Key Digital KD-HDMI2X1 User manual

521 East 3rd Street, Mount Vernon, NY 10553
Phone :: [phone] Fax :: [phone]
Web :: www.keydigital.com
KD-HDMI2x1 & 4x1 Operating Instructions
Key Digital
®
, led by digital video pioneer Mike Tsinberg,
develops and manufactures high quality, cutting-edge
technology solutions for virtually all applications where
high quality video imaging is important. Key Digital
®
is at the forefront of the video industry for Home
Theater Retailers, Custom Installers, System Integrators,
Broadcasters, Manufacturers, and Consumers. We
provide total video system solutions because we
know and help drive the technology, the industry, the
business, and all the latest up-and-coming standards.
But most of all, we know exactly what you need for your
unique application - the right solution.
Rev 0 – December 2006
KD-HDMI Chroma Series
™
switchers by Key Digital
®
are state-of-the-art HDMI (HDCP-
compliant) multi-input to one output switchers that maintain crystal-clear, pristine picture
and sound quality. KD-HDMI switchers are a transparent solution for home theaters,
custom installers, retailers, and all digital video/audio switching applications. KD-HDMI
switchers support ALL digital HD and SD video standards including 1080p/60, and a
multitude of analog and digital audio formats. KD-HDMI Chroma Series
™
switchers feature
iAS
™
Intelligent Auto Sense signal detection and switching, pushbutton control, status-
monitoring LEDs, IR remote control, and support for HDMI’s CEC. KD-HDMI switcher
support multiple unit expandability, are individually addressable and DVI-D compatible
with Key Digital
®
adapters and cables.
KD-HDMI2x1 KD-HDMI4x1
Operating Instructions
KD-HDMI2x1
2 to 1 HDMI Switcher
KD-HDMI4x1
4 to 1 HDMI Switcher
KD-HDMI2x1_4x1_Manual.indd 2-1 12/12/06 5:13:59 PM

KD-HDMI2x1 & 4x1 Operating Instructions
Page 2
KD-HDMI2x1 & 4x1 Operating Instructions
Page 1
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are provided for your safety. If
the provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.
Unplug this apparatus during lightning storms or when unused for long periods of time.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Important Safety Instructions.
Please be sure to follow these instructions for safe operation of your unit
TABLE OF CONTENTS
About the KD-HDMI2x1 and KD-HDMI4x1......................................... 2
Key Features ............................................................... 3
What’s Included ............................................................. 3
Application Examples ........................................................ 4
Getting Started ............................................................. 8
Basic Operation.............................................................13
IR Remote Control ...........................................................14
Firmware Upgrades ..........................................................16
Terminology ................................................................17
HDMI to DVI-D Conversion ....................................................18
Technical Specifications ......................................................19
How to Contact Key Digital
®
....................................................21
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
C A U T I O N
risk of electric shock
do not open
The lighting flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle
is intended to alert the user to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
cAUtion: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Always follow the instructions provided in this Operating Manual.
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 2
KD-HDMI2x1 & 4x1 Operating Instructions
Page 3
ABOUT KD-HDMI2x1 & KD-HDMI4x1 SWITCHERS
Thank you for purchasing a Chroma Series
™
KD-HDMI switcher by Key Digital
®
.
KD-HDMI Chroma Series
™
switchers support HDMI video, various digital and analog audio formats.
Any one of multiple HDMI and audio inputs can be routed to the output. Video resolutions up to
1080p/60 and HDCP copy protection are supported. The switcher is DVI-D compatible with Key
Digital
®
adapters and cables.
KD-HDMI switchers are easy to control by using a top-panel pushbutton, IR remote control, IR
extender, or RS-232. The audio output format is user-selectable. Status-monitoring LEDs allow you
to quickly see your choices.
The successful installation and operation of your KD-HDMI switcher with your video and audio
system is very important to us at Key Digital
®
. Please contact Key Digital
®
immediately at
[e-mail] if you encounter any difficulties.
