Filter
Top Products
NDA-24300 CHAPTER 3
Page 233
Issue 1
SYSTEM MESSAGES
This message displays when a grave failure occurs on the SDT (PA-SDTA/B) card. If this is issued, remember
the ACT/STBY change of the SDT card may be followed, as a result of fault detection in the optical fiber line
(see [33-E] message).
➀
MG (Module Group)
➁
Details on alarm
Note:
Fault repair procedure on each alarm is shown on the next page.
1: XXXX 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b7 b0
b7 b4 b3 b2 b1 b0
Default Alarm:
MN
33-C
SDT Alarm Trouble
Default Grade:
3
Grade Modified: Lamp Modified:
b7: 0/1 = Even-number MG/Odd-number MG
b4, b3 b2-b0
0 0 0 0 0
0 0 0 0 1 Hardware Failure
0 0 0 1 0 Optical Line Failure
0 0 0 1 1 Onboard Power Alarm
0 0 1 0 0 Abnormal MB Key Operation
0 1 0 0 0
0 1 0 0 1 PCM Loss
0 1 0 1 0 Frame Alignment Loss
0 1 0 1 1 Receiving Section Failure
0 1 1 0 0 Mistake Rate Degradation
0 1 1 0 1 Sending Section Failure
0 1 1 1 0 Mistake Detection
1 0 0 0 0
1 0 0 0 1 Receiving Path Failure
1 0 0 1 0 Pointer Failure
1 0 0 1 1 Sending Path Failure
1 0 1 0 0 Receiving Path Error
1 0 1 0 1 Sending Path Error
b7: SDT Card Status
0/1=No. 0 System/No.1 System
SDT Card
Trouble
52M Interface
Alarm
VC-11 Path
Trouble
Note