Co-Ds1 (Ds1 Co Trunk) - Avaya Definity SI Maintenance Manual

CO-DS1 (DS1 CO Trunk)

CO-DS1 (DS1 CO Trunk)
Table 10-157.
MO Name (in
Alarm Log)
CO-DS1
CO-DS1
CO-DS1
1 A Major alarm on a trunk indicates that alarms on these trunks are not downgraded
by the set options command and that at least 75 percent of the trunks in this trunk
group are alarmed.
A DS1CO (central office) trunk provides a communications channel between the
system and a central office switch through either a 1.544 Mbps or a 2.048 Mbps
[G3iV2-386] DS1 link. A 24 channel DS1 link consists of 24 digital DS1CO trunks.
A 32 channel DS1 link [G3iV2-386] consists of 30 digital DS1CO trunks. A
DS1CO trunk can be used for both voice and data communication.
The DS1CO Trunk Maintenance provides a strategy in the system to maintain a
CO trunk via a port on the DS1 Interface circuit pack. The TN767 and TN464 DS1
Interface circuit packs support the low level CO trunk signaling interfaces,
ground-start and loop-start. This strategy covers the in-line errors log, initialization
tests, periodic tests, system technician-demanded tests, and alarm resolution and
escalation.
Three trunk service states are specified in the DS1CO trunk maintenance. They
are: out-of-service in which the trunk is in a deactivated state and cannot be used
for either incoming or outgoing calls; in-service in which the trunk is in an activated
state and can be used for both incoming and outgoing calls; disconnect
(ready-for-service) in which the trunk is in an activated state but can only be used
for an incoming call. If the DS1 Interface circuit pack is out-of-service, then all
trunks on the DS1 Interface circuit pack are also in the out-of-service state, and a
Warning alarm is raised for each trunk.
555-233-123
Alarm
Level Initial Command to Run
1
MAJOR test trunk <grp/mbr> l
MINOR test trunk <grp/mbr> l
WARNING test trunk <grp/mbr>
Full Name of MO
DS1CO Trunk
DS1CO Trunk
DS1CO Trunk
Issue 4 May 2002 10-419