Raisecom Technology Co., Ltd
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4.2. Introduction of back panel
Figure: back panel of RCMS2504-120
4.2.1. Power Interface and Switch
z
AC supply: adopt standard three-phase electric socket with 220V
z
DC supply: adopt power interface with –48V. Connect left interface with –48V, right with 0V,
and middle with protection GND
z
Switch can control power supply.
4.2.2. Auxiliary Data Channel
RS232 interface: adopt RJ45. Line order refers to appendix A
4.2.3. Ethernet interface
z
Connect each RJ45 with relevant one Ethernet link. Line order refers to appendix A.
z
Each port is 10/100Mbps auto-adaptive.
z
Possess auto-learning cross line function. Support parallel line or cross line to connect with
Ethernet equipment.
4.2.4. E1 interface
A DB37 male connector on the back panel provides 1
st
~4
th
E1 branch ports. The instruction of line
connection refers to appendix A.
z
If adapt 75
Ω
connection mode, require to connectDB37 with eight adaptors of CC3 coaxial
interfaces which type is CC4B-8G. After connection, there are 4 E1 branches from left to right,
where the above row is signal output ‘OUT’ and bottom row is signal input ‘IN’.
z
Do not require adapter for using 120
Ω
connection mode.
4.2.5. Optical Interface
Single strand fiber and SC/PC optical interface
