Co-Ds1 (Ds1 Co Trunk) - Avaya DEFINITY Server CSI Maintenance Manual

Maintenance Objects

CO-DS1 (DS1 CO Trunk)

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 TN767B or later and
TN464C or later 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:
1. out-of-service: The trunk is in a deactivated state and cannot be used for
either incoming or outgoing calls.
2. in-service: The trunk is in an activated state and can be used for both
incoming and outgoing calls.
3. disconnect (ready-for-service): 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, 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.
898
Issue 5 October 2002
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
555-233-119