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Introduction, About the swp123 presentation switcher, Swp123 switcher features – Extron Electronics SWP123 User Manual

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SWP123 Presentation Switcher • Introduction

Introduction

About the SWP123 Presentation Switcher

The Extron SWP123 is a presentation switcher featuring three independent
audio/video (A/V) switchers and a master audio switcher in one enclosure.
They include a 4 x 1 composite video/stereo audio switcher, a 4 x 1 S-video/
stereo audio switcher, a 4 x 1 VGA/audio switcher, and a 3 x 1 Master Audio
switcher. The SWP123 accepts microphone input and mixes the microphone
signal with the main audio in “talk over” mode. The SWP123 also features a
built-in transcoder loop function and an RS-232/RS-422/RS-485 control port.

“SWP123” and “switcher” are used interchangeably in this manual to refer to
the SWP123 Presentation Switcher.

SWP123 Switcher Features

Bandwidth

— Bandwidth for the VGA switcher is 450 MHz (-3dB), allowing the

switcher to switch everything from NTSC video to high-resolution computer
displays.

Multiple video inputs

— Twelve inputs can include four composite video (NTSC,

PAL, or SECAM) on BNC female connectors, four VGA (or SVGA, UXGA,
RGBHV, RGBS, RGsB, or RsGsBs) on 15-pin HD female connectors, and four
S-video (NTSC, PAL, or SECAM) on 4-pin mini DIN female connectors.

Multiple video outputs

— Three outputs for simultaneous (in Separate mode), and

one at a time (in Single mode) display on VGA, S-video, or composite video.

Multiple audio inputs

— Twelve line level unbalanced stereo inputs can include

four to the VGA group, four to the S-video group, and four to the composite
video group. All audio inputs are on female RCA connectors.

Multiple audio outputs

— One output for each group (VGA, S-video, and

composite video), plus Master Audio. All audio outputs are balanced or
unbalanced on 3.8 mm, 5-pin captive screw connectors.

Master audio switcher

— A 3 x 1 stereo audio switching system allows the audio

input of any video group to be selected for Master Audio output, with
volume and mute control.

Individual input audio attenuation adjustments

— To balance each audio input

Master-Audio-Follow-Video switching

— When enabled, the Master Audio

automatically follows the last input selected, regardless of group (VGA,
S-video, or composite video).

This feature is disabled as a factory default. You must enable the feature
using an RS-232 serial command or the ICS100 Control Software.

Decoder loop function

— Converts all composite video signals to S-video using

an optional external composite video to S-video decoder.

This feature is disabled as a factory default. You must enable the feature using
an RS-232 serial command or the ICS100 Control Software.

Microphone input

— Built-in microphone amplifier and Microphone Talk Over

button, with adjustable talk-over threshold control and microphone
volume level control

+24V Phantom power

— For condenser microphones

Front panel control disable

— Locks out all front panel functions except input

selection. When the front panel controls are disabled, all controls are still
available through RS-232, RS-422, or RS-485 commands.

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