USB Commands
The USB commands are structured so that an application program
on the PC can communicate with the Avalon effectively. These
commands are also human readable text, which may help in
troubleshooting and testing.
The main concept to understand is that to the USB port, the Avalon
matrix looks like two independent switches, a video switch and an
audio switch. The video switch is referred to as Board #1 or B1,
22
Avalon Matrix Switch User's Guide (document number 42-00001-A)