Installation, cont’d

Audio connections

9 Aux/Mix Mono audio input (all models) —The Aux/Mix

The stereo audio inputs 1–3 ( 7 and 8 on page 2-5 and below)

Mono audio channel is always active: its signal is output no

matter which, if any, other audio input (input 1, 2, 3, or 4) is

correspond to video inputs 1, 2, and 3. All four audio inputs can

selected. For example, you could connect the output of a

be selected via the front panel buttons, RS-232 control

wireless microphone receiver to this port so the presenter’s

(including MLC), or the MediaLink Control Software. An audio

comments can always be heard and are independent of the A/V

signal from one of these inputs is output only when the

source used for the presentation.

 

 

 

 

 

 

 

 

 

 

 

 

corresponding input is selected. Using the MediaLink Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software you can separately adjust the level of each of these

The mix output level can be adjusted between -43dB and +24dB.

audio inputs.

 

 

The Aux/Mix level must be adjusted

AUX/MIX

 

 

 

 

 

Via RS-232 control audio input signals can also be switched

 

 

physically via the front panel

 

MONO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

separately from the video signals (a feature called “audio

 

 

control. It cannot be adjusted via

 

 

 

 

 

 

 

 

 

 

 

 

breakaway”.) See pages 4-4 and 4-8.

 

 

software.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 Computer audio inputs (MLS 102 VGA only) — These inputs

Connect a 3.5 mm, 3-pole captive screw

 

each accept unbalanced stereo audio input via a 3.5 mm stereo

 

connector to one end of an audio

 

 

 

 

 

 

 

 

 

mini receptacle (tip-

 

 

 

 

Tip (+)

Sleeve (Gnd)

 

 

 

 

cable as shown at right. Wire the

 

 

 

 

 

 

ring-sleeve type). If

 

 

 

 

 

 

 

 

 

 

 

other end to two tip-ring connectors

Tip (+)

 

 

 

 

 

 

you do not have a pre-

 

 

 

 

 

 

or one tip-ring-sleeve connector as

 

 

 

 

 

 

Gnd (Sleeve,

)

 

 

 

 

 

 

terminated audio

 

shown in 7 and

8 , and connect it

Ring ()

 

 

 

 

 

 

cable, wire the mini

 

 

 

 

Ring (R, -)

 

 

 

 

 

between the MLS 100 Series switcher

Aux/Mix Input Wiring

 

 

 

 

 

jack on each end of the

 

 

Tip (L, +)

 

 

and the auxiliary audio source.

 

(balanced/unbalanced, mono)

 

 

 

 

cable as shown at left.

 

 

 

 

 

 

 

10 Audio output (Out) (all models) — Connect self-powered

 

 

 

Sleeve (Gnd)

 

 

 

 

 

 

 

 

 

 

speakers or another stereo audio device to the MLS via this

8 Audio Inputs (all models) — Each of these 3-pole 3.5 mm

 

5-pole 3.5 mm captive screw connector. Depending on how the

 

connector is wired, the audio output can be balanced or

captive screw

 

 

L

R

L

R

 

 

unbalanced stereo audio. Wire the connector as shown below.

connectors accepts

 

 

 

 

 

 

 

 

 

 

 

 

Unbalanced Output

 

Balanced Output

one unbalanced stereo

 

 

 

 

 

 

or mono audio input.

 

 

 

 

 

Tip

L

 

Tip

L

 

 

 

 

 

See Caution

 

Ring

Wire each captive

 

 

 

 

 

 

OUT

 

OUT

 

 

 

 

 

 

Sleeve (s)

Sleeve (s)

 

 

 

 

 

 

Tip

 

Tip

screw connector

 

 

 

 

 

 

R

 

R

 

 

 

 

 

 

See Caution

 

Ring

 

 

 

 

 

 

 

 

 

as shown at

 

 

 

 

 

 

CAUTION

Connect the sleeve to ground (Gnd). Connecting

right,

 

 

 

 

 

 

 

depending on

 

Left (+)

 

Left (+)

 

 

the sleeve to a negative (-) terminal will damage the

Gnd (Sleeve,

)

 

Gnd (Sleeve, )

 

 

the input type.

 

 

 

audio output circuits.

 

 

 

 

 

 

Right (+)

 

 

 

 

Audio Input Wiring

Audio Input Wiring

(unbalanced, mono)

(unbalanced, stereo)

Connect two RCA-style (tip-ring) connectors to the other end of each audio input cable as shown here:

Tip (+) Sleeve (Gnd)

Later, after all the equipment has been cabled and powered on, use the MediaLink Control Program or an RS-232controller to set the per-input gain/attenuation to match the correct audio output level for the kind of output (balanced or unbalanced) you need. See pages 2-9 and 4-10 for details on determining and setting the gain/attenuation to produce the desired output levels.

If you wire an audio output for balanced output, the MLS will output a unity signal (input level = output level). Wiring an audio output for unbalanced output causes the audio signal to be attenuated by 6dB. See pages 2-9 and 2-10 for instructions on adjusting audio gain.

2-6

MediaLink VersaTools Switchers • Installation

MediaLink VersaTools Switchers • Installation

2-7

Page 9
Image 9
Extron electronic MLS 102 VGA, MLS 103 V, MLS 103 SV Audio connections, Aux/Mix Mono audio input all models -The Aux/Mix

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.