Extron electronic MLS 406SA, MLS 304SA, MLS 304MA manual Introduction, About this Manual, Features

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Introduction

About this Manual

This manual covers the installation, setup, programming, and use of the Extron MLS 304MA, MLS 304SA, MLS 406, MLS 406MA, and MLS 406SA MediaLinkswitchers. The three models share many features, and instructions apply to all three unless otherwise stated. Throughout the manual these switchers are interchangeably referred to as MLS, MediaLink switcher, and switcher. Procedures or explanations that are model-specific mention the model name (e.g. MLS 406MA).

About the MLS 304 Series and the MLS 406 Series

The Extron MLS 304MA, MLS 304SA, MLS 406, MLS 406MA, and MLS 406SA are four- and six-input, active switchers. They accept RGB computer video (all models), S‑video (MLS 406 Series), composite video inputs (all models), stereo audio inputs, and a line level mono audio auxilliary/mixer input.

Each switcher has a local monitor loop-through/output in addition to the RGB and video projector/plasma display output and balanced or unbalanced lineout and preamp audio outputs. If desired, the monitor output can be used as a second RGB display output instead of for a local monitor. Additionally, the MA models offer amplified mono audio output for 4 ohm, 8 ohm, or distributed 70 V or 100 V speaker systems. The SA models offer amplified stereo audio output for 4 ohm or 8 ohm speaker systems.

These switchers can all be set up and controlled via the front panel buttons or via an RS-232 connection from a computer, a control system, or an Extron MediaLink Controller. Some setup options are available only via the included Windows-based MediaLink Control Program. With the addition of an optional Extron IR Link infrared signal repeater, an Extron MediaLink IR remote control can be used for input selection and volume adjustment.

Features

All models

High RGB video bandwidth (280 MHz at -3 dB)

Triple-Action Switching(RGB delay switching)

Video format versatility: the switchers accept RGB computer video, S-video (MLS 406, MLS 406MA, MLS 406SA), and composite video

Monitor Output for local monitor loop-through or for an additional RGB output

Aux/Mix audio input for mixing mono line level audio with the switchable audio input

Adjustable audio bass, treble, and volume

Individually adjustable audio input levels

Balanced or unbalanced preamp audio output

Loudness control

Ability to lock the front panel to prevent unauthorized access (executive mode)

Control and configuration via RS-232

Ventilated 1U, rack mountable, metal enclosure

MA models

Integrated 20 watt mono audio amplifier for 4 ohm or 8 ohm, or 16 watts for 70 V or 100 V distributed output

SA models

Integrated 24 watt audio amplifier for stereo or dual mono 4 ohm output or 16 watts for stereo or dual mono 8 ohm output

1- MLS 304 Series, MLS 406Series • Introduction

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Contents MediaLink Switchers MLS 304MA, MLS 304SA, MLS 406, MLS 406MA, MLS 406SAPrecautions Safety Instructions EnglishConsignes de Sécurité Français Sicherheitsanleitungen DeutschInstallation Quick Start MLS 304MA, MLS 406, MLS 406MAVideo Configuration Table of Contents Table of Contents, cont’d One Features IntroductionAbout this Manual About the MLS 304 Series and the MLS 406 SeriesTwo Installation UL/Safety RequirementsImportant Safety Instructions MLS 304 Series, MLS 406 Series InstallationRack mounting Mounting the SwitcherTabletop use Power, input, and control connections Power connectionMLS 304 Series, MLS 406 Series Installation Rear Panels and CablingInput Type Signal BNC Color Balanced Mono InputInstallation, cont’d  MLS 304 Series, MLS 406 Series InstallationIR Link IR signal repeater Control connectionThat has an external power supply Audio outputs Video output, local monitor, and audio output connectionsVideo outputs Unbalanced Mono Output Balanced Mono Output Wiring for 4 ohm or 8 ohm speakers MA models Ohm Total LoadSpeakers Tapped at 7.5 Watts Each Equals 15 Watts Total Wiring for 4 ohm or 8 ohm speakers SA models Stereo OutputSpeaker arrangement examples Examples of speaker layoutsExtron Application DiagramsMLC MLC ProjectorThree Operation and Setup Front Panel Features and Operation MLS 304 Series, MLS 406 Series Operation and Setup Minimum threshold at least 21%MLS 304 Series, MLS 406 Series Operation and Setup Front panel security lockout executive modesMLS 304 Series, MLS 406 Series Operation and Setup Setting Up and Optimizing the AudioResetting the switcher Configuring Lineout and Preamp output levels Adjusting audio input levelsMaking adjustments Signal detection thresholdClipping level Normal rangeVideo Signal Routing Standard mode modeDA distribution amplifier mode mode RGB follow mode modeMode Remote ControlMode Selected input Input special conditions Monitor Output If the image does not appear or there is no sound TroubleshootingIf the switcher does not respond to controls Preliminary Four Host-to-MLS communications Serial CommunicationRS-232 Programmer’s Guide MLS 304 Series, MLS 406Series Serial Communication Using the command/response tablesSymbol definitions Command/response table for SIS commands Command Ascii Command Response Additional descriptionAudio status for the active input Aux/Mix inputFirmware version, part number & information requests Command/response table for special function SIS commands Command Ascii Command Response ? valuesControl Software for Windows Installing the softwareUsing the control program User Mode Screen Special featuresSwitcher MLS Config Screen Preliminary Updating firmware Saving and restoring configurationsFile menu options Follow the on-screen instructions File name Description Using the help programKey to file names AAppendix a Specifications Reference MaterialVideo Video input and loop-throughMLS 304 Series, MLS 406 Series Reference Material A- SyncAudio Audio output mono power amp MLS 304MA, MLS 406MA only Audio inputAudio output Lineout and Preamp Included partsGeneral Audio output stereo power amp MLS 304SA, MLS 406SA onlyControl/remote switcher Part Numbers and Accessories Optional accessoriesIncluded parts Replacement Part number Accessory Part numberFrequency Response Graph for the Loudness Feature Audio Reference LevelsAudio Block Diagrams MLS 304MA audio block diagramMLS 304SA audio block diagram Utinpse LE CTMLS 406, MLS 406MA audio block diagram InputsMLS 406SA audio block diagram MLS 304 Series, MLS 406 Series Reference Material A-11This page was deliberately left blank FCC Class a Notice Extron’s Warranty Extron Electronics, USA
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