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DSLAM Digital Subscriber Access Multiplexer

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Definition A DSLAM is a Network Device, usually placed at a Telephone Company Central Office, That Receives Signals from multiple customer of DSL Connections and puts the signals on a high-speed backbone line using Multiplexing Techniques. DSLAM multiplexers connect DSL lines with some combination of Asynchronous Transfer mode (ATM), Frame Relay, or Internet Protocol Networks. DSLAM enables a phone company to offer business or home users the fastest Phone Line Technology (DSL) with the fastest backbone Network Technology (ATM).

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DSLAM Application Overview IAD Home gateway Business end users xDSL Modem Consumer end user/Soho Multimedia Terminal WLAN Public Phone IP Centrex Video Phone Multimedia Conference Voice-Email DSLAM

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DSLAM Evolution IP Core + Full-Service= Full-Service Access Platform 3G IP Core DSLAM 2G ATM Core DSLAM 1G Time NGN DSLAM Evolution

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ATM & IP Technology Adopted by DSLAM equipment including: ATM and IP Technology Adopted by DSLAM equipment including: ATM and IP ATM ATM uplink rate --155Mbit/s IP IP uplink rate--100Mbits/s,1000Mbits/s (Ethernet)

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Differences between ATM DSLAM and IP DSLAM ATM DSLAM: ATM DSLAM: uplink ATM / Ethernet switch or BAS IP DSLAM: IP DSLAM: uplink Ethernet switch or BAS ATM DSLAM : ATM DSLAM : ATM cell ended on uplink board(if ip uplink) IP DSLAM: IP DSLAM: ATM cell ended on subscriber board ATM DSLAM: ATM DSLAM: internal switch based on ATM IP DSLAM: IP DSLAM: internal switch based on IP

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ZXDSL8220 ZXDSL 9426 ZXDSL 9210 ZXDSL 8426 ZXDSL 8203 ZXDSL 9203 Terminal 831/831A/831D/832/852 732/931/531 CPE series PURE DSLAM series FSAP 9800 FSAP 9803 ZXDSL 9806E/A/H 3G: FSAP series 1G: ATM Series 2G: IP Series Example of ZTE Broadband Access Accessories Outdoor Out30 for Big capacity DSLAM Out50 for medium capacity DSLAM for mini DSLAM

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Theory of ADSL DSLAM ADSL Modem PSTN DATA Switch Splitter

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FSAP/DSLAM Family Overview Large capacity Medium capacity Mini capacity

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9U 896L ADSL per Shelf 672L VDSL per Shelf 448L SHDSL per Shelf 14 EPON Interface 8 GPON Interface CSC 2/4/6 100M/1000M & 10GE, Uplink Interface Line interface card 32/64L ADSL 48L VDSL 32L SHDSL EPON/GPON -48VDC 600mm*600mm, 19inch ETSI standard rack Large Capacity

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Shelf Height: 9U; Rack Used: 600*600*2200 2 Shelves per Rack with Splitter; 3 Shelves per Rack without Splitter Shelf Structure Subscriber Shelf Splitter Shelf

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Shelf Configuration Shelf Configuration Mode 1: Mode 1: Holding subscriber cards without built-in splitters and splitter cards together, implementing broadband data service and narrowband voice service access at the same time.

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Mode 2: Mode 2: Holding subscriber cards with built-in splitter cards only, implementing broadband data service and narrowband voice service access at the same time. Shelf Configuration Shelf Configuration

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Shelf Configuration

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Backplane of DSLAM Subscriber shelf supports three backplanes: MDCA: Supports broad/narrow-band integrated service access Mechanical support for all cards and works with the control and switch card MDCE: Supports pure broadband service access MDCF: Backplane works with the control and switch card to supports larger bandwidth, each slots bandwidth reaching up to 4 GE. Provides two 10G interface uplink slots. Splitter shelf supports only one backplane e.g. MTAN.

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CSC Board Feature The CSC board resides in slot 9 and 11.The CSC board cannot reside in other slots. Height: 9U Core of switching and controlling for the system, providing a series of ports and powerful switching capability on the backplane. DSLAM can be configured with one single CSC card or dual active/standby CSC cards. When the active and standby CSC cards are running, the standby CSC card performs hot backup for the active CSC card.

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Implementing the conversion between the ATM and the Ethernet Provide 32 lines of ADSL access for subscribers. The subscriber data are transferred through PSTN networks. Built-in splitter Provide LED indicator, 32 link LED indicators, sockets, and reset button ATNG CARD Feature

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System Feature Overview DSLAM can Integrating Data, Voice and Video Carrier-Class Reliability Hot-swap of Subscriber Boards Many Service Interfaces (ADSL/ADSL2/ADSL2+/ SHDSL/ VDSL2/EPON/GPON) Multicast Feature (MVLAN,CAC,PRV,CDR,IGMP v2) Full DiffServ Mode QoS for Triple-Play Multiple Maintenance Modes (CLI, Telnet, SNMP) CPE Remote Management

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Base Capacity Features Supporting 16K MAC ; Supporting 4K VLANs ; Supporting 255 ~ 1K IP Multicast Groups ; Supporting 512 Traffic Classes; Supporting 128 QoS Policies

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ZTE FSAP series products application in various distance area CO Mode 3km ZTE FSAP 9800/9803 CASCADING 3km ZTE FSAP 9806H Large Capacity Medium Capacity Cascading

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IPTV Internet IP NETWORK OSS BRAS Other Application DSLAM 10 Km 1x32 1x16 20 Km OLT ONU ADSL VDSL FTTX LAN FSAP EPON / GPON Application FSAP EPON / GPON Application