TM 11-7025-221-20
2-15. Additional Troubleshooting Procedures - Continued.
Additional Troubleshooting Chart - Continued
Display
Additional Troubleshooting
Message
Alarm No.
13
A6
14
Not used
If port 1 is conditioned diphase, replace A20.
15
LOT1 A6
If port 1 is unbalanced NRZ, replace A3.
16
Not used
17
LOS2 A3 A7
18
Not used
19
A6
Not used
20
If port 2 is unbalanced NRZ, replace A3.
21
LOT2 A6
22
Not used
23
LOS3 A3 A7
24
LOS3 A20
25
Not used
26
A6 A5
27
Not used
If port 3 is conditioned diphase, replace A20,
28
LOT3 A5
If port 3 is unbalanced NRZ, replace A3.
LOS4 A3 A7
29
Not used
30
Not used
31
A6 A5
32
Not used
33
LOT4 A5
34
If port 4 is unbalanced NRZ, replace A3.
Not used
35
LOS5 A20
36
2-25
