, upstream 1.25G/ downstream max. 2.5Gbps, 60km, 64 splitsWDM-PON(Wavelength Division Multiplexing PON): Optical transceivers as many as the number of subscribers are required, 32/64 splits

AON (Active Optical Network): Active optical networkE-PON(Ethernet Passive Optical Network): Supports Ethernet, upstream/downstream max. 1.25G, 20km, 32 splitsB-PON(Broadband Passive Optical Network): Supports ATM, upstream 622M/downstream 1.25G, 20km, 32 splitsG-PON(Gigabit Passive Optical Network): Supports ATM/Ethernet, upstream 1.25G/ downstream max. 2.5Gbps, 60km, 64 splitsWDM-PON(Wavelength Division Multiplexing PON): Optical transceivers as many as the number of subscribers are required, 32/64 splits

17


Stream ProcessingStream Processing

� Downstream

� Upstream

Single Copy Broadcast by splitter, and classified by LLID(Logical Link ID)

Multiplexed by Time Sharing

MPCP(MultiPoint Control Protocol)

: Collision prevention protocol upon Time Sharing

DBA(Dynamic Bandwidth Allocation)

: Scheduling of uplink Traffic

18


PON (Passive Optical Network) DescriptionPON (Passive Optical Network) Description

� Flexible structure that supports any FTTC, FTTB, FTTH scenarios

� “Passive” means the splitters don’t need any power feeding

� Point-to-Multipoint structure.

Structure in which an OLT is placed in the center, and multiple ONUs are connected

through 1:N optical splitters (Components : OLT, Optical Splitter, ONU)Central Office(CO) Optical Distribution Network

(ODN)Subscribers

•OLT : Optical Line Terminal•ONU : Optical Network Terminal•ONU : Optical Network Unit

SMF 10~20km

Optical Splitter

ONU

1x32 ONU

ONU

IP Video

Terrestrial, SatelliteCATV

Data

Voice

OLT

Optical Cable(SMF)

19


The OLT (Optical Line Terminal)

SwitchFabric

NNI

MGMT

TDM

PON

PON

Network Interface (NNI)• Provides connection

to Services• Data, Telephony

– Any Ethernet Service• Link Aggregation• 1G or 10 G

Management Interface• Provides connection for

system management• Provisioning• Alarms

TDM Interface(s)• Provides connection to

legacy TDM network• T1 and DS3 services

PON Interface• Provides Optical output

to splitters and CPE• Traffic through this

interface is in PON protocol

• Also serves as receiver for traffic from CPE

• 1490nm Downstream• 1310nm Upstream

Switch Fabric• Provides internal switching of traffic between

network and PON interfaces• Redundant


1G & 10G Topology

Residence

CommunicationsEntertainment

Residence

Multi-Tenant

Corporate Offices/ Business Parks

CommunicationsSecurityAutomation

Optical Splitter

CommunicationsEntertainment

CommunicationsSecurityEntertainmentAutomation

CommunicationsSecurityAutomation

ONT

Small BusinessSoHo

ONT

ONT

111132323232

111132323232

ONT

1Gbps EPON1Gbps EPON1Gbps EPON1Gbps EPON

10Gbps EPON10Gbps EPON10Gbps EPON10Gbps EPON

Optical Splitter

WWWWDDDDMMMM

ONT

CombinedCombinedCombinedCombined1G & 10G EPON1G & 10G EPON1G & 10G EPON1G & 10G EPON 1G Services1G Services1G Services1G Services

To Home & Small BusinessTo Home & Small BusinessTo Home & Small BusinessTo Home & Small Business

10G Services10G Services10G Services10G ServicesTo BusinessTo BusinessTo BusinessTo Business

1G EPON1G EPON1G EPON1G EPON

October 16, 2014

1490nm

1310nm

1577nm

1270nm


PON OLTs – GPON & EPON

• All 3 OLTs support EPON and GPON• Common hardware base; different software; PON modules, optics• DPoE Certification

