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 an 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 RS-232 controller. Also connect an external 12 VDC power supply here to provide power to the MLS and to the optional MLC.

Extron Comm-Link cable is recommended for this connection. If using 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 an MLC 206 or control system as shown below.

For a stand-alone MLS switcher, connect a cable from the host

 

computer or a control system to this connector to set up and

 

remotely control the switcher,

A

A

 

connect a 12 VDC power

 

 

 

 

 

 

 

 

 

supply, and tie all the drain

 

 

 

 

 

 

 

 

wires to the same ground.

Power Supply

 

SECTION A–A

 

 

 

 

 

 

 

 

For an MLS switcher slaved

Output Cord

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to an MLC controller, connect a cable from the MLC’s MLS/

 

Power port and from a 12 VDC power supply, and tie all the

MLC/RS-232

drain wires to the same ground.

 

 

 

 

 

 

POWER

MLS 100 Series

 

Switcher

A B

MLC/RS-232

Power Port

 

 

1

 

 

 

 

2

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

INPUTS

 

 

 

 

OUTPUT

 

 

 

 

 

AUDIO INPUTS

 

 

 

AUX/MIX

 

PREAMP

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

+12 VDC input

 

 

Rear Panel

Ground ( )

 

 

 

External

 

 

 

 

Power Supply

 

External

 

 

250 ft

 

Power Supply

 

 

 

 

 

(76.2 m)

 

(12 VDC, 1A max.)

 

 

 

 

 

max.

 

 

 

 

Ground all devices

 

 

 

+12 VDC

 

 

 

 

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

 

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 4 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

2.0or 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 of Q (see chapter 4) to the MLC. The MLC responds with its firmware version.

Connect the MLC’s RS-232 port to a computer, start the MediaLink control software

(see chapter four), and click on Help to display the software 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

Input/Output Levels

 

for Various Equipment Types

+4 dBu 0 dBu

-10 dBV -20 dBV

 

 

 

 

 

(-8 dBu)

(-18 dBu)

 

Equipment Categories

Professional line level audio equipment

X

X

 

 

 

 

 

 

 

 

 

Consumer audio equipment (VCRs, DVDs,

 

 

X

X

 

laptop computers, portable audio devices)

 

 

 

Connecting an MLC 206

MLS /Power

to a MediaLink VersaTools Switcher and an external power supply

Gain and attenuation are adjustable (from -18 dB to +24 dB) for each input (1 through 4) via RS-232 control only (using

2-8

MediaLinkVersaTools© Switchers • Installation

MediaLinkVersaTools© 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 modelsTypical Audio Levels Setting Up Optimal Audio GainControl and power connections For Various Equipment TypesSetup via the MediaLink Control/Configuration Software Gain and Attenuation Settings for MLS 100 Series SwitchersThree Installation, cont’d Application DiagramsOperation Executive mode enabling and disabling front panel buttons Front Panel Features and OperationOperation Operation, cont’d Troubleshooting MediaLink VersaTools Switchers OperationSerial 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’dInstalling the software Control/Configuration Software for WindowsCommand/response table for special function SIS commands Using the control/configuration programSpecial 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 Emulation Configuration dialog box appears Updating firmwareUsing the help program Key to file namesSpecifications, Part Numbers Accessories AAppendix aSpecifications, Part Numbers, and Accessories SpecificationsMediaLink VersaTools Specifications, s, Accessories Specifications, Part Numbers, Accessories, cont’dControl/remote switcher Audio outputAdapters AccessoriesCables Plenum CTL Comm-link cable Part numberInputs Switchable
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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.