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ALARM INDICATIONS
NEAX2000 IVS
2
Business/Hotel/Data Features and Specifications
NDA-24271, Issue 1.0
Page 5
ALARM INDICATIONS
General Description
Faults are indicated by the Major/Minor (MJ/MN) lamps located on the AC/DC Power Supply and, optionally,
an external alarm display unit.
Station Application
Not applicable.
Operating Procedure
No manual operation is required.
Service Conditions
1. The following table shows a standard pattern of the faults that can be detected and their alarm indications.
If required, the following alarm indications (MJ, MN, or no indication) can be changed on an individual fault
basis. Refer to the Maintenance Manual for more information.
Note 1:
MJ ALARM is always displayed for power failure regardless of programming.
Note 2:
When FP/DLC, which accommodates the Multiline Terminal, becomes unusual, Alarm Indications cannot
be displayed.
Contents of Alarm
Alarm Indications
AC-DC Power
(PZ-PW121)
External Alarm
Display
Multiline Terminal
Alarm
MJ MN MJ MN MJ MN
System Initialization
XXXX——
Number of stack overflows was more than a fixed number
XXXXX
Note 2
X
Note 2
MP - FP/AP communication failure
XXXXX
Note 2
X
Note 2
FP/AP down
XXXXX
Note 2
X
Note 2
DTI line failure
XXXXX
Note 2
X
Note 2
DCH link failure
XXXXX
Note 2
X
Note 2
CCH link failure
XXXXX
Note 2
X
Note 2
Number of lockout stations was more than a fixed number
XXXXX
Note 2
X
Note 2
SMDR output buffer memory overflow
XXXXX
Note 2
X
Note 2
DLC failure
XXXXX
Note 2
X
Note 2
AC/DC power supply (PZ-PW121)
Note 1
•
AC input down
XXXXX
Note 2
X
Note 2
•
DC output down (+5V, –27V)
XXXXX
Note 2
X
Note 2
•
Fuse blown (+5V, –27V)
XXXXX
Note 2
X
Note 2
Alarm for pre-determined time
XXXXX X