MLA VC10 Plus

Volume Control Module

Key Features

Converts RS-232 commands to contact closure, voltage, and impedance changes for remote amplifier volume control
Volume and mute control for the MPA Series and select XTRA™ Series amplifiers, and a wide range of commercial amplifiers
For MediaLink^® Controllers with RS-232, TouchLink^®-based systems, and other control systems
Ground isolated, digital circuitry prevents noise in signal path
Soft Start volume ramping gently restores volume levels during power cycles and unmuting
Selectable volume taper provides a consistent linear or natural logarithmic feel to volume changes

Model	Version Description	Part #
MLA VC10 Plus	Volume Control Module	60-1090-01

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 is used to mute or make level changes on an MPA Series or half rack XTRA™ Series amplifier from a TouchLink^® Touchpanel system, an RS-232-capable MediaLink^® Controller, or other control system. The control module also supports third-party amplifiers that use either voltage or 10k ohm pot control. The MLA VC10 Plus is housed in a 1U, one-eighth rack width metal enclosure for numerous installation options. The MLA VC 10 Plus can be powered by an optional power supply, or from the power supply used for a MediaLink Controller or IPL Series Ethernet Control Interface.

Commercial power amplifiers with volume and mute control capability often are not equipped for RS-232 or Ethernet control. The MLA VC10 Plus bridges the gap between these amplifiers and MediaLink and TouchLink control systems by providing a convenient means to adjust volume and muting. It offers variable voltage and resistance outputs to control volume, plus a dual mode relay port that provides contact closure for muting the amplifier.

The MLA VC10 Plus features Soft Start volume ramping which slowly increases the amplifier’s volume to the previous level when powering up or when the module is unmuted. Soft Start prevents sudden, loud bursts of sound that can damage equipment or harm the listener’s hearing. A mini USB port on the front panel provides convenient access for device configuration. LEDs on the front panel indicate power and mute status, plus relay activity to facilitate setup and troubleshooting. The MLA VC10 Plus also includes an Inverse Mode for amplifiers that require a decrease in control voltage or resistance in order to increase volume. For integration convenience, the control module can be configured using the included Data Viewer software.

Features

Converts RS-232 commands to contact closure, voltage, and impedance changes for remote amplifier volume control

Inputs: Bidirectional RS-232 control on 3-pole captive screw connector

Outputs: Dual mode relay, wiring selectable as Normally Open or Normally Closed, on 3-pole captive screw connector; voltage control port on 2-pole captive screw connector; and 10k ohm resistance control port on 3-pole captive screw connector

Volume and mute control for the MPA Series and select XTRA™ Series amplifiers, and a wide range of commercial amplifiers

For MediaLink^® Controllers with RS-232, TouchLink^®-based systems, and other control systems

Ground isolated, digital circuitry prevents noise in signal path

Soft Start volume ramping gently restores volume levels during power cycles and unmuting

Selectable volume taper provides a consistent linear or natural logarithmic feel to volume changes

High resolution volume control range for smooth volume changes without audible level jumps

Real-time status LED indicators for setup and troubleshooting

RS-232 serial control

Front panel USB configuration port

Can be powered from the same power supply used for the MediaLink Controller or IP Link® Control Processor

Optional energy-efficient external universal power supply available, part # 70-1175-01 — Provides worldwide power compatibility with high reliability and low power consumption for reduced operating costs. Includes a ZipClip 50 Mounting Kit to securely mount an Extron power supply onto most surfaces, including tables and lecterns.

OPTIONAL ACCESSORIES
	RSF 123	Rack Shelf Kit for 3.5" Deep Products
	RSU 129	Universal Rack Shelf Kit for 9.5" Deep Products
	MBU 123	Low-Profile Mount Kit for 1/8, 1/4, and 1/2 Rack Width Products
	PMK 100	Pole Mount Kit for One 1/4 Rack Width Product

