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.