Communications Specialties Application Note

USING Deuce PRO VIDEO SCALER

AS A SYSTEM SWITCHER

MARKET: A/V, Corporate

DOC. NUMBER: T-13

A common requirement for many professional

A/V installations is the ability to use a single display

device to show a variety of normal, standard defini-

tion TV signals (SDTV) and computer sources. The

ability to easily control the switching between these

various sources, via a third party remote control, is

essential in creating an easy to use and professional

system.

Other key requirements are the ability to simulta-

neously switch audio signals with their correspond-

ing video signals (“audio-follow-video”) and to pro-

vide a video signal to a confidence monitor at the

speaker’s control area.

This TECHnique will explain how Deuce

Pro

Intelligent Video Scaler allows for easy switching of

multiple SDTV signals along with computer and

audio signals.

Deuce Pro accepts SDTV inputs on three sepa-

rate inputs and will scale these signals to any of ten

resolutions (both 4:3 and 16:9 ratios). Inputs #1 and

#2 each have a composite (BNC) and S-Video (4-

pin mini DIN) connection. Input #3 has 4-BNCs for

either component (YUV) or RGB Analog signals.

Input #4 is a 15-pin HD which allows for passive

switching of computer signals.

Ideally, the user should set the computer source

to the optimal resolution for the display device (known

as the “native resolution”) and also set Deuce Pro

to scale the SDTV inputs to this same native resolu-

tion. Then, by selecting different inputs on Deuce Pro,

the user can switch between any of the connected

sources, with each source now “scaled” to match

the native resolution to the display device. As a re-

sult, the display will perform to its top potential,

Deuce is a registered trademark and QuadSwitch is a trademark of Communications Specialties, Inc.

Communications Specialties Application Note

Page 2:

USING Deuce PRO VIDEO SCALER AS A

SYSTEM SWITCHER

generating the sharpest, brightest and clearest

image.

Deuce Pro also provides for audio-follow-video

switching of stereo line level audio signals with each

input. This allows the user to input audio from stan-

dard VCR’s, DVDs and computer sound cards and

route these audio signals with the source video sig-

nal directly to the display device or into a larger

sound system.

Deuce Pro features complete control of all func-

tions via an intuitively designed, easy-to-use front

panel. Since Deuce Pro allows for complete remote

operation via RS-232, it can be fully integrated into a

third party control system.

•

Deuce Pro Intelligent Video Scaler ........... 2210A

CAB-43; Coaxial Cable .............................. 1143

CAB-19; VGA Cable ................................... 1119

CAB-59; Composite Video Cable ............... 1159

CAB-30; S-Video Cable ............................. 1130

QuadSwitch™ for VGA .............................. 1340

Deuce Pro provides two simultaneous, buffered,

scaled outputs. This allows for one output to be

routed to the display device and the other to a con-

fidence monitor.

In addition, Deuce Pro offers a VGA “pass-though”

output. This can be used to accommodate the VGA

video input often found on the touch screen panel

for the control system in boardrooms and larger A/

V systems. Using this input enables the user to over-

lay the control system program with the same video

that is being viewed on the main display.

The number of inputs for Deuce Pro can be ex-

panded by integrating switchers into the system. For

example, the Communications Specialties Inc.

QuadSwitch™ for VGA accepts up to four VGA in-

put signals. By connecting the control system to the

RS-232 ports on both Deuce Pro and QuadSwitch

for VGA, the control system can allow the user to

select any one of four VGA signals to be routed

through Input #4 on Deuce Pro.

•

Educational Guides:

• Introduction to Video Scaling

• Advanced Video Scaling

•

T-07 Using Deuce Video Scaler in Videoconferencing

Applications

•

T-05 Using Deuce Video Scaler in Video Cube and

Video Wall Applications

•

T-12 Using Deuce to Match The Native Resolution of

a Display