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We need to integrate GSM tracker to our system where there is no USB available. Is it possible to communicate with TMT250 tracker directly with serial or similar to skip USB port?

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Hello, 

Thank you for your inquiry.

Unfortunately this device will not work via UART. There should be USB attached for TMT250 to be able charge battery and configure device. TMT250 only connects directly with device using bluetooth and it can be configured as well using GPRS commands /Codec 12.

More information about TMT250  you can find in Teltonika Wiki Page: https://wiki.teltonika.lt/view/TMT250_General_description

Hope this will help.

Regards.

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Hi, anonymous.
If you already own a device, you can actually try to connect it to COM-port (?) using apropriate COM-USB converter. I think that it might work, cause I have read about such case on a forum, if I remember right.