Appendix A Introduction Of Making Cable; E1 Interface; Cable Of Ethernet; Rs232 Cable Of Data Channel - Raisecom RCMS2504-120 User Manual

7. Appendix A Introduction of making cable

A.1 E1 interface
75ohm adopt DB37 external hanging coaxial adapter:
Suggest using SYV 75-2-2 coaxial cable. The longest distance is less than 200 meters.
Take CC3-K3 plug out fittings and screw off protecting sheath. Split the core and shielded layer of
coaxial cable. Protecting sheath, iron collar and cannulation (Φ3) cover onto cable. Firmly weld
core and CC3-K3. Wrap CC3-K3 plug in protecting sheath of cable. Hold and press iron collar by
press pincher. Wrap CC3-K3 and line in cannulation, which is contracted and fastened by heat.
Fix protecting sheath.
120ohm DB37 male connector is defined as following:
DB37 pin
definition
OUT
IN
Other pin:
A.2 Cable of Ethernet
Use Cat 5 twisted pair to connect the equipment. Please note the twisted pair is less than 100 meters.
Can choose parallel or cross line.
RJ45 line order is as following:
Pin 1
number
Definition TX+
A.3 RS232 cable of data channel
Auxiliary data channel adopts RJ45 connector whose pins definition are as following:
3 ——RXD
6 ——TXD
4¡ ¢ 5——GND
st
1 Branch
3¡ ¢ 4
21¡ ¢ 22
GND
st
The 1 PIN
2 3
TX- RX+ Not Used
232 signal input
232 signal output
nd rd
2 Branch 3
7¡ ¢ 8 11¡ ¢ 12
25¡ ¢ 26 29¡ ¢ 30
th
The 8 PIN
4 5 6
Not Used RX-
16
Raisecom Technology Co., Ltd
th
Branch 4 Branch
15¡ ¢ 16
33¡ ¢ 34
7 8
Not Used Not Used