Huawei OptiXRTN 980L - External Alarm Cable Installation; Alarm Cable Pin Assignment; Alarm Cable Connection to RTN 980 L

Assembling External Alarm Cables Based on the Pin Assignment
a
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Installing External Alarm Cables
Installing External Alarm Cables for the RTN 980L
b
ALMI
ALMO
AUX board
The AUX board provide the ALMO port and ALMI port.
ALMI
Pin Color
Relationshi
p
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
32