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MikroTik App
 
rounin
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Posts: 21
Joined: Thu Mar 24, 2022 6:03 am

Forward serial from external RS232 port to LTE module

Tue Jan 24, 2023 2:11 am

Hi,

Is it possible to forward the serial traffic to and from the external serial port on an LtAP and the LTE module? Eg, send AT commands from the external RS232 port?

We're trying to get a LtAP certified on Verizon & have an auto-certification tester they provide, but the auto-cert tool wants to be able to send AT commands to the radio over RS232. I'm hoping there is some easy way to pass the external RS232 port to the LTE module.

Otherwise, I might write a little code to sit listening on the serial output of the ACP test box and forward the AT commands to the LtAP over the json API. Or maybe man-in-the middle the RS232 cable and turn it into command line at-chat commands / strip the responses down.
 
rounin
just joined
Topic Author
Posts: 21
Joined: Thu Mar 24, 2022 6:03 am

Re: Forward serial from external RS232 port to LTE module

Fri Jan 27, 2023 11:46 pm

Ended up with a bit of a Rube Goldberg machine, but it seems to be working.

Certification tester -> USB/serial cable + ethernet/serial bridge + python TCP/Mikrotik API bridge program on 2nd computer using json API & at-chat seems to work. We can run the automated test cases now.

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