OPTIONAL ACCESSORIES

RSF 123

Rack Shelf Kit for 3.5" Deep Products

RSU 129

Universal Rack Shelf Kit for 9.5" Deep Products

MBU 123

Low-Profile Mount Kit for 1/8, 1/4, and 1/2 Rack Width Products

PMK 100

Pole Mount Kit for One 1/4 Rack Width Product

SIMILAR PRODUCTS
	ACP 100	Audio Control Panel with Volume and 6 Control Buttons US 2-Gang
	ACP 105 D	Audio Control Panel with 5 Buttons Decorator-Style
	ACP 106 D	Audio Control Panel with 6 Buttons Decorator-Style
	ACP 106 EU	Audio Control Panel with 6 Buttons Flex55 and EU
	ACP VC1 D	Audio Control Panel with Volume and Mute Decorator-Style
	ACP VC1 EU	Audio Control Panel with Volume and Mute Flex55 and EU
	ATB 100	Amplifier Tile Bridge Ceiling Mount Kit
	DAC 102	Two Channel Digital to Analog Audio Converter
	IN9365D	One XLR 3-pin Female to Solder Cups - Neutrik
	IN9384	One 1/4" Female Stereo Phone to Solder Tabs
	IN9385	One 3.5 mm Stereo Mini Jack to Solder Tabs
	IN9451	Two Mini XLR 3-pin Male to Solder Cups - Switchcraft
	IN9457	Two 3.5 mm Stereo Mini Jack to Captive Screw Terminal
	IN9473D	One Neutrik Speakon Male to Solder Tabs - 4 Pole
	IN9486D	One RJ-45 Female to Punch Down – CAT 5e Neutrik EtherCon
	One 3.5 mm Stereo Mini Jack to Solder Tabs
	One Neutrik Speakon Male to Solder Tabs - 4 Pole
	One RJ-45 Female to Punch Down - CAT 5e Neutrik EtherCon Ruggedized Connector
	One XLR 3-pin Female to Solder Cup - Neutrik
	One XLR 3-pin Female to Solder Cups - Neutrik, One RJ-45 Barrel - CAT 5e
	One XLR 3-pin Male to Solder Cups - Neutrik
	One XLR 3-pin Male to Solder Cups - Switchcraft
	One XLR 3-pin Male to Solder Cups, One XLR 3-pin Female to Solder Cups - Neutrik
	PPC 25	Priority Page Controller
	SGK SF26C	Square Grille Kit for SF 26CT Series Ceiling Speakers
	SGK SF3C	Square Grille Kit for SF 3C LP, SF 3CT LP, and SF 10C SUB
	SGK SF8C	Square Grille Kit for the SF 8CT SUB
	SMK A	Speaker Aircraft Cable Kits
	SMK C SF 26PT	Ceiling Surface Mount Kit for SF 26PT and SF 28PT
	SMK CA Series	SwiftMount Column Array Speaker Mounting System
	SMK P SM 26/28	Pivot Mount Kit for SM 26 and SM 28 Speakers
	Surface Mount Kit	Replacement Surface Mount Kit
	Two 1/4" Female Stereo Phone to Solder Tabs
	Two 3.5 mm Stereo Mini Jack to Captive Screw Terminal
	Two 3.5 mm Stereo Mini Jack to Solder Tabs
	Two Neutrik Speakon Male to Solder Tabs - 4 Pole
	Two XLR 3-pin Female to Solder Cups
	Two XLR 3-pin Male to Solder Cups - Neutrik
	VC 50	Volume Control Wallplate
	VCM 110 AAP	Volume and Mute Controller - AAP Version
	VCM 200 D	Volume and Mute Controller - Decorator-Style Wallplate
	VCM 200 EU	Volume and Mute Controller - EU Wall Frame for Flex55 and EU Enclosures
	V-Lock	Replacement V-Lock Wall Assembly for Extron Surface Mount Speakers
	WPD 100 Audio Series	Audio Pass-Through Wallplates - Decorator-Style
	Yoke Mount	Yoke Mount Kit for SM 26 and SM 28 Speakers

