8
Some commands are read or write only – for example, mute all is a write only
command, whereas version is a read only command.
n = numerical ascii value, where needed (“all” commands do not require)
# = second numerical ascii value
[] = optional command, do not include square brackets in actual command
Function
Command
Range
Read/Write
Version
(vr?)
none
read only
Reset
(rx)
none
write only
Channel On
(non)
n = 1-6
write only
Channel Off
(nof)
n = 1-6
write only
Mute
(nmu)
n = 1-6
write only
Unmute
(num)
n = 1-6
write only
Mute All
(amu)
none
write only
Unmute All
(aum)
none
write only
Vol
(nvl [? Or ## ])
n = 1-6
read or write, note 1
## = 0-80
Vol All
(avl##)
## = 0-80
write only
Input Select
(nsl#)
n = 1-6
write only
# = 1-7
Input Select All
(asl#)
# = 1-7
write only
Bass
(nb#)
n = 1-6
# = 0-F
write only, hex
Treble
(nt#)
n = 1-6
# = 0-F
write only, hex
Note 1: Read on Volume returns decimal value
RS232 Sample Command String
Audio out of Channel 1, Input source 7, Volume = 35, Bass Up, Treble Down, from
“off”.
(1on)
turn on channel 1
(1um)
unmute channel 1
(1sl7)
select input 7 to channel one
(1vl35)
set volume to 35
(1ba)
turn bass to Hex value “A”, which is Decimal 10
(1t4)
turn treble to Hex value “4”, which is also Decimal 4
