Raisecom RCMS 2811, Руководство пользователя

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User Manual
1
Chapter 1
System Overview
RCMS2811 is an ideal transmission device of optical fiber for point-to-point networks,
medium-sized and small capacity networks, such as wireless communication base stations, private
communication networks and switch networks. It can be applied to either public networks or various
private networks.
The transmission capacity of RCMS2811 is optional. The maximum capacity is 16 E1 channels and
one Fast Ethernet ports. RCMS2811 can be remotely managed.
— Main Features
— Device Part Number Description
— RCMS Series Model List
Main Features
The device’s main features include:
¾ Low power consumption due to extra large-scale ASIC chips; high reliability due to 4-layer
PCB
¾
Provide local/remote network management
¾
Alarm indicators of local and remote equipments
¾
Remote device power off alarm
¾ Support ALS function
¾ Provide two fiber optical interface for redundant fiber optic link to improve stability
¾ Provide maximum 16 E1 interfaces (2048Kbps), transparent mode
¾ Local/remote E1 channel loop-back test function, easy fault location
¾ One 10/100Mbps auto-negotiation Ethernet port
¾ Support auto-negotiation and force working mode of Ethernet port
¾ The maximum Ethernet frame size is 1916 bytes
¾ Support flow control of IEEE802.3x in full duplex mode and back pressure in half duplex
mode
¾ One extend slot can be used for one channel V.35 service
¾ Redundant power supply of 220V, -48V and +24V.
¾ Power consumption <10W, good working stability
Device Part Number Description
RCMS2811 series standalone Ethernet multiplexer’s part number is defined as the following rules:
RCMS2811 - A - B - C - D
Here A, B, C and D are alterable in the part number.
A: 120FE, 240FE and 480FE.
120FE/240FE/480FE means there are 4/8/16 channels E1 services and one Ethernet.
B:
Blank means E1 is 75 Ω unbalanced interface;