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TIE-DS1 (DS1 Tie Trunk)
Issue 4 May 2002 10-1751 555-233-123
DS1 Tie Trunk Seizure Test (#136)
The DS1 Tie Trunk Seizure Test is run to verify the trunk’s signaling capability. The
test is composed of two parts. The first part queries the circuit pack for the
following errors: Loss of Signal, Red Alarm, Blue Alarm, Yellow Alarm, and
Hyperactivity Alarm. The second part of the test is performed by sending a seizure
message to the DS1 Interface circuit pack and expecting an active reply by the
DS1 Interface circuit pack. If maintenance software does not receive any reply
and the timer expires, the test is aborted. Once the active message is received, a
dial pause message is sent to the DS1 Interface circuit pack. If the DS1 Interface
circuit pack replies with a dial pulse tone message when the far end responds to
the seizure, then the DS1 tie trunk Seizure Test passes. If the far end does not
respond to the seizure and the timer expires, and the DS1 Interface circuit pack
sends a reorder message back to the maintenance software, then the test fails.
This second part of this test CANNOT be run on a trunk if one of the following
cases is true:
1. The trunk direction is administered as an incoming only trunk.
2. The trunk is the 24th port on a DS1 Interface circuit pack which is
administered using 24th Common Channel Signaling.
3. The trunk has been seized by a normal trunk call.
4. The trunk is administered with maintenance test disabled.
5. The outgoing signal type of the trunk is either automatic or immediate-start.
Table 10-645. TEST #136 DS1 Tie Trunk Seizure Test
Error
Code Test
Result Description/Recommendation
ABORT Internal System Error.
1000 ABORT System resources required to run this test were not available.
The port may be busy with a valid call. Use display port
UUCSSpp to determine the trunk group/member number of the
port. Use status trunk to determine the service state of the
port. If the service state indicates that the port is in use, then
the port is unavailable for certain tests. You must wait until the
port is idle before retesting.
1. If the port status is active but the port is not in use (no
calls), check the error log for error type 1025 (see the error
log table for a description of this error and required
actions). The port may be locked up.
2. If the port status is idle, retry the command at 1-minute
intervals for a maximum of 5 times.
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