User manual
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si 
555-230-127  
Issue 1
August 1997
Maintenance Object Repair Procedures 
Page 10-654EXT-DEV ADMIN? Y (External Device Alarm) 
10
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.
System Technician-Demanded Tests: 
Descriptions and Error Codes
Always investigate tests in the order presented in the table below when 
inspecting errors in the system. By clearing error codes associated with the 
Battery & Battery Charger Query Test,
 you may also clear errors generated from 
other tests in the testing sequence.
External Device Alarm Test (#120)
The External Device Alarm Test requests the state of the External Device Alarm 
from a Maintenance circuit pack and reports the results. The test has no effect on 
the external device itself.
1. D = Destructive; ND = Nondestructive
Table 10-220. EXT-DEV ADMIN? Error Log Entries and Test to Clear Values
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
Order of Investigation
Short Test 
Sequence
Long Test 
Sequence D/ND
1
External Device Alarm Test (MAJOR port) (#120) X X ND
External Device Alarm Test (MINOR port) (#120) X X ND
External Device Alarm Test (WARNING port) (#120) X X ND










