Maintenance Object Repair Procedures
555-233-123
10-1372 Issue 4 May 2002
FAIL MTP reported test failure. No loop current detected. The
following steps apply to either an internal or external modem
( Some additional steps apply to an external modem only).
1. Retry at 1-minute intervals a maximum of 5 times.
2. For an external modem, if the test continues to fail:
a. If Test #230 failed, use the external modem
recommendations listed in Test #230.
b. If Test #230 passes, the MTP most likely received a
NO DIAL TONE response to the ATD command sent
from the MTP. This problem is between the modem
and the INADS trunk.
3. Examine the INADS trunk for connectivity, and manually
check for loop current.
4. If there is no INADS trunk, this test should be disabled.
To disable the test, issue change system-parameters
maintenance, and change the Test Remote Access Port
field to “n.”
5. If the INADS trunk checks out okay, but the test still fails,
check the backplane connector wiring.
6. If the backplane wiring checks out okay, replace the
Processor circuit pack.
NOTE:
If you replace the Processor circuit pack, you
need to obtain a new license file.
PASS MTP detected a loop current on the remote access port.
1. If the system cannot call INADS, or INADS cannot
contact the system, check with the local Central Office
for problems with the INADS trunk, and verify that the
INADS number is correct. Approved external modems
with factory default settings are expected to work if
administered correctly using change
system-parameters.
Table 10-507. TEST #102 MTP Outpulse Relay Test — Continued
Error
Code Test Result Description/Recommendation
Continued on next page
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