CHAPTER 2 TROUBLESHOOTING
– 138 – NWA-008847-001 Rev.3.0
a6ch2001.fm
FAULT DIAGNOSIS AND TROUBLESHOOTING
Display on MAT/CAT
When the MJ/MN alarm has been indicated, you can diagnose the contents of the fault by the Fault Mes-
sage and the Station Line Status Display features which are displayed on the MAT or the CAT, and restore
the fault.
Fault Message
Item (1) shows the display format for the Fault Message feature, and item (2) shows the fault diagnosis
and troubleshooting method. For details of the Fault Message feature, see “FAULT MESSAGE” of CHAP-
TER 1. Page 10
(1) Display Format
1: 01 MN MP 00
2: 02/10/24 20:31
3: X X X X X X X X
Fault Occurrence Kind No./Fault Restoration Kind No.
Alarm Kind (MJ/MN/– –)
CPU Kind and No. that detected the fault
MP 00 : MP
FP 00-63 : FP No. 0-63
AP 04-15, 20-31 : AP No. 4-15, 20-31
Date and Time of Fault Occurrence and Restoration
Fault Information/
Fault Restoration Information
(For details, see “Remedial Action on Each Fault Kind” and
“Fault Restoration Information”.)
4: X X X X X X X X
Fault Information/
Fault Restoration Information
(For details, see “Remedial Action on Each Fault Kind” and
“Fault Restoration Information”.)
1st Screen
2nd Screen
3rd Screen
4th Screen
FAULT DIAGNOSIS AND TROUBLESHOOTING
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