User Guide Modem 3460

3460 Fast’R
5-2
Troubleshooting Actions
The following table provides troubleshooting actions and tips.
Table 5-1. Troubleshooting the 3460 Fast’R Modem
Problem Diagnosis/Test Possible Solution
INSTALLATION
Modem won’t
power up
Check the power
source and the modem
power switch.
Ensure the outlet is active. Turn
on the power switch.
Modem fails
self test
Turn modem power
off; wait 15 seconds;
then turn power on.
Use the Return Procedures in
this manual to return the modem
to Motorola.
AUTOMATIC CALL UNIT (ACU) CONFIGURATION
No response to
ACU command
Use Fast’RVu or off-
line configuration
(OLC) button to check
parameters. Check
options:
• DTE Rate (AT
*
DE)
•Form
• Char Length
• Parity (AT
*
RP)
• Result Code (ATQ)
Use Fast’RVu or off-line
configuration (OLC) button to
ensure ACU is compatible with
modem configuration.
Ensure that the computer is set
to a valid character format to
operate the modem’s autobaud
feature.
If modem still does not respond,
perform a local analog loopback
(LAL) test.
If LAL fails, contact Motorola
customer service.
Double echo on
characters
typed
Check computer and
modem’s Echo (ATE)
option.
If both have Echo=On (ATE1),
turn one off (ATE0). (Echo is
also known as half- or full-
duplex.) If this does not solve
the problem, contact Motorola
customer service.
Check the
communications
software’s terminal
setup.