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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-714EXT-DEV ADMIN? Y (External Device Alarm)
10
Duplication Interface (TN772) circuit pack in carrier (A) monitors the EXT-DEV
alarm leads, and provides the status to the Maintenance processor (TN786B or
TN790) in the active SPE. In the EPN the Maintenance Board (TN775) monitors
the EXT-DEV alarm leads. The system only recognizes pairs connected to the 1M
and 1m (ALARM MONITOR) leads. Pairs connected to the 2M, 2m, 3M, 3m, and
3w are not recognized by the system. Refer to the
DEFINITY Communications
System Generic 1 and Generic 3i Wiring,
555-204-111, for more details.
Hardware Error Log Entries and Test to Clear
Values
NOTE:
The loss of -48 volt power will prevent detection of an external device
alarm. AC-POWER, CARR-POW, and DC-POWER alarms could indicate the
loss of the external device alarm -48 volt power source. ALARM-PT alarms
may also indicate a loss of power. When analog line ports are administered
as analog line external device alarms loss of -48 volts will prevent detection
of an external device alarm.
Table 10-202. Hardware Error Log Entries and Test to Clear Value
Error
Type
Aux
Data Associated Test
Alarm
Level
On/Off
Board Test to Clear Value
0 0 Any Any Any test eda-external-device-alrm
physical location r 2 or 6
1 or 5 Any External Device
Alarm Test (#120)
Any OFF test eda-external-device-alrm
physical location r 2 or 6