KD-HDMI Chroma Series
™
switchers simultaneously switch HDMI digital HD and SD video and
audio, and are DVI-D compatible with Key Digital
®
adapters and cables. The switcher also allows
you to separately select an audio source for output on RCA jacks either: digital PCM audio or
analog left & right stereo audio.
All the features of the KD-HDMI can be controlled via a top-panel pushbutton switch, IR remote
control, Wired IR, or RS-232. Conveniently located status-monitoring LEDs allow you to monitor the
status of your selections.
KD-HDMI switchers are designed to interface your HDMI or DVI-D source devices, like your DVD
player, Satellite Box, HD DVR, Set Top Box, or even your PC, to your display with an HDMI or DVI-D
input, all the way up to 1080p/60 resolution. Handles ALL frame rates and clock rates up to 165
MHz. KD-HDMI switchers are engineered for crystal-clear switching, delivering picture-perfect
images to your displays and audio to you sound system.
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
PowerON OFF
Input1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
PowerON OFF
Input1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
KD-HDMI2x1
KD-HDMI4x1
KEY FEATURES
Digital switching of multiple (2 or 4) HDMI inputs to one (1) HDMI output
Compatible with all video resolutions
Auto sensing signal presence and switching to active input
Supports HDMI, Toslink, PCM and analog L/R Audio
Compliant with HDCP Copy Protection
Supports CEC (Consumer Electronics Control)
Pushbutton control, and corresponding LEDs for status
HDMI hot-plug detect LEDs provided on the input HDMI connectors
Easy-to-operate IR remote control
RS-232 port
Wired IR control port
Compatible with all control systems
Firmware upgradable
Built-in mounting flanges
Technology
Key Digital
®
technology allows us to deliver the highest level of picture quality attainable in all of our
products, like the proprietary technology we engineered for you into the KD-HDMI:
WHAT’S INCLUDED
The carton contains:
One KD-HDMI switcher unit
Separate external 5-Volt power supply
IR remote control with batteries included
Operating Instructions
Warranty card
›
›
›
›
›
›
›
›
›
›
›
›
›
›
1.
2.
3.
4.
5.
Key Digital
®
Exclusive Technologies Supported Technologies
CAUTION: When installing the unit, make all video connections before plugging
in the external power supply provided with your unit. Do NOT apply power to
the unit until all video and audio connections have been made to your KP-HDMI
unit from the “source” devices to the display(s) and/or devices. You MUST use
the external power supply provided with your unit or you VOID the Key Digital
®
Warranty and risk damage to your unit and associated equipment.
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 4
KD-HDMI2x1 & 4x1 Operating Instructions
Page 5
A typical KD-HDMI2x1 application with DVI Video and Analog/PCM Audio A typical KD-HDMI4x1 application with DVI Video and Analog/PCM Audio
HDMI/DVI*
Audio
Audio
back
front
Audio
HDMI/DVI*
RS232 Control
Wired IR
IR Control
IR Control
Surround Sound
KD-HDMI2x1
Cable Box
DVD Player
Projector
HDMI/DVI*
*To connect DVI Video use
HDMI < > DVI adapter cables
HDMI/DVI*
HDMI/DVI*
HDMI/DVI*
Audio
Audio
Audio
Audio
Audio
HDMI/DVI*
back
front
RS232 Control
Wired IR
IR Control
IR Control
Surround Sound
KD-HDMI4x1
Plasma TV
DVR Player
Cable Box
Satellite Box
DVD Player
HDMI/DVI*
*To connect DVI Video use
HDMI < > DVI adapter cables
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 6
KD-HDMI2x1 & 4x1 Operating Instructions
Page 7
A typical KD-HDMI2x1 application with HDMI and optional Toslink Audio A typical KD-HDMI4x1 application with HDMI and optional Toslink Audio
HDMI
back
front
HDMI
Toslink Audio
Toslink Audio
RS232 Control
Wired IR
IR Control
IR Control
Surround Sound
KD-HDMI2x1
Cable Box
DVD Player
Projector
HDMI
HDMI
HDMI
HDMI
HDMI
HDMI
Toslink Audio
Toslink Audio
back
front
RS232 Control
Wired IR
IR Control
IR Control
Surround Sound
KD-HDMI4x1
Plasma TV
DVR Player
Cable Box
Satellite Box
DVD Player
HDMI
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 8
KD-HDMI2x1 & 4x1 Operating Instructions
Page 9
2. Connect your HDMI sources to the input ports of your KD-HDMI unit.
A typical INPUT PORT receives sources of
HDMI video and a variety of audio options.
