0049-0100-XX2 MIU9.6FPD – USERS GUIDE
06/22/2010
Rev. A
Page 15 of 25
APPENDIX A – TROUBLESHOOTING
In the unlikely event you encounter a problem using the MIU9.6FPD, refer to the troubleshooting
information in this appendix.
PROBLEM
SOLVING
Table A-1 offers troubleshooting solutions for modem problems.
Table A-1. Troubleshooting Suggestions
If…
Perform These Procedures…
The modem does not respond to the
attached DTE and all LEDs are off.
Check the power supply input for your specific
model.
The modem does not receive data and
the green LED on the front panel
does not blink.
The receive line pair may be disconnected from
the modem or polarity may be reversed. Make
sure the transmission line connection to the
modem is accurate and secure.
The modem does not transmit data
and the red LED on the front panel
does not blink.
The attached terminal or DTE may not be
sending data to the modem. Verify that data is
being transmitted.
If data is being transmitted, make sure the RS-
232 cable is sound and securely connected to
the modem and terminal or DTE.
All LEDs on the modem module are
working, but the attached computer
does not work or the modem receives
data errors.
Verify all switch settings on the modem.
Make sure the modem and computer are
configured for the same operating speed.
If necessary, perform the loopback test.
The baseboard jumper and switches
have been changed from their factory
settings.
See “Baseboard Module Configuration
Settings.”