Extron electronic MLS 103 SV Setting Up Optimal Audio Gain, Control and power connections

Page 10

Installation, cont’d

Control and power connections

11 MLC/RS-232 Power port (all models) — An Extron MediaLink Controller (MLC 206), a computer, or a third party RS-232 controller provides remote control of input switching and volume, and also provides a way to set the switcher’s audio input levels. To control and/or set up the MLS, connect a cable between this 5-pole 3.5 mm captive screw connector and an optional MLC 206, computer, or a third party RS-232 controller. Also connect an external 12VDC power supply here to provide power to the MLS and to the optional MLC.

Extron Comm-Link cable is recommended for this connection. If you use Comm-Link cable, the switcher and controller can be up to 250 feet (76.2 m) apart. Wire the captive screw connector for connection to either an MLC 206 or third party controller as shown in the picture on the next page.

• For a stand-alone MLS switcher, connect a cable from the host computer or a third party control system to this connector to set up and remotely control the switcher, connect a 12VDC power supply, and tie all the drain wires to the same ground.

• For an MLS switcher slaved to an MLC controller, connect a cable from the MLC’s MLS/Power port and from a 12VDC

Once the system has been cabled and set up via the control software and the front panel Aux/Mix adjustment, the MLC or a host computer communicating through the MLC can be used to remotely control the switcher. Refer to chapter four of the MediaLink Controllers User’s Manual and to the MediaLink Control Program help file for details on configuring an MLC-MLS system.

An Extron IR Link infrared repeater cannot be used with the MLS 100 Series switchers. There is no connection for that device’s control signals.

The MLC to which the MLS 100 Series switcher is connected must have MLC firmware version 1.04 or higher. The control/setup software must be version

2.0 or higher. Use one of the following methods to find

out the version levels of the MLC’s firmware and the

control software.

• Connect the MLC’s RS-232 port to a computer or

RS-232 controller, and send an SIS command (see

chapter four) of Q to the MLC. The MLC will respond

with its firmware version.

• Connect the MLC’s RS-232 port to a computer, start

the MediaLink control software

MLC/RS-232

power supply, and tie all the drain wires to the same ground.

(see chapter four), and click on

Help to display the software

POWER

MLS100Series

 

Switcher

A B

MLC/RS-232

Power Port

 

 

1

 

 

 

 

2

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

INPUTS

 

 

 

 

OUTPUT

 

 

 

 

 

AUDIO INPUTS

 

 

 

AUX/MIX

 

OUT

CONTROL/

L

1

R

L

2

R

L

3

R

L

4

R

MONO

L

R

POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A B

MLS 103 V

 

 

 

 

 

 

 

 

 

12V

.5A MAX

 

 

 

MLS 103 V

+12VDC input

 

 

Rear Panel

Ground ( )

 

 

 

External

 

 

 

 

Power Supply

 

 

External

 

250 ft

 

 

Power Supply

 

 

 

 

(76.2 m)

 

 

(12VDC, 1A max.)

 

 

 

 

max.

 

 

 

 

Ground all devices

 

 

 

+12VDC

 

 

 

 

Ground ( )

 

A B C D E A B C D E

1A 1B 2A 2B 3A 3B A B C D

1 2 3 4 5 6 A B

 

IR RS-232

 

Tally Out MLS/Power

 

Display/Source Control

Relays IR/RCM

Extron Switcher Control

B Receive (Rx)

Transmit (Tx) B

MLC 206 Bottom Panel

A Transmit (Tx)

Receive (Rx) A

 

 

 

NOTE If you use cable that has a

MLC 206's

NOTE You must connect a

drain wire, tie the drain wire

MLS/Power

ground wire between

to ground at both ends.

Port

 

the MLC and MLS.

A B

 

version, the MLC’s firmware

version, and the MLS’s

firmware version as shown in

the example at right.

If your MLS’s firmware is an earlier version, contact

Extron to obtain updated firmware.

Setting Up Optimal Audio Gain

Audio input levels and desired output levels vary depending on the types of equipment involved. Before setting the MLS’s per- input gain or attenuation, determine the levels of the input and output equipment. Use the table below as a general guide.

