Issue
RAM Remote Alarm Manager message: Alarm on GSM modem - Unable to reset GSM modem - modem did not accept reset command
Environment
Sigma
RAM
Windows 7
64bit
Cause
Infrequently a GSM modem interface message is generated and the modem stops working.
The GSM modem is using a serial PCI / PC express card.
Resolution
The modem fails to respond to the reset command.
Firstly try to resolve by checking the modem type and set up, including (in the "Advanced" tab) extending the number of re-tries and time to respond.
If issues continue then a possible work around is to try a USB to serial RS232 adaptor.
Ensure the driver used for the USB to serial device is for the device. e.g. StarTech FTDI USB to Serial RS232 Adaptor (part no. ICUSB2321FIS) uses the FTDI driver and not the Prolific driver.
In the Windows > Device Manager, a serial com port is created assigned to the USB device, assign the GSM modem to this com port in RAM.