CommScope offers three options:

C9264• Up to 64 PONs

C9016• Up to 16 PONs

C9500• 1G & 10G Platform• Up to 80 PONs


C9500 Chassis Configuration

10 x PIM (1G and/or 10G)

2 x Power (1+1)

2 x SCM

2 x LIM

UNIVERSAL EPON BLADE

• C9500 10G PON blade - current hardware - supports:

– 1/1 EPON– 2/1 (turbo) EPON– 10/1 EPON– 10/10 EPON

• Use as a universal PON blade– Control rates through the optics

used

• Advantages– Scalable migration to higher

rates; implement as needed by changing optics

– Lower upgrade costs• No need to scrap and

(re)purchase PON blades• Per PON granularity

2 x TIM (optional)


OLT Overview

PON

Modes

PON

Capacity

Uplink

Capacity

Backplane

CapacityRedundancy Power

C9016GPON

EPON16

24G

(2x10, 4x1)128Gb

Full except

SCMDC / AC

C9264GPON

EPON64

80G

(2 blades,

8x1G, 4x10G,

2x10G+4G)

960Gb Full DC / AC

C9500

GPON

EPON

10G EPON

80

160G

(2 blades,

8x1G, 8x10G)

1.92Tb FullDC

(AC roadmap)


• 4 x 10/100/1000Base-Tx Ports• 2 x FXS ports for VoIP• IEEE 802.11b/g/n WiFi

CS-6204W

• 4 x 10/100/1000Base-Tx Ports• MDI/MDIX Auto-Negotiation

CS-8004A

EPON ONUs – Residential & SMB

• 1 x 10/100/1000Base-Tx Port• MDI/MDIX Auto-Negotiation

CS-8001A


EPON & GPON ONTs - Commercial

CM-6024A

CM-8024A

CM-7024A

1U, 19’’ rack-mountable24FE + 2 uplink moduleUplink option• 100Base-FX, 1000Base-X, 1000Base-T, EPON

1U, 19’’ rack-mountable24GE + 2 uplink moduleUplink option• 100Base-FX, 1000Base-X, 1000Base-T• EPON, GPON, 10G EPON

1U, 19’’ rack-mountable24-port GE with PoE + 2 uplink moduleUplink option• 1G Base-T or 1G-Base-X Combo• EPON, GPON, 10G EPON

CM-6008ADesk / flat surface mount8-port FEFixed PON Uplink


SFP ONU

October 16, 2014

GEGEGEGE----PONPONPONPON

Optical Splitter

9016 or 9264OLT

111164646464 SRW224 SRW224 SRW224 SRW224

Cisco SwitchCisco SwitchCisco SwitchCisco SwitchTK3713 SFP TK3713 SFP TK3713 SFP TK3713 SFP Teknovus ONUTeknovus ONUTeknovus ONUTeknovus ONU

Management / Management / Management / Management / ProvisioiningProvisioiningProvisioiningProvisioiningSystemSystemSystemSystem

• SFP form-factor ONU

• Plugs into any SFP-enabled

device

• Switches, routers, DAS,

specialized modems

• EPON manages ONU; In-band

management for device

ONUONUONUONU


Remote OLT

28

Internet

RF

IP

RouterSTB

PC

ORX

CMTS

Remote OLT : HFC ONU + RF Overlay

Fiber

Coax

UTP

1 RF/4Eth

OTX

Legacy

Subscribers

HE / Hub SubscriberAccess Network

� Hybrid Overlay Node: HFC ONU + PON OLT


System Layout

29

Power Module #1 Power Module #2

xPON mod

(4P optional)

Uplink &xPON(4P)

(Fixed)

Switch Block

Uplink &EPON(4P)

