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RS1020

63E1 Compact SDH Transmission System (RS1020)

RS1020 is the 63E1 compact STM-1 level Synchronous Digital Hierarchy (SDH) transmission system compatible with ITU-T standard. It is designed as a modular system with two 155.520Mb/s optical interfaces to provide an ultra-compact, cost-effective and high capacity platform. It provides fully cross-connect between all tributaries.
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    Overview                         

    RS1020 is the 63E1 compact STM-1 level Synchronous Digital Hierarchy (SDH) transmission system compatible with ITU-T standard. It is designed as a modular system with two 155.520Mb/s optical interfaces to provide an ultra-compact, cost-effective and high capacity platform. It provides fully cross-connect between all tributaries, and can be used as Terminal Multiplexer (TM) or an Add-Drop-Multiplexer (ADM) to build point-to-point, ring and chain transmission network.

     

    Feature

    Achieve Multiplexing from 63 E1 to 2 STM-1 optical interfaces 

    1U height, 19 Inch width standard

    Service interface

    Two STM-1 optical interfaces, SFP optical module (LC connector)

    Maximum 63 E1 interfaces compliant with ITU-T G.703, optional unbalanced/ balanced interface

    System interface

    • Ethernet management interface: EMU (RJ45 connector)
    • RS232 network management interface: CONSOLE (RJ45 connector)
    • RS232 user channel interface: RS232 (RJ45 connector)
    • External synchronization interface / Extendable management interface : ETS1/EXM1, ETS2/EXM2 (RJ45 connector)
    • UALM and DALM output interface: U/DALMO (DB9 connector)

    Timing mode

    STM-1 line timing (T11,T12)

    Tributary timing from E1-1 to E1-63 (T2)

    External timing source input (T31/T32), 2048Kbit/s by default and 2048KHz selectable

    External timing output (T41/T42), 2048Kbit/s by default and 2048KHz selectable

    ITU-T G.813 internal oscillator

    The timing source can be auto-switched according to SSM or operator settings

    Supports 1+1 protection and Automatic Protect Switch (APS) with the switching time less than 50ms

    Supports Remote power Down Detection (RPD) and Auto Laser Shutdown (ALS)

    Supports embedded BERT and various loop back for troubleshooting

    Highly efficient management system

    Supports NE management based on CLI command via RS232 interface or TELNET

    Supports Network management based on PC via unified platform: RAYVIEW

    Supports three network management types: Traditional DCC management, Inner DCN management (by some VC12 channel) and outer DCN management (by E1 cable via outer EXM interface).

    Power system

    Two backup power supply

     220V AC or-48V DC single power

     -48V DC & 220V AC double power 

    -48V DC & -48V DC double power 

     220V AC & 220V AC double power 

    Power consumption less than 25W

     

    Application

     

    RS1020 can be used as Terminal Multiplexer (TM) or an Add-Drop-Multiplexer (ADM) to build a point-to-point, ring or chain transmission network. As following figures shows:

     

     

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    Fig. 1 Point to point network

     

     

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    Fig. 2 Chain network

     

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    Fig. 3-3 Ring network

     

    Note:  Make sure optical A of one NE must be connected with optical B of its neighboring NE.

     

     

     

     

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