Do not connect the external 5 Volt DC supply (provided) to the back
of the KD-HDMI unit until ALL your video and audio connections to
the KD-HDMI unit are complete
3. Connect your HDMI Display to the output port of your KD-HDMI unit.
If the display you would like to connect to your KD-HDMI unit has only a DVI-D
connector, then you can use a Key Digital
®
HDMI to DVI-D adapter at the KD-
HDMI output, followed by a DVI-D cable, to connect from the output of your
KD-HDMI to the DVI-D input of the display. Note that while HDMI supports
both video and audio over an HDMI cable, DVI-D supports video only and will
therefore require that you connect any audio outputs separately.
4. Audio to your monitor is supplied over the HDMI link. If you choose to use
another source or have a 5.1 surround sound system, the following information
will help you set up your audio. If you are using the audio provided via the HDMI
audio link only, then you may skip Step 4 and proceed to Step 5.
In addition to the audio provided over the HDMI link, you have the following input options to the KD-
HDMI for audio sources [see note 1]:
Toslink optical audio inputs (Toslink connectors):
A Toslink output is derived from one of the Toslink inputs as controlled via “Input Select”
Digital PCM audio inputs (white RCA female jacks):
Available at the outputs of the KD-HDMI on the white [left] RCA female jack
Analog stereo left & right audio inputs (RCA female jack pairs: [white = left] & [red = right):
Available at the output of the KD-HDMI on the RCA female jack pairs
[1] The white [left] RCA female jacks are shared among these signals for each of the four separate output banks, so
only one of these audio formats [Toslink optical converted to digital PCM, digital PCM, or analog stereo left & right] is
possible at a time.
All audio inputs and outputs have color-coded
RCA female jacks. For analog stereo audio,
remember to follow and maintain the color code:
[white = left] & [red = right].
›
➔
›
➔
›
➔
GETTING STARTED
Your KD-HDMI switcher by Key Digital
®
is easy to configure and operate. In this section, you will
first connect all of your video and audio input and output devices to your KD-HDMI unit. These
are the topics covered in detail in this section of the Operating Manual that you must follow for the
proper installation of your KD-HDMI unit:
Find a safe and convenient location to secure, mount, or place your KD-HDMI unit.
Connect your HDMI or DVI-D source devices to the input ports of your KD-HDMI unit.
Then connect your HDMI or DVI-D Displays to the output ports of your KD-HDMI unit.
If you do not plan on using the audio available from your sources over the HDMI link,
then connect your audio sources to the RCA and/or Toslink input ports of your
KD-HDMI unit.
Connect the Control inputs to your KD-HDMI unit, if desired.
Be sure the Operation Mode Switch is set to the “Normal” position.
Finally, connect the power supply provided with your KD-HDMI unit.
1. Find a safe and convenient location for your KD-HDMI unit.
A KD-HDMI unit dissipates power during normal operation, thereby it is recommended to leave
enough ventilation space to provide sufficient airflow and cooling, especially if you are going to
leave the unit “On” most of the time.
Be sure to allow sufficient airflow, and do not cover the ventilation openings on the side of the unit.
Before final installation of cables behind walls or ceilings, and permanently securing the
unit, it is recommended to test for proper operation of the unit and cables in your system.
Important notes about digital Cables and Cable lengths:
1.
2.
3.
4.
5.
6.
7.
Convenient mounting flanges are built into
the unit. Use proper care to secure the unit
to walls or other surfaces, using appropriate
anchors and/or mounting hardware [not
included with your unit].
CAUTION: Always test first, before permanently installing the KD-HDMI
Always test the picture quality, integrity of the connections, and overall operation
before permanently installing any new component in your system, and especially
before cables are pulled behind walls or ceilings.
