Automatic Firmware Download - Paradyne COMSPHERE 3825Plus User Manual

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Firmware Download

Download Failure
Overview
This appendix points out basic problems that can occur
when operating a 3825Plus modem. Use Tables B-1
through B-6 to check out these problems. If you are
having data communication difficulties, such as periodic
character loss, random errors, or constant format errors,
use the loopback tests associated with the &T command.
With these tests you can usually isolate the fault in your
Symptom
Modem did not pass
power-up self-test
Power LED does not light
A problem is suspected
after the power-up self-test
3825-A2-GB30-20
Troubleshooting
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Table B-1
Modem Health
Contact the Customer Assistance Center (1-800-237-0016).
Make sure the modem's ON/Off switch is in the ON position.
Make sure the ac power transformer is connected to the ac power receptacle.
If the Power LED does not operate, contact the Customer Assistance Center.
Perform a self-test using the AT&T9 command.
Perform a local analog loopback with a Pattern test. If the modem consistently registers
errors, contact the Customer Assistance Center. errors contact the Customer Assistance Center
If the modem passes the above tests and a problem still exists, then the problem is likely
not with your modem.
November 1996
system by using the process of elimination. If problems
continue to occur, contact your service representative.
If you would like to download the latest 3825Plus
firmware from the Automatic Firmware Download
Center, see the instructions at the end of this chapter. If
you would like to copy the software in your modem to a
remote 3825Plus modem, see the &&P command in
Chapter 4.
Action
B
B-1
B-5
B-5
B-1