Extron Electronics MLA VC10 Plus Setup Guide

MLA VC10 Plus • Setup Guide

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The Extron MLA VC10 Plus Volume Control Module converts RS-232 commands from a
control system into voltage or impedance changes to control audio amplifiers with volume
and mute control ports. The MLA VC10 Plus mutes or makes level changes on an Extron
MPA Series or half rack XTRA™ Series amplifier from a TouchLink™ Touchpanel system, an
RS-232-capable MediaLink® Control Processor, or a third-party control system. The control
module also supports third-party amplifiers that use either variable voltage or 10 kilohm
potentiometer control.

This setup guide provides instructions for quick installation and configuration of the
MLA VC10 Plus with Extron products or some common third-party amplifiers. Installation
and service must be performed by experienced installers only. For complete features,
functions, and configuration instructions, read the user guides that come with your control
processor and amplifier and see the MLA VC10 Plus User Guide, which is available at

www.extron.com.

Front Panel

a

b

c

MLA VC10 Plus

MUTE

RELAY

CONFIG

R

e

d

Power and Activity LED

a

Mute LED

b

Relay LED

c

USB Configuration Port

d

Reset Button

e

POWER

12V

0.3A MAX

CONTROL

OUTPUT

REMOTE

RS-232

Tx Rx GG GVC

V-DC

RELAY

NO NCC

R

Rear Panel

Power input

f

RS-232 Control

g

Variable Voltage Control

h

Resistance (Potentiometer)

i

Control

Relay Control

j

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MLA VC10 Plus • Setup Guide (Continued)

Application Diagram

CONTROL

OUTPUT

REMOTE

RS-232

POWER
12V

0.3A MAX

Tx Rx G G GV C

1

VCR

DISPLAY

ON

VOLUME

Extron
MLC 104 IP Plus

MediaLink
Controller

2

DVD

OFF

3

PC

4

CONFIG

MLC 104 IP PLUS

RS-232

RELAY

Extron
MLA VC10 Plus

NO NCC

R

Volume Control Module

V-DC

Variable
Impedance
Output

XPA 1002

1 2

LIMITER/PROTECT

SIGNAL
OVER
TEMP

Extron

Extron
SI 26

Surface-mount
Speakers

XPA 1002

Power
Amplier

Installation

Decide where the unit will be installed. Read the “Mounting” section of the MLA VC10 Plus
User Guide for mounting options.

NOTES: • The majority of amplifiers researched and tested by Extron work with

• To avoid picking up background noise in the cable, use shielded cable, such

the MLA VC10 Plus default settings as the unit is shipped, with no further
configuration needed.

as Extron STP 22 cable (see www.extron.com) and place the MLA VC10 Plus
as close as possible to the amplifier. The recommended cable length between
the MLA VC10 Plus and the amplifier should be six feet or less.

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