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Introduction
Thank you for purchasing a Key Digital Phantom Series
™
KD-HDDA HDMI Distribution Amplifier.
KD-HDDA Distribution Amplifiers are designed to interface your HDMI or DVI-D source device, such
as DVD player, Satellite Box, Digital Video Recorder (DVR), Set Top Box, or PC to multiple HDMI or
DVI-D compatible displays.
About the KD-HDDA1X2; KD-HDDA1X3; KD-HDDA1X4; KD-HDDA1X8
½Distribution of one HDMI input to multiple (2, 3, 4 or 8) HDMI outputs
½Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) resolutions up to
1080p (60Hz & 50Hz)
»SD & HD: 480i, 480p, 720p, 1080i, 1080p
»VESA / DVI: From 640x480p up to 1920x1080p
½EDID Control featuring 4 internal library settings or auto EDID selection of display
½Supports signal rates up to 10.2 Gb per second
½Supports HDMI and DVI-D
½Compliant with HDCP copyright protection
½Compliant with all HDMI
®
versions
½Supports CEC (Consumer Electronics Control)
½Input and Output status indicated by LED lights
½Firmware upgradable
½Rack mountable
DVI Applications for KD-HDDA1X2; KD-HDDA1X3; KD-HDDA1X4;
KD-HDDA1X8
KD-HDDA Distribution Amplifiers can also be used with DVI-D sources and displays. For these
applications, use DVI to HDMI (Key Digital model number KD-MFHDMI or KD-FMHDMI) adapters.
Note that while HDMI supports both video and audio over an HDMI cable, DVI-D supports only
video.
Accessories
½External power supply: 5V 3A
½Rack Ears ½Operating Instructions ½ Warranty Card
Installation and Operation
Before permanently securing the unit for final installation of cabling behind walls or ceilings, test
for proper operation of the unit and the cables in your system. It is recommended that you leave
enough ventilation space to provide sufficient airflow and cooling, especially if you are going to
leave the unit powered at all times.
Active Input / Output LED Indicators
½The front LED indicators indicate that a valid HDMI / DVI-D
connection is made between the KD-HDDA unit and each
Input / Output.
EDID Control Settings
At times, your HDMI sources and display may not synchronize properly. This is
when EDID* control should be utilized. KD-HDDA Distribution Amps feature an
internal library of default settings that ensure that your HDMI source’s output is
compatible with the display devices.
Dip Switch Configurations:
Configuration Description
000 Auto selection of highest common EDID of output devices
001 EDID copied from first connected output regardless of output number (1-8)
010 Video = 1080i, Audio = L/R Stereo
011 Video = 1080i, Audio = All Audio formats including HDMI 1.3a/b
100 Video = 3D 1080p, Audio = L/R Stereo
101 Video = 3D 1080p, Audio = All Audio formats including HDMI 1.3a/b
110 Video = 1080p Audio =L/R Stereo
111 Video = 1080p Audio = All Audio formats including HDMI 1.3a/b
All Others Highest common EDID of output devices
Example of EDID Auto Select:
If one of your system’s displays supports 1080p, however the second display only supports up to
1080i (does not support 1080p), then the highest common EDID format supported is 1080i. By
choosing the Auto Select EDID Setting, your KD-HDDA unit will inform your source device to output
1080i in order to ensure that all displays receive a supported signal.
*EDID (Extended display identification data) is a data structure provided by a display to describe its capabilities to a
source device.