Rs-232 commands, Control commands – Contemporary Research 232-Amp+W User Manual
Page 7
Contemporary Research
7
232-AMP+
RS-232 Commands
Control Commands
Code
Function
Operation
Level
You can skip leading zeros on values – so 5 can be 5, 05 or 005
VL=
Stereo input volume
0 (mute) to 63 (full)
VM
Stereo input mute on
Mutes input
VX
Stereo input mute off
Restores volume to previous level
VU
Ramp volume up
Starts volume ramping up
VD
Ramp volume down
Starts volume ramping down
VV
Stop volume ramp
Stops volume ramping
VT
Toggle Volume Mute
Alternates audio mute on and off
VG=
Amplifier Gain
Sets gain level
Sent alone returns amp gain status
0=20 dB (default)
1=26 dB
2=32 dB
3=36 dB
Inputs
Volume Parameter “Bump”
Send input volume parameter with 255 will bump value to next
step. Send parameter with 254 will bump value down one step
This allows wall panels that can’t send a volume ramp from
press and a ramp stop from release to just bump the level up
with each button press.
V0=
Stereo Input
Stated with
V0 alone will return status for Stereo
(xx)=Default setting
1=Volume level 1-63 (40)
2=Max gain level 0-63 (0-63, also acts as mute on/off)
3=Min gain level 0-63 Fixed at 0, variable in future
4=Power On Threshold 0-63 (4)
5=Power On Hold delay 0-99 seconds (99) 0=Always On
Ex: ‘>V0=1,30’
V1=
Mono 1
Stated with
V1 alone will return status for Input 1
Input 1 always has priority for ducking
(xx)=Default setting
1=Volume level 0-63 (40)
2=Max gain level 0-63 (0-63, also acts as mute on/off)
3=Min gain level 0-63 (Fixed at 0), variable in future
4=Gating threshold level 1-63 (10)
5=Gating hold time 0-50 in 0.1 seconds (15)
00=Ducking off, acts as mixed input
6=Ducking level for the stereo input 0-63 (10)
Example: ‘>V1=1,20 V1=4,03 V1=5,10 V1=6,05’
V2=
Mono 2
Stated with
V2 alone will return status for Input 2
(xx)=Default setting
1=Volume level 0-63 (40)
2=Max gain level 0-63 (0-63, also acts as mute on/off)
3=Min gain level 0-63 (Fixed at 0), variable in future
4=Gating threshold level 1-63 (10)
5=Gating hold time 0-50 in 0.1 seconds (15)
00=Ducking off, acts as mixed input
6=Ducking level for the stereo input 0-63 (10)
SV
Amp Status
Returns Amp/Stereo status string