Troubleshooting

 

 

 

 

Symptom

Troubleshooting Tips

 

Modem keeps

Check the signal strength and signal

 

dropping connection.

quality icon to be sure the signal is not

 

 

weak or poor.

 

 

 

 

Modem does not

Make sure that:

 

respond to hang-up

The Drop DTR on Hang-up is enabled

 

command from the

 

in the communication software.

 

software’s command

 

 

 

mode.

The hang-up string setting is

 

 

‘+++ATH’.

 

 

 

 

Computer screen

Turn off Auto Baud by initiating AT+IPR

 

appears distorted.

command. Make sure that the baud rate

 

 

setting in your communication software

 

 

matches the baud rate setting of the

 

 

modem.

 

 

 

 

No characters are

Turn on Local Echo by initiating the ATE1

 

displayed on the

command.

 

computer screen

 

 

 

 

 

Images

Ensure that the RTS/CTS flow control is

 

transmitted/received

enabled in the communication software

 

are of poor quality.

and is set to &K3.

 

 

 

Error Messages

The following table outlines error messages that you may receive when sending or receiving data. These error messages will appear on the computer screen

Message

 

Explanation

ERROR

The command was not recognized.

 

The command line maximum length

 

 

was exceeded.

 

 

 

RFM-4002-5015 Rev 3

 

93

Page 103
Image 103
Nextel comm IR1200 manual Error Messages, Message Explanation