(Fixed)EDFA #1EDFA #1

EDFA #2EDFA #2

RF Overlay

OTX

RF Overlay

OTX

HFC ONU

ORX & OTX

HFC ONU

ORX & OTX

RF AMP #1RF AMP #1C

o

n

n

C

o

n

nRF AMP #2RF AMP #2


EPON Interoperability

• Allows multi-vendor environments– Mixed vendor ONTs/ONUs with CommScope OLT– Mixed vendor OLTs with CommScope ONTs/ONUs

• EPON Interop Driven by DPoE– Tier 1 MSOs cannot allow single-vendor solutions

• Advantages– Continuity of Technology– Best-of-breed throughout network– Competitive pricing

• Disadvantages– Can lead to lowest common denominator environment– Roadblock to customization

SRW224 SRW224 SRW224 SRW224 Cisco SwitchCisco SwitchCisco SwitchCisco SwitchGPONGPONGPONGPON

CommScopeOLT

CommScopeONT

1111nnnn

Finisar SFP Finisar SFP Finisar SFP Finisar SFP ONUONUONUONU

PAS6301PAS6301PAS6301PAS6301PMC ONUPMC ONUPMC ONUPMC ONU

TechnovusTechnovusTechnovusTechnovusONTONTONTONT

ZXA10ZXA10ZXA10ZXA10ZTEZTEZTEZTE

EMSEMSEMSEMSManagementManagementManagementManagement


Rationale for PON

• Integrates All Services on a Single Network Infrastructure– Voice – analog and VoIP instruments– Data – HSIA and private networks– Video – RF and IPTV

• Reduced OSP Costs– Minimize number and size of ducts – Minimize fiber counts– Minimize associated civil works costs (trenching, right of ways,

splicing)

• Green Solution – Elimination of power and HVAC in the OSP

• Lowest Cost Per Connected Subscriber

xPON overlay of RFoG


RFoG and xPON on the Same Network

PON WDM• Allows 1550nm wavelength carrying RF video to be muxed onto PON fiber• Allows RF return signal at 1610nm to be demuxed from the PON fiber

RF HeadendTransmitter

PON OLT

RF HeadendReceiver

PON WDM

1490nm/1310nm

1610nm

1550nm

1310/1490/1550/1610nm

PON Network


Commercial Services EnabledHybrid RFoG/xPON

WDM

1550nmLaser

Transmitter EDFA

MicroNode

DownstreamChannelLineup Hub

Optical DistributionNetwork Customer Premises

To CMTS/STB Controller

Return PathReceiver

1550 nm

1610 nm



WDM

1550nmLaser

Transmitter EDFA

MicroNode




Return PathReceiver

1550 nm

1610 nm

GEPON PortAdd OLT 1310/1490nm

IP VideoIP VideoIP VideoIP VideoData, VoIPData, VoIPData, VoIPData, VoIP

TDM VoiceTDM VoiceTDM VoiceTDM VoiceTDM BusinessTDM BusinessTDM BusinessTDM Business



WDM

1550nmLaser

Transmitter EDFA

MicroNode




Return PathReceiver

1550 nm

1610 nm


OLTOLTOLTOLT





WDM

1550nmLaser

Transmitter EDFA

MicroNode




Return PathReceiver

1550 nm

1610 nm


OLTOLTOLTOLT



Available Splitter Port

Add Business ONT



WDM

1550nmLaser

Transmitter EDFA

MicroNode




Return PathReceiver

1550 nm

1610 nm


OLTOLTOLTOLT




Add Business ONT

ONTONTONTONT



WDM

1550nmLaser

Transmitter EDFA

MicroNode




Return PathReceiver

1550 nm

1610 nm


OLTOLTOLTOLT




Add Business ONT

ONTONTONTONT

Available MicroNode PortAdd ONT


Break Quiz

• Which of the following is true about the compatibility of RFoG with PON networks

1. Any RFoG solution works with PON on the same fiber2. PON will work with the 1310 version of RFoG3. They both transport signals in native IP format4. They both use the same passive optical plant

xpon - fiber-to-the-x for cable operators

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