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Issue 5 October 2002
DID-DS1 (DS1 DID Trunk)
The DID-DS1 trunk provides a digital DID trunk from a CO switch into the system
through a DS1 link. A 24 channel DS1 link can support up to 24 DID-DS1 trunk
calls simultaneously. A 32 channel DS1 link can support up to 30 DID-DS1 trunk
calls simultaneously. A DID-DS1 trunk can be used for both voice and data
communications with appropriate DS1 signaling mode (for example, common
channel signaling). Only the TN767 and TN464 DS1 Interface circuit packs
support the DID-DS1 trunk call processing signalings, wink-start, and
immediate-start.
DID-DS1 trunk maintenance provides a means to maintain a DID trunk on a port
of DS1 Interface circuit pack. Information included covers the in-line errors log,
initialization tests, periodic tests, system technician demand tests, and alarms
escalation and elimination. Two trunk service states are specified in the DID-DS1
trunk maintenance. They are: out-of-service, the trunk is in a deactivated state
and can’t be used for incoming calls; in-service, the trunk is in an activated state
and can be used for incoming calls. If the DS1 Interface circuit pack is
out-of-service, then all trunks on the DS1 Interface circuit pack are put into
out-of-service state and a Warning alarm is raised.
Hardware Error Log Entries and Test to Clear
Values
MO Name (in
Alarm Log)
Alarm
Level
Initial 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.
test trunk <grp>/<mbr> l
Direct Inward Dial Trunk
DID-DS1
MINOR
test trunk <grp>/<mbr> l
Direct Inward Dial Trunk
DID-DS1
WARNING
test trunk <grp>/<mbr>
Direct Inward Dial Trunk
Table 184.
DID-DS1 Error Log Entries
Error
Type
Aux
Data
Associated Test
Alarm
Level
On/Off
Board
Test to Clear Value
0
1
0
Any
Any
Any
test trunk <grp>/<mbr> sh r 1
1 (a)
Any
15 (b)
Any
Port Audit and
Update Test (#36)
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