ARTHUR HOLM DynamicSpeaker User Manual page 20

AHNET PROTOCOL
AHnet protocol
Uses 5 bytes communication:
BYTE 0
BYTE 1
BYTE 2
BYTE 3
BYTE 4
Commands
COMMAND
FA XX 01 01 00
FA XX 01 00 00
FA XX 04 01 00
FA XX 04 00 00
FA XX 09 01 00
FA XX 09 01 00
FA XX 09 02 NN
FA XX 14 00 00
XX Number of the device address. Up to 30 devices for each
RS422 BUS
CB1 Response in 8 bites of the device status
CB2 Response in 8 bites of the device status
20
START BYTE
ADDRESS BYTE
COMMAND BYTE
VALUE 1
VALUE 2
DESCRIPTION
OPEN
CLOSE
BUTTON LOCK
BUTTON UNLOCK
MUTE
UNMUTE
AUDIO GAIN NN=(00:0dB, 46:-
INQUIRY CONTROL BYTE
RESPONSE
FB XX 01 01 00
FB XX 01 00 00
FB XX 04 01 00
FB XX 04 00 00
FB XX 05 00 00
FB XX 14 CB1 CB2