User manual
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si 
555-230-127  
Issue 1
August 1997
Maintenance Object Repair Procedures 
Page 10-653EXT-DEV ADMIN? Y (External Device Alarm) 
10
EXT-DEV ADMIN? Y (External 
Device Alarm)
NOTE:
Use this Maintenance Object when the 
External Device Alarm Admin? 
field 
on the 
change system-parameters customer-options
 form is set to (y). You 
must have INADS or INIT login permission to administer EXT-DEV Alarm.
Generic 3i Maintenance circuit packs each have alarm leads which can be 
connected to external devices such as Uninterruptible Power Supplies (UPS) or 
adjuncts such as AUDIX. Certain conditions on the external device close the 
contacts on the alarm leads to notify the switch which in turn originates an 
EXT-DEV alarm.
The special locations UUmajor and UUminor are used to designate the major or 
minor maintenance board alarm connection for cabinet UU. The major/minor 
designation specifies the port, not the alarm level associated with the 
connection; 
for example, 
the “major” port can be administered as a major, minor, 
or warning alarm, and the “minor” port can be administered as a major, minor or 
warning alarm. In addition Analog line ports can also be administered as external 
device alarms.
NOTE:
An unadministered maintenance board external device alarm port, that is 
sensing a contact closure will have an entry in the Error Log and in the 
Alarm Log. INADS will not receive warning alarms.
In the Standard Reliability PPN the Maintenance Processor (TN786B or TN790) in 
carrier (A) monitors the EXT-DEV alarm leads. In the High or Critical PPN, the 
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.
MO Name (in 
Alarm Log)
Alarm 
Level Initial Command to Run Full Name of MO
EXT-DEV MAJOR test eda-external-device-alrm physical 
location
External Device Alarm
EXT-DEV MINOR test eda-external-device-alrm physical 
location
External Device Alarm
EXT-DEV WARNING test eda-external-device-alrm physical 
location
External Device Alarm