It is recommended that you always use high-quality HDMI (or DVI-D, if applicable)
cables, like those available from Key Digital.
Limitations of the HDMI devices and/or the use of inferior cables may further restrict
the length of your cable runs.
When using an HDMI cable extender, like the Key Digital
®
KD-HDB150, always
test first for proper operation and error-free picture & audio quality, and follow the
instructions provided with the unit for proper installation and configuration.
➔
➔
➔
The OUTPUT PORT drives one display
and audio system.
HDMI Video
& Audio
Analog Audio
Left &Right
Toslink Optical
Digital PCM Audio
HDMI Video
& Audio
Left/PCM
& Right
Toslink Optical
Digital PCM Audio
HDMI Video
& Audio
Analog Audio
Left &Right
Toslink Optical
Digital PCM Audio
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 10
KD-HDMI2x1 & 4x1 Operating Instructions
Page 11
RS-232 Control
You may want to tie the KD-HDMI into your Home Theater control system using the RS-232 port.
The unit is compatible with control systems, such as Crestron, Elan, AMX, or Control4:
Connect your Home Theater Control System to the KD-HDMI unit using the RS-232 port.
Follow all instructions provided with your Control System.
RS-232 Commands
The table below lists the RS-232 Commands that allow you to control your KD-HDMI switcher unit
operating at a Baud Rate of 19200, 8 Data Bits, 1 Stop Bit and No Parity.
Command Name Description Usage
a select audio input type present on
RCA L/R jacks
a0 for analog audio
a1 for PCM audio
h help
s status
pn power on
pf power off
i (KD-HDMI2x1) select source input i<1~2>
ia for auto selection (IAS
™
)
i (KD-HDMI4x1) select source input i<1~4>
ia for auto selection (IAS
™
)
l lock buttons
u unlock buttons
rl IR remote lock
ru IR remote unlock
d Address assignment d<00~99>
d00 for stand-alone mode
Multiple KD-HDMI Unit Configuration
Up to 99 individually addressable units can be installed. This capability can be configured only via
the RS-232 port.
“00” is the address for a stand-alone unit.
To assign a new address to a unit issue the command:
“d<00~99>”.
For example, to assign address “01” to a unit, enter: “d01”.
After configuration of multiple units is complete the IR remote can be used to control any KD-HDMI.
The IR command sequence to switch to input 2 of unit at address “01”:
“0” -> “1” -> “Input 2”
›
›
›
›
5. Controlling your KD-HDMI unit
Pushbutton Switch
Your KD-HDMI unit may be controlled using the pushbutton switch on the top of the unit:
Top- and side-mounted LEDs indicate your selections
IR remote control
The KD-HDMI can also be operated using the IR remote control provided with your unit:
Front and side IR sensors are provided for best IR coverage
Install the batteries as indicated in the hand-held IR remote control unit.
IR extender
When using IR extender, the IR flasher (part of IR extender – purchased separately) must be
mounted over the IR receiver opening as marked on KD-HDMI unit.
Alternatively, a Wired IR port can be used. Wired IR port requires the use of Male/Male 3.5mm
mono cable. One end of the cabe is connected to the IR extender’s flasher output port, while the
other end is connected to the Wired IR port of your KD-HDMI unit.
Wired IR serial connector provided, uses a Xantech compliant interface.
Use a 3.5mm male-to-male mono cable to connect to the wired IR Extender to the KD-HDMI.
›
›
➔
›
›
Wired IR Extender KD-HDMI Unit
3.5mm male-to-male mono cable
Control Options for KD-HDMI switcher
Wired IR Extender
Main IR Sensor
RS-232
Key Digital®Exclusive Technologies Supported Technologies
Key Digital®Exclusive Technologies Supported Technologies
Key Digital®Exclusive Technologies Supported Technologies
Key Digital®Exclusive Technologies Supported Technologies
Key Digital®Exclusive Technologies Supported Technologies
Second IR Sensor
Can be used in conjunction
with IR Extender (like
Xantech) or to operate the
unit with your IR Remote
control
Be sure the Operation
Mode switch is in
“Normal” Position
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
PowerON OFF
Input1 Input 2 Input3 Input4
R1 R2 R3
Auto
Select
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
PowerON OFF
Input1 Input 2 Input3 Input4
R1 R2 R3
Auto
Select
KD-HDMI2x1_4x1_Manual.indd 10-11 12/12/06 5:14:45 PM

KD-HDMI2x1 & 4x1 Operating Instructions
Page 12
KD-HDMI2x1 & 4x1 Operating Instructions
Page 13
BASIC OPERATION
This section of the Operating Manual guides you on how to use your KD-HDMI switcher with the
front-panel pushbutton switches. LEDs are provided so that you can monitor your selections.
