Avaya MCC1 Maintenance Procedures page 208

Troubleshooting
Troubleshooting ISDN-PRI
Figure 58: Troubleshooting ISDN-PRI (Page 1 of 2)
208
START
ARE THERE
YES
ALARMS OR ERRORS
AGAINST UDS1-BD OR
DS1-BD
NO
ARE THERE
ALARMS OR
YES
ERRORS AGAINST
ISDN-LINK OR
ISDN-SGR
NO
ARE THERE
YES
ALARMS OR
ERRORS AGAINST
ISDN-TRK
NO
TO
A
PAGE
2
DETERMINE PRESENT STATUS
OF DS-1 FACILITYVIA UDS1-BD
OR DS1-BD MO SECTION.
FOLLOW REPAIR PROCEDURES
IF MULITPLE ALARMS EXIST,
INVESTIGATE IN FOLLOWING
ORDER:
ISDN-LINK
ISDN-SGR
FOLLOW REPAIR PROCEDURE
FOR APPROPRIATE MO
FOLLOW REPAIR
PROCEDURE FOR ISDN-TRK
END
Maintenance Procedures
December 2003