Avaya S8700 Series, Maintenance Manual

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Maintenance-Object Repair Procedures
555-233-143 8-504 Issue 1 May 2002
DID-DS1 (Direct Inward Dial Trunk)
The DID-DS1 trunk provides a digital Direct Inward Dial (DID) trunk from a CO
switch to the system through a DS1 link. A 24-channel DS1 link can support up to
24 DID-DS1 trunk calls simultaneously. A 32-channel link can support up to 30. A
DID-DS1 trunk can be used for digitized voice and data communications with
appropriate DS1 signaling mode (for example, common-channel signaling). The
TN767 and TN464 series circuit packs support wink-start and immediate-start
trunks and Avaya MultiVantage ™ software signaling. See
‘‘DS1-BD (DS1
Interface Circuit Pack)’’ and ‘‘UDS1-BD (UDS1 Interface Circuit Pack)’’ on page
8-1707 for more information. Throughout this section, the term DS1 applies to
both the DS1 or UDS1 circuit packs.
Information included in this section covers the in-line errors log, initialization tests,
periodic tests, scheduled tests, system technician demand tests, and alarms
escalation and elimination. Two trunk service states are specified in the DID-DS1
trunk maintenance:
If a DS1 Interface circuit pack is out-of-service, then every trunk on the circuit
pack is put into the out-of-service state, and a Warning alarm is raised.
MO’s Name (in
Alarm Log)
Alarm Level
Initial SAT Command to
Run
Full Name of MO
DID-DS1 MAJOR
1
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. For more information, see
the set options command.
test trunk grp/mbr long Direct Inward Dial Trunk
DID-DS1 MINOR test trunk grp/mbr long Direct Inward Dial Trunk
DID-DS1 WARNING test trunk grp/mbr Direct Inward Dial Trunk
out-of-service
The trunk is in a deactivated state and cannot be used for
incoming calls.
in-service
The trunk is in an activated state and can be used for incoming
calls.