Huawei OptiX RTN 980 Quick Installation Manual page 30

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