Preparing And Installing External Alarm Cables - Huawei RTN 905 V100 Quick Installation Manual

8

Preparing and Installing External Alarm Cables

a
Make an external alarm cable based on pin assignments.
Pin 8
Pin 1
Pin 8
Pin 1
b
Install an external alarm cable.
Pin Assignments for External Alarm Cables
Pin Color Relationship
1
White/Orange
Twisted pair
2
Orange
3
White/Green
Twisted pair
6
Green
4
Blue
Twisted pair
5
White/Blue
7
White/Brown
Twisted pair
8
Brown
ALMI/ALMO
26
Function
First alarm signal input
Ground of first alarm
signal input
Second alarm
signal input
Ground of second alarm
signal input
Third alarm signal input
Ground of third alarm
signal input
Positive of first alarm
signal output
Negative of first alarm
signal output