Network Technologies SM-8X4-HDA - Manual (Page 25)

NTI AUDIO/HD VIDEO MATRIX SWITCH
21
AR- Read Mute and Volume for Audio Output Port
Command:
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
‘A’
(0x41)
‘R’
(0x52)
Space
(0x20) Output – first digit
(0x30…0x32)
Output – second digit
(0x30…0x39)
<CR>
(0x0D)
Response:
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9
‘a’
(0x61)
‘r’
(0x72)
Space
(0x20) Output – 1st digit
(0x30…0x32)
Output – 2nd digit
(0x30…0x39)
‘,’
(0x2C)
‘0’
(0x30)
Mute Status
(0x30 or 0x31)
‘,’
(0x2C)
Byte 10 Byte 11 Byte 12
Volume – 1st digit
(0x30…0x32)
Volume – 2nd digit
(0x30…0x39)
<CR>
(0x0D)
This command will read the volume and mute status of the desired audio output port. The response returns the audio output port
and its mute status and volume.