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RS1020 63E1 compact STM-1 level SDH transmission system

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.

Product Description

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:

 

RS1020  63E1 compact STM-1 level SDH transmission system

Fig. 3-1 Point to point network

 

RS1020  63E1 compact STM-1 level SDH transmission system

Fig. 3-2 Chain network

 

RS1020  63E1 compact STM-1 level SDH transmission system

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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