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) (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) (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.