1. User Control.
Since your switcher has multiple input sources for video and audio that may be switched to your
display and audio system, you need to make the following selections:
a) Select the input source that you want to send to your display and speakers (or audio
system).
The KD-HDMI allows you to select an input source to be switched to your display. Because HDMI
is has auto-sensing capabilities, your source device always knows the capabilities of your display.
The selected source provides video and audio over the HDMI link. The selected input serves as the
audio source.
b) Select the type of audio you want to send to your speakers or audio system.
Different Color LEDs correspond to the
selection of the input Switch Control.
6. Be sure the Operation Mode Switch is set to the “Normal” position.
Once you have made all the video connections to your KD-HDMI, be sure the Operation Mode
Switch located on the side panel of the unit is to the “Normal” position.
The slide switch labeled “Operation” is a
Mode Switch that must be set to “Normal” for
proper operation of your unit. Only slide the
switch to the “Mode A” position if you perform
a Firmware Upgrade.
Slide the Operation Mode Switch located on the side of your unit to the “Normal”
position for proper operation. Do NOT slide the switch to the Mode A position and
apply power, or you may start an unwanted Firmware Upgrade of your unit. If you
do so, immediately disconnect power from your unit and contact Key Digital
®
.
7. Finally, connect the power supply provided with your KD-HDMI unit.
When all equipment is connected to your KD-HDMI and the Operation Mode switch is in the
“Normal” position, you can now plug in the external 5 VDC @ 5 Amp Power Supply (provided with
your unit) to the jack on the back of the unit. Then connect the power cord from the power supply
into an appropriately rated wall outlet or power strip.
You MUST use the Power Supply provided with your unit or you
VOID the Key Digital
®
Warranty and risk damage to your unit and
associated equipment.
Carefully insert the power
supply connector to the
back of your KD-HDMI unit.
Analog Audio
Left / PCM Toslink Optical
Audio
Each of the HDMI input connectors has a hot-plug detect LED, as an indicator that there is an
active HDMI source present at the connector.
The green LED used here indicates that an active HDMI link between the selected input source
and the output HDMI sink (display) is established and is in progress.
Analog Audio
Right
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 14
KD-HDMI2x1 & 4x1 Operating Instructions
Page 15
IR extender
You may also want to use an IR extender, such as available by Xantech:
A rear panel sensor is perfect for use with Xantech IR extender
A wired IR serial connector is also provided
You’ll need to either mount the IR extender on the side of the KD-HDMI unit, or connect the
serial connector cable.
›
›
IR Remote Control buttons
IR REMOTE CONTROL
All the functions of the KD-HDMI can be remotely accessed using the IR remote control supplied
with your unit. The status-monitoring LEDs on the KD-HDMI will light to indicate the selections you
make with the IR remote control, just like when you use the pushbutton switch.
The IR remote control unit is based on Infrared technology, so you need a clear line-of-sight from
the handheld control to the IR sensors located on the KD-HDMI. Always point the front of the
remote control directly at the IR sensors located on the KD-HDMI unit.
The IR remote control may not operate properly if there are objects placed between it and the IR
sensors located on your KD-HDMI switcher.
Be sure that you have installed the batteries in the handheld remote control unit. Periodically
replace batteries in the handheld unit, as the operational distance of the remote control is
affected by a weakened power source.
The handheld IR remote control allows you to quickly and conveniently perform the input selection.
The following figure of the IR remote control that is provided with your KD-HDMI unit indicates the
functions of each pushbutton and hence all of the functions you can remotely control.
