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Introduction
About this Manual
This manual describes the Extron SW2 DVI A and SW4 DVI A
switchers, and discusses how to install, configure, and operate
them. The terms "SW2/SW4" and "switcher" are used
interchangeably throughout this manual to refer to either model.
About the SW DVI A Series
The Extron SW DVI A Series switchers are two and four input,
one output, single link Digital Visual Interface (DVI) audio and
video switchers that select among multiple DVI-D input signals
for one compatible display device. They can accept and route
computer resolutions up to 1920x1200 or 1080p @ 60 Hz, and
have a pixel bandwidth of up to 165 MHz. All DDC (Display
Data Channel) and communication signals are switched from
the selected source to the output display.
The SW DVI A switchers can be controlled from the front
panel, through the RS-232 interface, or using the IR 102 Remote
Control. You can select video/audio inputs by pressing the
front panel buttons, by enabling autoswitching using a jumper
wire, by entering Simple Instruction Set (SIS
RS-232, or by pressing buttons on the IR 102.
N
The SW DVI A Series switchers are not compatible with
HDCP signals.
Features
Autoswitching — The SW DVI A Series can be configured
to automatically switch to the active input when the
SW2/SW4 detects a signal, thus providing hands-free
switching. If multiple input signals are present, the
switcher switches to the highest numbered active input.
Audio — The SW DVI A Series supports balanced and
unbalanced stereo audio signals.
Enclosure — The SW DVI A Series has a compact 1U high,
½-rack wide, 3.5 inches deep VersaTools
that can be easily placed or mounted in a variety of
locations.
Signal detection LEDs — Each input is represented by an LED
on the front panel. Each LED lights if a signal is present
for its input.
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SW DVI A Series • Introduction
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Independent input equalization — High and low equalization
levels for each input can be selected via the Input EQ
DIP switches on the front panel. This reduces the
need for additional signal conditioning equipment by
compensating for a degraded/poor quality signal.
EDID Minder — To enhance and simplify integration, the
switchers feature the EDID Minder, which manages
the EDID (Extended Display Identification Data)
information between the digital output device and all
the input sources. (EDID is the communications protocol
or instruction set that identifies the display device to
computers using the DDC transmission standard.)
Each time power is applied or recycled to the output
device or the display is replaced, the SW DVI reads
the EDID information from the display and writes it to
non-volatile memory on each switcher input. The input
devices can then read this information after they are
rebooted.
By maintaining continuous EDID communication with
all input sources, the EDID Minder ensures that all DVI
sources power up properly and maintain their video
outputs, whether or not they are actively connected to the
digital display device through the SW2/SW4 output.
Power supply — An external 12 VDC power supply with a
two-pin captive screw connector accepts 100 to 240 VAC.
Rack and furniture mounting — The SW DVI A Series can be
mounted on a rack shelf or under a desk or podium with
an optional mounting kit.
RS-232 control — You can control the switcher by issuing SIS
commands via an RS-232 connection.
IR remote control — The hand-held IR 102 Remote Control can
control the SW2/SW4 via infrared signals that it sends to
the switcher from a distance of up to 30 feet.
Front panel security lockout (executive mode) — To prevent
unauthorized access to the switchers, executive mode can
be enabled via the front panel or SIS commands. When
the switcher is in executive mode, all front panel controls
are disabled.
SW DVI A Series • Introduction
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