Key Digital KD-ADA4 Mode D'Emploi

521 East 3rd Street, Mount Vernon, NY 10553
Phone

914.667.9700 Fax

914.668.8666

Web

www.keydigital.com

Specification Sheet

General:

4-channel component (and composite) video distribution
Crystal-clear video distribution, with cable runs up
to 1000 feet long
Supports all HD and SD video formats, 60 Hz and 50 Hz
Supports Left and Right analog stereo, or digital PCM audio
distribution
Cascadeable, so you can easily expand and future-proof your
system

Inputs:

There is 1 HDTV/SDTV Input Group, consisting of 6 color-
coded RCA female connectors for inputting:

Component Video (YPrPb) with composite sync on “Y”
Composite Video (CV) or digital PCM audio
One analog audio (standard line-type Left & Right pairs)

Outputs:

There are 4 discrete Output Groups, and each Output Group
consists of 6 color-coded RCA female connectors for
outputting:

Component Video (YPrPb) with composite sync on “Y”
Composite Video (CV) or digital PCM audio
One analog audio (standard line-type Left & Right pairs)

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Signal Properties:

All known video formats are accepted
Output scanning format is always the SAME as the input
scanning format
Component Video

Bandwidth -3 dB at 120 MHz, linear-phase passband
Unity-gain, 1 volt p-p, terminated to 75 ohms
Composite sync on “Y” channel

Audio

Bandwidth flat 20 Hz to 50 MHz
Analog (standard line-type Left & Right pairs)
Digital PCM audio

Modes of Operation:

The six (6), 8-bit DIP Switches must be set to the desired
Operating Mode, as described in the Operation Manual

ADA4 Mode:

Distribution of your YPrPb and Left & Right analog and
digital PCM audio inputs to as many as four separate
Component Video monitors
Distribution of your YPrPb and Left & Right analog audio
and Composite Video (CV) inputs simultaneously to as
many as four separate Component Video and Composite
Video displays

PCMD4 Mode:

Distribution of your single digital PCM audio input to as
many as 13 separate destinations
Distribution of your single Composite Video (CV) input to
as many as 13 separate destinations

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Adjustments (on front panel)

Independent gain control adjustment provided for all four
Output Groups for all video signals (YPrPb & Composite
Video) to compensate for excessive cable lengths up to
1000 feet
Sixteen (16) front-panel adjustment potentiometers

Adjustment procedure is based on measured output
cable resistance
Each run of YPrPb cable must be the same length
per output

Mechanical:

Easy to install and integrate – Custom Installer’s dream
Connectors and cables are all located on the rear of the unit

All video and audio inputs and outputs have color-coded
RCA female connectors
5-pin DIN power connector

Cable compensation adjustment potentiometers are on the
front of the unit
Rack mountable: 1U
Size: 17” x 8” x 1.5”
Weight: 4 lbs.
Enclosure type: Metal
Input Power: External power supply provided, 110-240V AC,
50-60 Hz, 0.9A

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Key Digital

Exclusive Technologies

KD-ADA4

KD-ADA4 is a 4 Channel Component/RGBHV Video/Audio Distribution Amplifier,
with capability of allowing cable runs up to 1,000 feet