Data
Command
Content
Standby
00
– Standby A OFF
01
– Standby A ON
02
– Standby B OFF
03
– Standby B ON
04
– Toggle standby A
05
– Toggle standby B
06
– Standby A & B OFF
07
– Standby A & B ON
Mute
00
– Mute
01
– Un-mute
02
– Toggle Mute
Source
Selection
00
– Select CD
01
– Select Tape
02
– Select Tuner
03
– Select Auxiliary
04
– Select Mono utility input
05
– Select SAT
06
– Select DVD
07
– Select Video
Volume
00 – A0
range
Bass
F4 – 0C
(-12db - +12db)
Treble
F4 – 0C
(-12db - +12db)
Balance
EC – 14
(Left –20db – Right –20db)
Amplifier
features
00
– Loudness enabled
01
– Loudness disabled
Volume Limit
00 – A0
range
Preset
00
– Standard mode
11
– Force Preset
Track Zone
00 – 31
zone to be tracked
FF
– for no zone tracking
Notes:
•
Commands are used as notifications. If an amplifier is switched ON, it will notify the other
devices on the Axium Bus by sending the Standby command (01). Any amplifiers with the
same zone will take the notification as a command and also switch ON.
•
When a command is sent to an amplifier it will first be transmitted on the Axium bus and
then returned to the PC (Home automation system). If an error occurs an error will be
returned instead of the original command. The PC (Home automation system) needs to
ignore its command when it is returned.
•
A Standby ON command implies that the amplifier is not muted, if the amplifier was
previously OFF. A Mute command must follow the Standby command if it is muted.
•
If on an
AX4752
two pairs of zones are linked i.e. zones 1 & 2 and zones 3 & 4, and a
‘Link Zone’ command is sent that links zones 2 & 3, then the receiving amplifier knows the
following implications:
-
Zone 3 also links to zone 2
-
Since zone 3 is no longer linked to zone 4, zone 4 shall no longer be linked to zone 3
-
Since zone 2 is no longer linked to zone 1, zone 1 shall no longer be linked to zone 2
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