Extron electronic MLS 406SA, MLS 304SA, MLS 304MA Balanced Mono Input, Input Type Signal BNC Color

ÖMLS 406, MLS 406MA, MLS 406SA audio input 4 (captive screw) — This input accepts line level audio signals from consumer and professional audio sources. Consumer devices such as laptops, VCRs, and DVD players typically output an unbalanced -20 dBV to -10 dBV signal. Professional products such as mixers and signal processing gear typically output a balanced +4 dBu level signal. To adjust input levels, see pages 3‑5 and 4‑10 through 4‑11.

Wire the 3.5 mm captive screw connector as shown in the following illustrations, depending on input signal type.

Tip	L
Sleeve
Tip	R
Sleeve

Unbalanced Stereo Input

(high impedance)

Tip	L
Sleeve
Tip	R
Sleeve

Unbalanced Mono Input

(high impedance)

Tip	L
Ring
Sleeve (s)
Tip	R
Ring

Balanced Stereo Input

(high impedance)

Tip	L
Ring
Sleeve (s)
Tip	R
Ring

Balanced Mono Input

(high impedance)

The length of exposed wires is critical. The ideal length is 0.2" (5 mm).

•If the stripped section of wire is longer than 0.2", the exposed wires may touch, causing a short circuit between them.

•If the stripped section of wire is shorter than 0.2", wires can be easily pulled out even if tightly fastened by the captive screws.

0.2” (5 mm) max.

Do not tin the wires!

NAfter the audio inputs and outputs are connected, see chapter 3 for instructions on how to adjust the per-input audio sensitivity levels and optimize audio input and output.

Computer video (and audio) inputs — MLS 304MA and MLS 304SA inputs 3 and 4; and MLS 406, MLS 406MA, and MLS 406SA inputs 4, 5, and 6, all on 15-pin HD connectors; are individually buffered and provide ID bit termination. They accept

•RGB computer video signals (default) or

•S-video (MLS 406 Series only) or composite video (all models)

For S-video or composite video, the switcher must be configured via RS-232 serial control (SIS commands or control software); see pages 4-4 and 4-10 through 4-11.

For RGB input, connect a standard VGA-style cable from the source computer to the desired MLS input. For S-video or composite video input, you may need to use an adapter cable such as an Extron SY 15HDM-RGBHV cable (shown below). Connect the video or S-video source to the MLS as follows:

Input Type	Signal (BNC Color)	15-pin HD Pin
S-video	Y (green), C (blue)	2, 3
Composite video	video (red)	1

V = vertical sync

H/HV = horiz. sync

B = blue or S-video (C)

G = green or S-video (Y)

R = red or video

NSelecting S-video or composite video for these inputs limits the Monitor Output mode options to Standard Mode.

MLS 304 Series, MLS 406 Series • Installation 2-

PRELIMINARY