Default serial baud rate

What is the default serial mode (and baud) for communicating with the Maestro controller over the serial Tx/Rx connections? I don’t happen to have a micro USB to connect to the controller and check/modify these settings, but am anxious to get started playing with the controller. I assumed the default serial mode was “UART, detect baud rate” but this doesn’t seem to be working for me.

The documentation mentions that the maximum baud rate is 250,000 bps. Was is the range of bauds that can be auto detected? Is there a minimum detectable rate?

I am sending the “Get Errors” command to just confirm two-way communications is working, but I get no response. I send the three integers: 170, 12, 19. I expect back two integers: 0, 0.

Thanks -