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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Extron electronic MLS 406SA Introduction, About this Manual, About the MLS 304 Series and the MLS 406 Series, Features