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Communication with superior system has been broken. The cause can be an error in the network connections, damaged cable, defective monitoring system, etc.
Action: • Contact the supplier of the monitoring system for possible causes of the monitoring system not communicating.
You usually get a Comm error due to poor performance of your phone line. Check for any visible issues with the phone line. Check whether the jack is plugged in properly and the wire is not cut.
If you are sharing the phone line then check that any other devices are not interferrring in device's performance. Disconnect any other equipment on the telephone line, i.e. answering machine, modem, extra telephones, switching devices, adapters, etc. Make sure the telephone line is connected directly from the jack (socket) on the Brother machine labeled "Line" to the telephone wall jack (socket).
There may be a problem with the way the Brother machine is connected or you may have a bad telephone line. Try resending again. If the transmission is successful, the problem was created by the connection of the Brother machine and the other devices on the line. Reconnect the other pieces of equipment one at a time to see which is causing the problem. If the error continues to appear on the report, try connecting the Brother machine to a different telephone line or have the line checked by the telephone company.