›
›
›
2. Input Selection
Press the pushbutton to until you reach your desired input selection. Monitor your selection with
the LEDs.
a) Select the input source that you want to send to your display.
The Auto-sensing will detect and switch to the active HDMI source input, automatically. If an active
source is present on Input 1 it is automatically switched to the output. If an active input is not
present on Input 1 then the inputs are scanned sequentially and switch the output to the first active
input found.
b) The output audio follows input selection switching.
Using the “Input Select”
pushbutton, cycle through
selection of all input sources.
Monitor each selection with
the LEDs located on the top
and side of your unit.
INPUT SWITCH CONTROL
pushbutton selects the input
Source that you want to send to
your displays and audio systems.
LEDs show your selection.
Top of the Unit
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
Power ON OFF
Input 1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
Power ON OFF
Input 1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
ON
Turns Unit On
Auto Input Select
Input Select Scroll Up
Input Select
OFF
Turns Unit Off
Input Select Scroll Down
Numeric Keypad
Used in addressable
mode for specifying
unit’s address
R1, R2, R3
are Reserved
for future use
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
Power ON OFF
Input 1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
www.keydigital.com
1 2 3
4 5 6
7 8 9
0
Power ON OFF
Input 1 Input 2 Input 3 Input 4
R1 R2 R3
Auto
Select
Wired IR Extender KD-HDMI Unit
3.5mm male-to-male mono cable
KD-HDMI2x1_4x1_Manual.indd 14-15 12/12/06 5:14:58 PM

KD-HDMI2x1 & 4x1 Operating Instructions
Page 16
KD-HDMI2x1 & 4x1 Operating Instructions
Page 17
TERMINOLOGY
Some of the terms and acronyms that you will see recurring in this Key Digital
®
HDMI Switcher
Operating Manual are listed below.
CEC Consumer Electronics
Control
CEC is an optional protocol used in HDMI systems that allows
HDMI devices to pass control functions along to all devices within
the system.
DVI-D Digital Video Interface
- Digital
DVI-D is a digital interface standard created by the Digital Display
Working Group (DDWG) to convert analog video signals into digital
video signals to accommodate digital monitors. Typically used for
PC monitors, the video portion of HDMI as compatible with DVI-D
using simple adapters.
EDID Extended Display
Identification Data
EDID is a VESA standard data format that contains basic
information about a monitor and its capabilities. Information
includes vendor information, maximum image size, color
characteristics, factory pre-set timings, frequency range limits, and
character strings for the monitor name and serial number.
HDCP High-bandwidth Digital
Content Protection
HDCP is the copy protection scheme adopted for use with HDMI.
HDMI High-Definition
Multimedia Interface
HDMI is an uncompressed, all-digital audio/video interface that
supports over one cable standard-, enhanced-, and high-definition
video, and multi-channel audio. It is backward compatible with
DVI-D for the video portion, using simple adapters.
IR Infrared IR, like the Infrared remote control. Simply point the front of an IR
remote control unit towards the IR sensor on the product to be
controlled.
LED
LEDs (light-emitting diodes) are like small light bulbs that light up
to indicate a selection, and are used as status indicators.
PCM,
digital
PCM
Pulse Code Modulation PCM is a sampling technique for digitizing analog signals,
especially audio signals. PCM samples the signal 8000 times
a second; each sample is represented by 8 bits for a total of 64
kbps. Used in this Operating Manual to refer to digital audio.
RCA jack
An RCA jack or what was called a “phono plug” is an industry
standard audio connector used for the audio inputs and output of
KD-HDMI units. The left [white] jack is used for the digital audio
formats. Analog stereo audio uses both jacks, where white = the
left channel, and red = the right channel.
SPDIF,
S/PDIF
Sony/Philips Digital
Interface
SPDIF (also written as S/PDIF) is a standard audio file transfer
format, developed jointly by Sony and Philips corporations. S/PDIF
allows the transfer of digital audio signals from one device to
another without having to be converted first to an analog format.