Typical Audio Levels for Various Equipment Types

 

Input/Output Levels

 

+4dBu 0dBu

-10dBV

-20dBV

 

 

 

(-8dBu)

(-18dBu)

Professional line level audio equipment X

X

 

 

Connecting an MLC 206

MLS / Power

Equipment Categories

Consumer audio equipment (VCRs, DVDs,

X

X

 

to a MediaLink VersaTools Switcher and an external power supply

laptop computers, portable audio devices)

2-8

MediaLink VersaTools Switchers • Installation

MediaLink VersaTools Switchers • Installation

2-9

Image 10
Contents MediaLink VersaTools Switchers User’s ManualExtron’s Warranty PrecautionsFCC Class a Notice Quick Start Guide MLS 100 Series Attach the cables. See the instructions beginning onTable of Contents One MediaLink VersaTools SwitchersTable of Contents, cont’d IntroductionTwo InstallationIntroduction Mounting the Switchers InstallationUL/Safety Requirements Tabletop useFurniture or projector mounting Installation, cont’dRear Panel Features and Cabling Video connectionsAudio connections Aux/Mix Mono audio input all models -The Aux/MixControl and power connections Setting Up Optimal Audio GainTypical Audio Levels for Various Equipment Types Setup via the MediaLink Control Software Application DiagramsGain and Attenuation Settings for MLS 100 Series Switchers Chapter Three OperationMediaLink VersaTools Switchers Operation Front Panel Features and OperationExecutive mode enabling and disabling front panel buttons OperationOperation, cont’d Troubleshooting Serial Communication 4ChapterOperation, cont’d RS-232 Programmer’s Guide MLC/RS-232 Power port pin assignmentsSerial Communication Host-to-MLS communicationsCommand/response table for SIS commands Serial Communication, cont’dUsing the control program Command/response table for special function SIS commandsInstalling the software Control Software for WindowsSpecial features User ModeFor stand-alone MLS 100 Series switchers For MLS 100 Series switchers controlled by an MLCEmulation mode Saving and restoring configurationsSwitcher MLS Config AAppendix a Specifications, Part Numbers AccessoriesUsing the help program Key to file namesSpecifications, Part Numbers, and Accessories Audio output Specifications, Part Numbers, Accessories, cont’dControl/remote switcher GeneralAdapters AccessoriesCables Plenum Comm-link cable Part number
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MLS 100 A, MLS 103 SV, MLS 102 VGA, MLS 103 V specifications

Extron Electronics is renowned for its innovative and high-quality AV solutions, and the MLS series, including the MLS 102 VGA, MLS 100 A, MLS 103 SV, and MLS 103 V, exemplifies the company's commitment to excellence in audio-visual integration. These MediaLink Switchers are designed to simplify the management of multiple audio and video sources in classrooms and conference rooms, providing seamless integration and user-friendly operation.

The MLS 102 VGA model focuses on VGA signals, making it a reliable choice for installations that primarily use legacy video sources. It features a simple interface with push-button controls, enabling users to easily switch between two video sources with a single VGA output. This model is ideal for educational environments where older laptops and PCs are still in use.

The MLS 100 A model adds audio capabilities to the mix, offering audio switching along with video. This switcher supports stereo audio signals, allowing educators to present multimedia content effectively. The MLS 100 A simplifies the setup for instructors, enabling them to connect different media sources without complicated wiring or extensive technical knowledge.

The MLS 103 SV and MLS 103 V models elevate functionality with their multi-format switching capabilities. The MLS 103 SV supports both VGA video and stereo audio, while the MLS 103 V is solely focused on video. Both models provide a more comprehensive solution for modern AV requirements. The MLS 103 series employs advanced signal processing technology, ensuring high performance across multiple resolutions and formats.

Additionally, the MLS 103 series incorporates features such as EDID management, which automatically configures the video output to ensure compatibility with a variety of display devices. This eliminates the need for users to worry about the technicalities, enabling a smooth, hassle-free experience.

Scalability is another key characteristic of the MLS series. These devices can be seamlessly integrated with other Extron products, allowing for an expandable AV infrastructure that meets the growing demands of technology in educational and corporate environments.

Durable construction, easy installation, and operation make the MLS series a preferred choice among AV professionals. Whether for a small meeting room or a large lecture hall, Extron's MLS 102 VGA, MLS 100 A, MLS 103 SV, and MLS 103 V models deliver flexibility, reliability, and superior performance, enhancing any audio-visual presentation.