Key Digital KD-S2x1X, KD-S4x1X Operating Instructions Manual
Rev 0 – March 2019
Key Digital®, led by digital video pioneer Mike Tsinberg,
develops and manufactures high quality, cutting-edge
technology solutions for virtually all applications where
®
high-end video and control are important. Key Digital
is at the forefront of the video industry for Home
Theater Retailers, Custom Installers, System Integrators,
Broadcasters, Manufacturers, and Consumers.
KD-S2x1X KD-S4x1X
2x1/4x1 (4K@60Hz/18G/444) HDMI Switchers with
L/R / Optical Audio & De-Embedded Audio Output
Operating Instructions
KD-S2x1X KD-S4x1X
Key Digital® :: 521 East 3rd Street :: Mount Vernon, NY 10553
Phone : 914.667.9700 Fax : 914.668.8666 Web : www.keydigital.com
The Experts in Digital Video Technology and Solutions
™
4 1
Table of Contents
Introduction .................................................................... 1
Quick Setup Guide ............................................................... 2
Application Example .............................................................. 2
Front & Rear Panel Connections, Buttons, and LEDs .......................................3
IR Remote Control................................................................7
Specifications ................................................................... 8
Important Product Warnings & Safety Instructions: ........................................ 9
Contacting Key Digital .............................................................9
Warranty Information.............................................................. 9
Visit product pages for most
recent version of the manual,
quick setup guide, firmware,
control drivers and all
additional downloads.
KD-S2x1X KD-S4x1X
Introduction
Key Digital® KD-S2x1X/KD-S4x1X are 4K/18G HDMI switchers engineered to offer the best in quality,
performance, and reliability, while providing a cost-effective HDMI switching solution. Designed for
professional audio video installations in presentation, theater, and gaming spaces, KD-S2x1X/KD-S4x1X
enables multiple video sources to connect to a single video display while L/R analog and Optical audio
de-embed ports may be used to feed audio of the selected source into amplifiers, DSPs, or sound bars.
KD-S2x1X/KD-S4x1X HDMI switchers support all SD, HD, VESA and Ultra HD/4K video standards with HDR
header information included in a variety of 4K EDID handshakes. The switchers feature push button and
optical IR switching, status-monitoring LEDs, and support of HDR10, HDCP 2.2 and 4K.
Key Features
› HDMI Switching: 2/4 HDMI sources to 1 HDMI output/display
› Ultra HD/4K Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4
(signals up to 18Gbps bandwidth)
› HDCP Licensing: Fully licensed and compatible with HDCP 2.2
› HDR10 (High Dynamic Range): More life-like images through a greater range of luminance levels
› Resolution Support: Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) up to
4096x2160p.
› Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit
› Audio De-embedding: Audio of the selected HDMI input is output at the digital Optical and analog
3.5mm stereo connectors.
› Auto-Sensing: Automatic selection of newly detected source and switching from newly
disconnected source via hot plug detection voltage when enabled
Atmos
™
: Manages TMDS re-clocking / signal re-generation, HDCP authentication to
®
TrueHD, Dolby® Digital Plus, DTS-HD Master Audio™,
®
Pro ready. Fully controllable by all IR supported control
› Full Buffer System
source & display, and EDID Control handshake
› EDID Management: Internal library with 15 internal EDID handshakes including 4K with HDR in
addition to native EDID data copied from the output/display
› Lossless Compressed Digital Audio: Dolby
and Dolby
› CEC Pass-thru: From connected display to selected HDMI source
› Control: Front panel buttons/LEDs, Optical IR
› Control System Support: Compass Control
®
systems.
Always follow the instructions provided in this Operating Manual.
› Note: Please visit www.keydigital.com for the latest product documentation and software downloads.
Product features and specifications are subject to change without notice.
© 2019 Key Digital, Inc. All rights reserved.
Included Accessories
› Power Supply: KD-PS5V1ASC 5V/1A DC power jack, screw-in type
› IR Remote Control: KDRMSWPROK
› Mounting Brackets: 2 L-shaped
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