Toslink
™
,
Toslink
Toslink was originally
created by Toshiba to
connect their CD players
to their receivers for
PCM audio streams
Toslink
™
(also written as TOSLINK
™
) is a standardized optical fiber
connection system, most commonly used in consumer audio
equipment to carry a digital audio stream between components.
FIRMWARE UPGRADES
From time-to-time, Key Digital
®
provides updates for the Firmware that operates and controls your
KD-HDMI. These updates are optional, and you should only perform upgrades as provided and
instructed by Key Digital
®
. Periodically check our web site at www.keydigital.com for the latest
firmware updates for your unit.
Should a Firmware Upgrade be available that you are interested in installing, please contact Key
Digital
®
([e-mail]) with the Serial Number of your unit to determine the correct Firmware
Upgrade procedure.
You will then be instructed to go to our web site at www.keydigital.com for the Firmware Upgrade
instructions and file downloads.
Firmware Upgrade Procedure
Please review all steps first, before proceeding to upgrade your Unit.
Make sure you have the required equipment for upgrade:
a. PC with a serial port capable of 19200 Baud rate
b. Straight male-female DB9 serial cable (Null-modem NOT supported)
no longer then 10 ft.
Set the rear-panel Mode slide switch to “Mode A” mode.
Check our web site at www.keydigital.com for the latest firmware update ZIP file. Download
and unzip the firmware ZIP file to any directory on your PC. All of the unzipped files that are
created MUST be located in same directory on your PC.
Make sure that no devices are using the COM1 serial port on your PC.
Connect an RS-232 cable to the COM1 serial port on your PC, and the other end to the
RS-232 port on the rear panel of the KD-HDMI unit.
Double-click the “HDMIxx.BAT” file. The command mode window should pop up. Use this
pop-up window to monitor the progress of the Firmware Upgrade.
If an error occurs, check your RS-232 connection and repeat all of the above steps.
When the download is complete, disconnected the power supply form your KD-HDMI unit.
The power supply MUST be disconnected (either from the back of your unit or from the wall
outlet) to have a complete power shutdown - reset.
Disconnect the RS-232 cable between the unit and your PC
With the power disconnected, set the rear-panel Mode slide switch to “Normal” mode.
Reconnect the power supply to your KD-HDMI unit. The Firmware Upgrade is complete,
and your KD-HDMI unit is ready for operation.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 18
KD-HDMI2x1 & 4x1 Operating Instructions
Page 19
TECHNICAL SPECIFICATIONS
Model #: KD-HDMI4x1 & KD-HDMI2x1 Switchers
HDMI 4-input or 2-input switcher features
Digital switching of multiple (2 or 4) HDMI inputs to one (1) HDMI output:
Input signal presence sensing and auto switching of output to active input
HDMI Type A 19-pin connectors
HDMI functionality with hot plug auto sense detection
Supports DVI-D video inputs and outputs with Key Digital
®
HDMI / DVI-D adapters and cables
Supports products compliant with HDCP Copy Protection
Supports CEC (Consumer Electronics Control)
Video & Audio Formats Supported
HDMI Video & Audio:
Handles clock rates up to 165 MHz
Compatible with all video resolutions, including:
Up to 1080p/60
ALL frame rates, including 60 Hz, 50 Hz, and 72 Hz refresh rates
Supports products with HDCP (High-bandwidth Digital Content Protection)
In addition to the audio over the HDMI link, supports the following audio formats:
Toslink Optical audio inputs and output
Digital PCM audio inputs and outputs
Analog stereo left & right audio inputs and outputs
Video & Audio Input Banks
Up to four (4) HDMI Video/Audio input banks labeled “Input 1” ,“Input 2” and “Input 3” and “Input
4” on the front panel, with the following connectors:
HDMI Video & Audio: HDMI Type A 19-pin connectors
In addition to audio over the HDMI link, input options for audio include:
Toslink optical audio inputs (Toslink connectors)
Digital PCM audio inputs (white RCA female jacks)
Analog stereo left & right audio inputs (4 or 2 RCA female jack pairs: [white = left & red = right]
Video & Audio Output Bank
One (1) HDMI Video/Audio output bank labeled “Output 1” on the rear panel, with the following
connectors:
HDMI Video & Audio: HDMI Type A 19-pin connector
In addition to the audio provided over the HDMI link, output options for audio include:
Digital PCM audio outputs (white RCA female jack), if digital PCM is input from a source
Toslink optical audio
Analog stereo left & right audio outputs (2 RCA female jack pairs: [white = left] & [red = right])
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HDMI TO DVI-D CONVERSION
If a source or display you would like to connect to your KD-HDMI unit has only DVI-D connectors,
then you should use Key Digital
®
HDMI to DVI-D adapters at the source output, followed by an
HDMI cable, to connect that source to the HDMI connector inputs of your KD-HDMI. Note that
while HDMI supports both video and audio over an HDMI cable, DVI-D supports video only and will
therefore require that you connect any audio source separately to the KD-HDMI.
