Thank you for your answer, it means that I can use the TMT250 with Traccar, which is basically what I wanted to know.
> So you should register it under "FMBXXX" family @ Traccar and specifically FMBXXX -> TMT250 if they have such.
They don't yet, but that can be fixed.
> TMT250 has some unique IO elements which are available only for TMT250 device.
Is there a specification somewhere, that I pass to the Traccar developers or use it myself to create full support for the TMT250?