in - input number or '0' to disconnect output
> - connection character between in and out parameters
out - output number or '*' for all outputs
#AV 1>* | V 3>4, 2>2, 2>1, 0>2 | V 3>9 | A 0>1 | V? *
CR
1. Switch audio and video from input 1 to all outputs
2. Switch video input 3 to output 4,
video input 2 to output 2,
video input 2 to output 1 and
disconnect video output 2
3. Switch video input 3 to output 9 (non-existent)
4. Disconnect audio output 1
5. Get status of all video links
Command processing begins after entering CR
A response is sent for each command after processing