DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1738TIE-DS1 (DS1 Tie Trunk)
9
DS1 tie trunk maintenance provides a strategy to maintain a DS1 tie trunk via a
port on either the TN722 or TN767 DS1 Interface circuit pack or the TN464C/D
UDS1 Interface circuit pack. Throughout this TIE-DS1 section, the term DS1
Interface applies to DS1 and UDS1 circuit packs.
The DS1 tie trunk maintenance strategy covers logging DS1 tie trunk hardware
errors, running tests for trunk initialization, periodic and scheduled maintenance,
system technician-demanded tests, and alarm escalation and resolution. Three
different trunk service states are specified in DS1 tie trunk maintenance:
If the DS1 Interface circuit pack is out of service, then all trunks on the DS1
Interface circuit pack are also placed into the out-of-service state and a Warning
alarm is raised.
Out-of-service The trunk is deactivated and cannot be used for incoming or
outgoing calls.
In-service The trunk is activated and can be used for both incoming
and outgoing calls.
Disconnect
(ready-for-service)
The trunk is in an activated state but can only be used for an
incoming call.