SIMILAR PRODUCTS

ACP 100

Audio Control Panel with Volume and 6 Control Buttons
US 2-Gang

ACP 105 D

Audio Control Panel with 5 Buttons
Decorator-Style

ACP 106 D

Audio Control Panel with 6 Buttons
Decorator-Style

ACP 106 EU

Audio Control Panel with 6 Buttons
Flex55 and EU

ACP VC1 D

Audio Control Panel with Volume and Mute
Decorator-Style

ACP VC1 EU

Audio Control Panel with Volume and Mute
Flex55 and EU

ATB 100

Amplifier Tile Bridge Ceiling Mount Kit

DAC 102

Two Channel Digital to Analog Audio Converter

IN9365D

One XLR 3-pin Female to Solder Cups - Neutrik

IN9384

One 1/4" Female Stereo Phone to Solder Tabs

IN9385

One 3.5 mm Stereo Mini Jack to Solder Tabs

IN9451

Two Mini XLR 3-pin Male to Solder Cups - Switchcraft

IN9457

Two 3.5 mm Stereo Mini Jack to Captive Screw Terminal

IN9473D

One Neutrik Speakon Male to Solder Tabs - 4 Pole

IN9486D

One RJ-45 Female to Punch Down – CAT 5e Neutrik EtherCon

One 3.5 mm Stereo Mini Jack to Solder Tabs

One Neutrik Speakon Male to Solder Tabs - 4 Pole

One RJ-45 Female to Punch Down - CAT 5e Neutrik EtherCon Ruggedized Connector

One XLR 3-pin Female to Solder Cup - Neutrik

One XLR 3-pin Female to Solder Cups - Neutrik, One RJ-45 Barrel - CAT 5e

One XLR 3-pin Male to Solder Cups - Neutrik

One XLR 3-pin Male to Solder Cups - Switchcraft

One XLR 3-pin Male to Solder Cups, One XLR 3-pin Female to Solder Cups - Neutrik

PPC 25

Priority Page Controller

SGK SF26C

Square Grille Kit for SF 26CT Series Ceiling Speakers

SGK SF3C

Square Grille Kit for SF 3C LP, SF 3CT LP, and SF 10C SUB

SGK SF8C

Square Grille Kit for the SF 8CT SUB

SMK A

Speaker Aircraft Cable Kits

SMK C SF 26PT

Ceiling Surface Mount Kit for SF 26PT and SF 28PT

SMK CA Series

SwiftMount Column Array Speaker Mounting System

SMK P SM 26/28

Pivot Mount Kit for SM 26 and SM 28 Speakers

Surface Mount Kit

Replacement Surface Mount Kit

Two 1/4" Female Stereo Phone to Solder Tabs

Two 3.5 mm Stereo Mini Jack to Captive Screw Terminal

Two 3.5 mm Stereo Mini Jack to Solder Tabs

Two Neutrik Speakon Male to Solder Tabs - 4 Pole

Two XLR 3-pin Female to Solder Cups

Two XLR 3-pin Male to Solder Cups - Neutrik

VC 50

Volume Control Wallplate

VCM 110 AAP

Volume and Mute Controller - AAP Version

VCM 200 D

Volume and Mute Controller - Decorator-Style Wallplate

VCM 200 EU

Volume and Mute Controller - EU Wall Frame for Flex55 and EU Enclosures

V-Lock

Replacement V-Lock Wall Assembly for Extron Surface Mount Speakers

WPD 100 Audio Series

Audio Pass-Through Wallplates - Decorator-Style

Yoke Mount

Yoke Mount Kit for SM 26 and SM 28 Speakers

Specifications

MLA VC10 Plus

Control/remote — MLA volume controller

Serial control port

1 RS-232, 3.5 mm captive screw connector, 3 pole

Baud rate and protocol

9600 baud, 8 data bits, 1 stop bit, no parity

Serial control pin configuration

1 = Tx, 2 = Rx, 3 = GND

USB control ports

1 front panel female mini USB B

USB standards

USB 2.0, low speed

NOTE	The USB connector provides 5 VDC for configuration purposes only. This port cannot be used to supply power during operation.

Program control

Extron Simple Instruction Set (SIS^™)

Control — voltage — amplifier

Number/type

1 control voltage

Connectors

(1) 3.5 mm captive screw connector, 2 pole

Pin configuration

1 = +, 2 = GND

Control voltage output range

0 - 10 VDC (typical tolerance ±0.2 volts), adjustable

Control — resistance — amplifier

Number/type

1 control resistance

Connector

(1) 3.5 mm captive screw connector, 3 pole

Pin configuration

1 = +, 2 = wiper, 3 = GND

Range

0 - 10 kilohms (typical tolerance ±0.2 kilohms), adjustable

Max. input voltage

25 VDC

Max. current/power rating

5 mA/25 mW across the + and wiper or GND and wiper pins

Control — relay — amplifier

Number/type

1 momentary or latching

Connector

(1) 3.5 mm captive screw connector, 3 pole

Connector configuration

1 = 1 normally open relay, 2 = common, 3 = 1 normally closed relay

Contact rating

24 V, 1 A

General

Power

Supplied by a 12 VDC, 1 A external power supply (sold separately) or a MediaLink^® or IP Link^® controller

Power input requirements

12 VDC, 0.3 A (max.)

Ambient temperature/humidity

Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Cooling

Convection, no vents

Mounting

Rack mount

Yes, with optional 1U rack shelf or back of the rack mounting kit

Furniture mount

Yes, with optional mini under-desk mounting kit, or set on tabletop

Enclosure type

Metal

Enclosure dimensions

1.7" H x 2.2" W x 3.0" D (1U high, one-eighth rack wide)
(4.3 cm H x 5.6 cm W x 7.6 cm D)
(Depth excludes connectors.)

Product weight

0.2 lbs (0.1 kg)

Shipping weight

1 lb (0.5 kg)

Vibration

ISTA 1A in carton (International Safe Transit Association)

Regulatory compliance

Safety

CE, c-UL, UL

EMI/EMC

CE, C-tick, FCC Class A, ICES, VCCI

Environmental

Complies with the appropriate requirements of RoHS, WEEE.

Product warranty

3 years parts and labor

NOTE	All nominal levels are at ±10%.

NOTE	Specifications are subject to change without notice.

(8.0-062912-D3)

Shipping Dimensions and Weights
Part #	Height	Width	Depth	Weight
60-1090-01	2.69" (6.8 cm)	9.5" (24.1 cm)	7.3" (18.5 cm)	1.03 lbs (0.47 kg)

MLA VC10 Plus

Features

Specifications

Diagram

Panel Drawing