Chapter 7 Maintenance; Trouble Reporting And Diagnosis; Table 7-1 Fault Detection Items - NEC NEAX2000 IVS2 General Description Manual

Chapter 7 Maintenance

Trouble Reporting and Diagnosis

ITEM
1
Data Transmission Error
2
between MP and FP/AP
3
4 Digital Interface Fault
5
6
7
8 D-channel Circuit Down
9 Common Channel Down
Number of lockout station
10 exceeds a predetermined
11 SMDR Memory overflow
12
13
14
2
NEAX2000 IVS General Description
NDA-24293, Issue 2
The urgency of a fault is indicated by the MJ/MN lamp provided on the Power Card
and optional external alarm indicator. Details of the alarm indications are shown in
Table 7-1.
Faulty plug-in cards are quickly replaced with a spare providing minimum disruption
of service and no loss of system memory.
Table 7-1
DESCRIPTION
Reset Initial
FP/AP Card Down
BUS Card Fault
term
D Line Fault
Station Line Fault
value
AC Power Down
DC Output Down
Fuse Blown
Fault Detection Items
ALARM INDICATION POWER
CARD/EXTERNAL
ALARM INDICATOR
(OPTION)
MJ
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Available Available
Not Available Available
Available Available
Available Available
Available Available
Available Available
REMARKS
MN
Indication of MJ or
MN alarms is
software-controlled
on a per fault basis.
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