I’m having a problems communicating with my SL50101 Rev. 1.0, firmware p3110503. I can connect to it using Watcher (R126.96.36.199 - device Driver USB MUX R188.8.131.52). However, I cannot communicate via terminal emulator either through the USB interface or UART under Windows XP.
Under device manager I can see the following devices:
- Sierra Wireless Modem
- Ports (COM & LPT)
- Sierra Wireless CnS Port (COM15)
- Sierra Wireless DM Port (COM14)
- Sierra Wireless NMEA Port (COM16)
Using a USB monitoring program I can see ‘AT’ data on the “Sierra Wireless Modem” port when I use Watcher to make a data connection.
Using a terminal emulator I can send AT commands to the SL5011 on the CnS and DM ports but I do not receive anything back from the module. I can verify that the data is being sent using the USB monitor.
I’ve also tried connecting to the UART pins and get no response on that port either.
Is this a driver issue, or do I need to do something with the SL5011 to enable communications?