Huawei OptiX PTN 3900 Quick Installation Manual page 21

Installing and Routing cables
5
Installing and Routing Alarm Cables — Connection of the Alarm concatenation
Upper subrack
Lower subrack
When any subrack generates a critical or major alarm, the alarm monitor reports the alarm.
To alarm monitor
B
B
A
A
15
Orange
PIN1
PIN2 Orange-white
PIN3 Green
PIN4 Blue
PIN5 Blue-white
PIN6 Green-white
PIN7 Brown
PIN8
Brown-white
PIN1
Blue
PIN2
Blue-white
PIN3
Brown
PIN4 Orange
PIN5
Orange-white
PIN6
Brown-white
Green
PIN7
Green-white
PIN8
PIN8
PIN1
To alarm monitor