In serial /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller_D-if00-port0
601 Yaesu GS-232A 20201203.0 Stable ROT_MODEL_GS232A
Steps:
$ sudo apt-get install libhamlib-utils
$ rotctl -m 601 -r /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller_D-if00-port0
Rotator command: p
Azimuth: 181.000000
Elevation: 132.000000
Rotator command: P 150 150
set_pos: error = Communication timed out
Rotator command: P 150 90
set_pos: error = Communication timed out
Rotator command: