Extron Electronics VC 50 User Manual

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POWER

OUTP

UTS

4/8 Ohms

INPU

TS

L

R

L

R

REMO

TE

10V
VOL/MUTE

L

MPA 122

R

C

US

Projector

Audio
Output

Extron
VC 50

Remote Volume
Controller

VC 50

VOLUME

Extron
MPA 122

Mini Power
Amplifier

VC 50

VC 50

VOLUME

Extron
STP 22

Cable

VOL

10V

Red

Black

Ground

Extron

MPA, PVS, MLP

units

10V

1 2 3

VOL

The Extron VC 50 is a remote volume controller designed to work with the Extron PoleVault
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

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%.

Audio Level Setting Procedure

For proper volume control, use all three pins when
connecting the device (see diagram).

To set the system level not to exceed the maximum volume when
using the VC 50, do the following:

1. Reduce the power amplifier volume to minimum.

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.

™

As shown below with the MPA 122 Mini Power Amplifier, the Extron VC 50 serves to remotely
control volume levels for Extron audio amplifiers.

68-1154-01

Rev. B

10 08