DVI-D Sources
If your source does not support HDMI but has a DVI-D output, you will need a
DVI-D to HDMI Adapter at the output of your source.
The Key Digital
®
DVI-D to HDMI Adapter is the perfect choice.
Key Digital DVI-D
to HDMI Adapter
Destination HDMI Input
on KD-HDMI
Source DVI-D
Output
Use extreme care when adapting DVI-D to HDMI and HDMI to DVI-D.
Always use an adapter at the source (that is, at the start of the run), test first
before installing permanently in your system, and restrict your cable lengths as
follows:
30-foot maximum or less for 1080p/60 video resolution DVI-D cables driven from
HDMI with an HDMI to DVI-D adapter.
Cable length extenders must be installed per their product instructions and must be
tested before permanent installation.
➔
➔
Key Digital HDMI to
DVI-D Adapter
Destination
DVI-D Input
Source HDMI
Output on KD-HDMI
DVI-D Displays
If your display does not support HDMI but has a DVI-D input, you will need an HDMI to DVI-D
Adapter at the output of the KD-HDMI.
The Key Digital
®
HDMI to DVI-D Adapter is the perfect choice.
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KD-HDMI2x1 & 4x1 Operating Instructions
Page 20
KD-HDMI2x1 & 4x1 Operating Instructions
Page 21
HOW TO CONTACT KEY DIGITAL®
Repairs and Warranty Service
Should your product require warranty service, please contact Key Digital
®
to obtain a Returned
Materials Authorization (RMA) number
Please contact us at either:
Phone: [phone] ext 215
E-mail: [e-mail]
Technical Support
For technical questions about using our products, please contact us at either:
Phone: [phone] ext 301
E-mail: [e-mail]
Customer Support
For customer support questions about using our products, please contact us at either:
Phone: [phone] ext 223
E-mail: [email protected]
Warranty
All Key Digital
®
products are built to high manufacturing standards and should provide years of
trouble-free operation. They are backed by a limited two-year parts and labor warranty.
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Connectors
Each input and the output is comprised of the following connectors:
HDMI: HDMI Type A 19-pin connector
Digital Coaxial PCM audio: 1 x RCA female, white = left jack
Optical audio: Toslink connector
Analog stereo left & right audio: RCA female (1 each color-coded left & right)
RS-232C: D-sub 9-pin
5-pin power connector for external AC-DC power supply input
3.5 mm mono jack for serial (wired) IR input
Status and Control
User-selectable input video and audio source for distribution to the display:
Pushbutton control, and corresponding LEDs for status
HDMI hot-plug detect LEDs provided on the input HDMI connectors
IR remote control:
Separate front- and rear-panel IR sensors provided
Supports up to 99 units on the same IR network
Wired IR serial connector provided
RS-232 port:
Compatible with all control systems: Crestron, AMX, Elan, Control4, etc.
Used for Firmware upgrades
Supports CEC (Consumer Electronics Control)
Mechanical
Operating Temperature Range 0° – 70° C (32° – 158° F)
Product Size: 17 x 11 x 1.5 inches (excluding mounting flanges)
Product Weight: 8 lbs. (excluding external power supply)
Enclosure type: Metal
Input power: External AC-DC power supply included (5 Volt DC @ 5 Amps, 110-240 VAC, 50-60 Hz)
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