Cellular Modem Trouble Shooting

If there is a problem with the signal strength:

Cell Modem Card Location

Line Modem Card Location

The modem has to be placed in a way that ensures sufficient signal strength.

• To improve signal strength, the antenna can be moved to another position. Signal strength may depend on how close the modem is to a radio base station. You must ensure that the location, at which you intend to use the modem, is within the network coverage area.
• Reboot through unplugging the power.

1. If signal does not improve, insert the SIM card into a cell phone and check the signal (GSM only).

2. If the signal is weak, check with your service provider.

3. If the signal is OK, change the module.

4. If no signal exists:

• Check antenna connection.
• Check connection to the module (GSM).
• Check the wiring. If there is a problem, contact the dealer.

Refer to the appropriate section in the manual, Appendix A: Replacing communication cards and modems, for detailed instructions on exchanging the modem.

• Text test failure in menu (refer to Testing the text function).

The modem has to be placed in a way that ensures sufficient signal strength. To improve signal strength, the antenna can be moved to another position. Signal strength may depend on how close the modem is to a radio base station. You must ensure that the location, at which you intend to use the modem, is within the network coverage area