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Chapter 1
Overview
1.1 Instruction
RC902-FE4E1-BL is a Fast Ethernet to 4 E1 interface converter with the up-to-date inverse multiplexing
function, which is one of the most widely used Ethernet access solution using E1 resources.
RC902-FE4E1-BL modular interface converter is a communication device provides the conversion from
10/100M self-adaptive Ethernet interface to 4 E1 interfaces. The device can be plugged into Raisecom
chassis and realizes SNMP network management. It realizes remote management by communicating with
RC901-FE4E1 or RC902-FX4E1.
1.2 Features
¾
One 10/100M self-adaptive Ethernet twisted pair interface
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Four 120
Ω
balanced connectors for 4 ways of E1 signal
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All-around E1 alarm types including local and remote alarms
¾
Loop back testing function for local and remote E1 interface to facilitate bit error judgment
¾
Real-time bit error detection and E1 channel automatic protection and recovery function
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Improved adapting ability to acute jitter and wander in complicated network environment
¾
IEEE802.1q VLAN packet transparent transmission supported; spanning tree protocol based
fault-tolerance network construction supported
¾
Grand scale ASIC chip adoption to ensure low power consumption; 4-layer PCB based design to
ensure high reliability
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Working in RC002-16 16-slot chassis, RC002-4 4-slot chassis and RC001 single-slot chassis with
build-in power supply
1.3 Ordering information
Table 1-1 RC902-FE4E1-BL product ordering information
Device model
Description
RC902-FE4E1-BL Modular
device
4 120
Ω
balanced E1 interface (2 RJ-45)
1 10/100M self-adaptive Ethernet twisted pair interface
