Troubleshooting
6 - 9
Modem Module
Table 6-9
Troubleshooting the Modem Module
Symptom
Possible Cause
Action
MC919Z is not
communicating
through the
modem.
The modem cable is not
fully connected.
Connect the modem cable securely to both the modem and the
telephone jack.
Modem is not securely
connected to the MC919Z.
Reconnect the modem firmly to the MC919Z.
Communication software
is not installed or
configured properly.
Set up the communication software as described in the
Accessories
section of the
MC9190-G Integration Guide.
Problem in the telephone
lines.
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.
MC919Z’s battery is low or
discharged, which shuts
off power to the modem.
Install a charged battery in the MC919Z, or use an external DC
power adapter to recharge the battery.
ActiveSync
fails.
A partnership was not
established with the host
computer.
Establish a partnership with the host computer (refer to the
MC9190-G Integration Guide
).
Host computer is not
selected in the
ActiveSync
window on
the MC919Z.
Select a host computer in the
ActiveSync
window, and perform
setup (refer to the
MC9190-G Integration Guide
).
Modem RAS connection
not allowed by host
computer.
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.
MC919Z or modem was
disconnected from the
telephone line while
ActiveSync was in
progress.
Disconnect the modem cable for 30 seconds to hang up the local
telephone connection. Close any open windows on the MC919Z and
any modem connections.
Synchronization occurred,
but the session is
configured to close
immediately after
synchronization is
complete.
Verify the setting of the
When manually synchronizing
disconnect when complete
checkbox by tapping
Start
>
ActiveSync
>
Menu
>
Options
>
Schedule
tab.
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