Nortel CallPilot NN44200-700 Troubleshooting Manual page 38

38 Chapter 3 Hardware troubleshooting
MPB16-4 board troubleshooting
Trouble
The CallPilot Diagnostics
tool reports that all or some
of the DSPs have failed.
CallPilot starts up, but voice
services are not available.
CallPilot works, but
the voice quality
is low—T1/SMDI
configurations only.
CallPilot works, but
no voice services are
available—T1/SMDI
configurations only.
The Configuration Wizard
fails programming the
DSPs.
The system does not
read some MPC8 cards,
displays DSP errors or
hangs at login.
Copyright © 2007, Nortel Networks
.
Action
Ensure that the release of your board is 05 or later.
If you have more than one MPB16-4 board in the server, ensure that
the SCBus cable is present and properly connected.
You have more than one MPB16-4 board on your system. Ensure
that the DS30X cable is connected to the correct MPB16-4 board.
• Ensure that the release of the MPB16-4 board(s) is 05 or later.
• Ensure that the SCBus cable is not defective.
Ensure that the PEC of your MPB16-4 board(s) is NTRH20BA.
Note: The T1/SMDI systems do not work with CallPilot systems
equipped with NTRH20AB MPB16-4 boards.
• Ensure that the latest CallPilot PEPs are installed on your
system.
•
Ensure that no utility (such as Dspmon) that can access the
DSPs is running. The Nbhalnda utility (in the CallPilot tools)
cannot program DSPs accessed by more than one application.
• Check the MPC8 cards and replace the defective ones.
• Check the MPC8 socket pins on the carrier board and ensure
that they are not bent.
•
Ensure that the MPC8 cards are plugged in properly. Do not
force the MPC8 cards backwards in the slots.
Nortel CallPilot
Troubleshooting Reference Guide
NN44200-700 01.05 Standard
5.0 26 June 2007