User`s guide

Troubleshooting
Common problems and their solutions
Pipeline User’s Guide Preliminary January 30, 1998 D-3
The first channel of an MP+ call connects, but then the call clears or does
not connect on the remaining channels
The most common error in defining Connection profiles is specifying incorrect
phone numbers. The Pipeline cannot successfully build inverse multiplexing or
MP+ calls if the phone numbers in the Connection profile of the called unit are
incorrect. The phone numbers that you specify in the Connection profile are the
numbers local to your unit. Do not enter the phone numbers of the Pipeline you
are calling in the Connection profile.
When the Pipeline tries to place a call, the error message No Channel Avail
appears in the Message Log display
Check the configuration of your line in the Configure profile.
Hardware configuration problems
If you cannot communicate with the Pipeline through the VT-100 control
terminal, you might have a terminal configuration, control port cable, or Pipeline
hardware problem.
No data is displayed on the VT-100
If the Pipeline is in this state, verify that the unit completes all of the power-on
self tests successfully by following these steps:
1
Verify that the Pipeline and your terminal are set at the same speed.
2
Locate the LED labeled CON.
3
Switch on the Pipeline.
The CON LED should remain off except during the power-on self tests. If
you are using the Control Monitor, type Ctrl-L to refresh the screen.
If the CON LED remains on longer than a minute, there is a Pipeline
hardware failure. A blinking CON LED also indicates a hardware failure.
Should these situations arise, contact Ascend Communications, Inc.
Customer Support.
The CON LED is off, but no data is displayed on the Control Monitor's VT-