This python script is a useful tool for applying batch changes to any number of Extron devices without manual login and configuration. Using SSH or Telnet, the host is able to login remotely, adjust the volume levels, and setup a multicast stream in seconds.
Below is a copy of the Extron Documentation used to find the correct hex commands:
https://media.extron.com/public/download/files/userman/68-2231-01_B.pdf