Modem Module - Motorola MC909X Integrator Manual

10 - 12 MC909X Integrator Guide

Modem Module

Troubleshooting the Modem Module
Table 10-10
Symptom
Mobile
computer is not
communicating
through the
modem.
ActiveSync
fails.
Possible Cause
The modem cable is not
fully connected.
Modem is not securely
connected to the mobile
computer.
Communication software
is not installed or
configured properly.
Problem in the telephone
lines.
Mobile computer's battery
is low or discharged,
which shuts off power to
the modem.
A partnership was not
established with the host
computer.
Host computer is not
selected in the ActiveSync
window on the mobile
computer.
Modem RAS connection
not allowed by host
computer.
Mobile computer or
modem was disconnected
from the telephone line
while ActiveSync was in
progress.
Synchronization occurred,
but the session is
configured to close
immediately after
synchronization is
complete.
Connect the modem cable securely to both the modem and the
telephone jack.
Reconnect the modem firmly to the mobile computer.
Set up the communication software as described in the mobile
computer's Product Reference Guide.
Connect a conventional telephone and dial the remote modem to
verify the telephone lines are functioning. If the remote modem does
not answer the call and emit answering tones, contact the remote
System Administrator.
Install a charged battery in the mobile computer, or use an external
DC power adapter to recharge the battery.
Establish a partnership with the host computer (see
Accessories).
Select a host computer in the ActiveSync window, and perform
setup (see Chapter 2, Accessories).
Select RAS connection in the host computer (File - Connection
Settings window). Refer to the ReadMe files located in the Microsoft
ActiveSync folder on the host computer.
Disconnect the modem cable for 30 seconds to hang up the local
telephone connection. Close any open windows on the mobile
computer and any modem connections.
Verify the setting of the When manually synchronizing disconnect
when complete checkbox by tapping Start - ActiveSync - Tools -
Options - Schedule tab.
Action
Chapter 2,