Extron electronics | VC 50 | Remote Connector Pin Configuration Audio Level Setting Procedure

VC 50
The Extron VC 50 is a remote volume controller designed to work with the Extron PoleVaultâ„¢
switcher (PVS 204SA with amp), the MLP (Mic to Line Pre-amplifier), and the MPA series
audio amplifiers (e.g. MPA 122).
Mounted into standard one-gang wall box or mud ring, the VC 50 has a rotary volume control
knob, which provides easy adjustment and ensures precise volume levels.
Captive screw connectors on the back panel provide quick and easy connectivity.
Remote Connector Pin Configuration
Extron
MPA, PVS, MLP
units
As shown at right,
Pin 1 is reference voltage.
Pin 2 is volume control with DC voltage.
Pin 3 is ground.
N All nominal levels are at ±10%.
For proper volume control, use all three pins when
connecting the device (see diagram).
1
10V
2
VOL
Ground
Black
Red
3
Extron
STP 22
VOL
Audio Level Setting Procedure
10V
To set the system level not to exceed the maximum volume when
using the VC 50, do the following:
Cable
1. Reduce the power amplifier volume to minimum.
VOLUME
2. Turn the Volume knob on the VC 50 to the maximum position.
3. Slowly turn up the power amplifier volume to the maximum
undistorted sound level allowed for the application.
VC 50
As shown below with the MPA 122 Mini Power Amplifier, the Extron VC 50 serves to remotely
control volume levels for Extron audio amplifiers.
2
12
MPA UTS
TP
OU hms
O
4/8
US
C
UTS
REM
INP
R
L
OTE
R
Extron
MPA 122
Mini Power
Amplifier
L
E
V
10 MUT
L/
VO
L
WER
PO
R
Audio
Output
M
LU
VO
E
Extron
VC 50
50
VC
Remote Volume
Controller
Projector
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68-1154-01
Rev. B
10 08
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