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Move from MC55i to PLS62T-W USB via RS232. What is the difference? | Telit Cinterion IoT Developer Community

January 22, 2023 - 11:45pm, 283 views

I used the Cinterion MC55i terminal via RS232 for years to send and receive SMS messages. After opening the COM-port I started with AT+CFUN=1 and went on from there.

Now I replaced the MC55i with a Cinterion PLS62T-W USB terminal, also connected via the RS232-port to the RS232-port of the Windows-PC as before.

After opening COM1 I sent AT+CFUN=1 and was hoping it would work.....
But no, no response. Nothing at all. Also not an error. Just nothing.

So obviously something is different between the 2 terminals.
I have to start different or have to configure something first.

Can somebody give me a push in the right direction?

Thank you.
With kind regards,
Simon Uitendaal