Huawei OptiX RTN 980 - Installing External Alarm Cables; Alarm Cable Pin Assignment; Alarm Cable Connection

27
Assembling External Alarm Cables Based on the Pin Assignment
a
13
Installing External Alarm Cables
Installing External Alarm Cables for the RTN 980
b
ALMI
Pin Color
Relationship
White/Orange
Orange
White/Green
Green
Blue
White/Blue
White/Brown
Brown
1
2
3
6
4
5
7
8
Twisted pair
Twisted pair
External alarm signal input 3
Grounding
External alarm signal input 2
External alarm signal input 1
Twisted pair
Grounding
Twisted pair
Grounding
Grounding
External alarm signal input 4
Positive alarm signal output 1
Negative alarm signal output 1
Positive alarm signal output 2
Negative alarm signal output 2
Positive alarm signal output 1
Negative alarm signal output 1
Positive alarm signal output 2
Negative alarm signal output 2
ALMO
The AUX board provides the ALMO port and ALMI port.
ALMI
ALMO
AUX board