![background image](http://html1.mh-extra.com/html/yuan/sdi-switcher/sdi-switcher_user-manual_3653499013.webp)
1 : Channel 2
2 : Channel 3
3 : Channel 4
Audio
Source
81 AB 09 00 01 FF
81 00 0p FF
P : Audio Source Index
0 : Audio Channel 1
1 : Audio Channel 2
2 : Audio Channel 3
3 : Audio Channel 4
4 : Default ( Based on Input Source )
Audio
Mute
81 AB 0A 00 01 FF
81 00
01
FF
00 : Un-Mute
01 : Mute
Firmware
Version
81 AB 00 00 02 FF
81
00 03
00 01
FF
Firmware Version :
00 01
00 03
0.1.0.3
Installation
Switcher installation consists of the following: