7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not install or place this product near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including ampliers) that produce heat.
9. 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 t into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specied by the manufacturer.
12. To reduce the risk of electric shock and/or damage to this product, never handle or
touch this unit or power cord if your hands are wet or damp. Do not expose this
product to rain or moisture.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualied 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.
15. Batteries that may be included with this product and/or accessories should never be
exposed to open ame or excessive heat. Always dispose of used batteries
according to the instructions.
ii
4K Ultra HD 4x2 Matrix for HDMI
Warranty Information
Gefen warrants the equipment it manufactures to be free from defects in material and
workmanship.
If equipment fails because of such defects and Gefen is notied within two (2) years from
the date of shipment, Gefen will, at its option, repair or replace the equipment, provided
that the equipment has not been subjected to mechanical, electrical, or other abuse or
modications. Equipment that fails under conditions other than those covered will be
repaired at the current price of parts and labor in effect at the time of repair. Such repairs
are warranted for ninety (90) days from the day of reshipment to the Buyer.
This warranty is in lieu of all other warranties expressed or implied, including without
limitation, any implied warranty or merchantability or tness for any particular purpose, all of
which are expressly disclaimed.
1. Proof of sale may be required in order to claim warranty.
2. Customers outside the US are responsible for shipping charges to and from Gefen.
3. Copper cables are limited to a 30 day warranty and cables must be in their original
condition.
The information in this manual has been carefully checked and is believed to be accurate.
However, Gefen assumes no responsibility for any inaccuracies that may be contained
in this manual. In no event will Gefen be liable for direct, indirect, special, incidental, or
consequential damages resulting from any defect or omission in this manual, even if
advised of the possibility of such damages. The technical information contained herein
regarding the features and specications is subject to change without notice.
For the latest warranty coverage information, refer to the Warranty and Return Policy under
the Support section of the Gefen Web site at www.gefen.com.
PRODUCT REGISTRATION
Please register your product online by visiting the Register Product page under the
Support section of the Gefen Web site.
iii
4K Ultra HD 4x2 Matrix for HDMI
Contacting Gefen Technical Support
Gefen, LLC
c/o Customer Service
20600 Nordhoff St.
Chatsworth, CA 91311
Telephone: (818) 772-9100
(800) 545-6900
Fax: (818) 772-9120
Email: support@gefentoolbox.com
Visit us on the Web: www.gefentoolbox.com
Technical Support Hours: 8:00 AM to 5:00 PM Monday - Friday, Pacic Time
4K Ultra HD 4x2 Matrix for HDMI is a trademark of Gefen, LLC.
Gefen, LLC reserves the right to make changes in the hardware, packaging, and any
accompanying documentation without prior written notice.
HDMI, the HDMI logo, and High-Denition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing in the United States and other countries.
All trademarks are the property of their respective owners.
Important Notice
iv
iv
3GSDI Audio Embedder
4K Ultra HD 4x2 Matrix for HDMI
Operating Notes
• EDID contains the A/V capabilities of a display device in regards to video resolutions
and audio formats supported. This information is used by the source device to
determine the format of the A/V signal on the outputs. The GefenToolBox 4K Ultra
HD 4x2 Matrix for HDMI incorporates advanced EDID management to ensure
compatibility with all sources and display devices.
• The GefenToolBox 4K Ultra HD 4x2 Matrix for HDMI can detect the presence of Deep
Color (12-bit signal) automatically and will disable Deep Color EDID features across
all other outputs if any connected device or display is not capable of processing Deep
Color. This automatic behavior ensures compatibility among all output devices in a
mixed-device environment. This feature cannot be disabled.
• When powering the GefenToolBox 4K Ultra HD 4x2 Matrix for HDMI or if the EDID
mode is changed, the matrix will undergo a momentary initialization sequence. This is
normal operation and may take a few seconds.
• The best way to operate and congure this unit is to use the built-in Web interface,
which can be accessed by entering the IP address of the matrix into the address bar of
any Web browser. See the section RS-232 and IP Conguration for more information
about this feature.
vv
4K Ultra HD 4x2 Matrix for HDMI
Licensing
This product uses software that is subject to open source licenses, including one or more
of the General Public License Version 2 and Version 2.1, Lesser General Public License
Version 2.1 and Version 3, BSD, and BSD-style licenses. Distribution and use of this
product is subject to the license terms and limitations of liability provided in those licenses.
Specic license terms and Copyright Notications are provided in the source code.
For three years from date of activation of this product, any party may request, and we
will supply, for software covered by an applicable license (e.g. GPL or LGPL), a complete
machine-readable copy of the corresponding open source code on a medium customarily
used for software interchange. The following software and libraries are included with this
product and subject to their respective open source licenses:
• lwIP
• jQuery
lwIP is licenced under the BSD licence:
Copyright (c) 2001-2004 Swedish Institute of Computer Science.
All rights reserved.
Redistribution and use in source and binary forms, with or without modication,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.
3. The name of the author may not be used to endorse or promote products derived from
this software without specic prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS’’ AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
vi
4K Ultra HD 4x2 Matrix for HDMI
1080P
60Hz, 4:2:0
FAST SWITCHING TECHNOLOGY
HDCP
4K
Features and Packing List
Features
• Routes four Ultra Hi-Def sources to two Ultra HD displays
• Supports resolutions up to Ultra HD 4K x 2K (3840 x 2160 @ 30Hz) and
1080p Full HD
• Supports 12-bit Deep Color
• 3DTV pass-through
• Lip Sync pass-through
• Push button controls for Routing, FST Modes, Audio, and EDID management
• FST Technology speeds up HDCP authentication process
• Advanced EDID Management for rapid integration of sources and displays
• Supports LPCM 7.1, Dolby® TrueHD, and DTS-HD Master Audio™
• Supports the use of DVI sources and DVI displays with HDMI-to-DVI adapters (not
included)
• RS-232 Serial interface for remote control using a computer or automation control
system
• IP control via Telnet, UDP, and the built-in web server interface
• IR remote control
• Field-upgradeable rmware via Mini-USB and IP ports
• Locking Power Supply
• Surface-mountable
The 4K Ultra HD 4x2 Matrix for HDMI ships with the items listed below. If any of these
items are not present in your box when you rst open it, immediately contact your dealer or
Gefen.
• 1 x 4K Ultra HD 4x2 Matrix for HDMI
• 1 x IR Remote
• 1 x 5V DC Power Supply
• 1 x Quick-Start Guide
CINEMA
DCI, 4096 x 2160
Packing List
vii
3GSDI Audio Embedder4K Ultra HD 4x2 Matrix for HDMI
1FST (Fast / Slow)Use this recessed button to switch between
Fast and Slow FST (Fast Switching
Technology) modes. See Fast Mode vs
Slow Mode for more information on using
FST mode. The LED indicators will display
the current mode.
2Audio (2ch / Multi-ch)Use this recessed button to switch between
3EDID (Int / Ext)Use this recessed button to switch between
4Out 1 / Out 2 (selection)Consecutively press the Out 1 button
5In (1 - 4)Connect an HDMI cable from an Ultra
6Out 1 / Out 2 (outputs)Connect an Ultra HD display to each of
7PowerThis LED indicator will glow bright blue
2CH and Multichannel audio on the output.
The LED indicators will display the current
mode. See Selecting the Audio Mode for
more information on using this feature.
internal (Int) and external (Ext) EDID
modes. The LED indicators will display
the current mode. See Selecting the EDID
Mode for more information.
to route the desired input to Out 1.
Consecutively press the Out 2 button to
select the desired input for Out 2.
See Routing Inputs to Outputs for more
information. The LED indicators will
display the current routing state.
Hi-Def source to any of these HDMI ports.
these ports using an HDMI cables.
when the included 5V DC power supply
is connected between the matrix and an
available electrical outlet.
8RS-232Connect an RS-232 cable from this port to
9IR ExtConnect an IR Extender (Gefen part no.
an RS-232 device. See RS-232 and IP
Conguration for more information.
EXT-RMT-EXTIRN) to this port.
(continued on next page)
page | 3
Getting Started
IDNameDescription
10USBUsed for upgrading the rmware.
See Firmware Upgrade Procedure for more
information.
Panel Layout
11IRThis IR sensor receives signals from the
12IP ControlConnect an Ethernet cable between
135V DCConnect the included 5V DC power supply to
included IR remote control unit.
this jack and a LAN to use IP control.
See RS-232 and IP Conguration for more
information.
this locking power receptacle.
page | 4
Getting Started
IR Remote Control Unit
1
2
Front
IDNameDescription
1Activity indicatorThis LED ashes bright orange when a key
2Input Selection (1 - 8)Press these button to switch to the desired
NOTE: An Activity indicator that ashes quickly while holding down
any one of the buttons indicates a low battery. Replace the battery
as soon as possible. See Installing the Battery.
is pressed on the remote.
input (source). Buttons 1 - 4 are used to
select the input for Out 1. Buttons 5 - 8 are
used to select the input for Out 2.
page | 5
Getting Started
IR Remote Control Unit
(shown with cover removed)
Back
1
2
3
IDNameDescription
1DIP switch bankUse these DIP switches to set the IR
2Primary battery slot
(shown without battery)
3Alternate battery slotAllows for the installation of secondary
channel of the remote. See Setting the IR
Channel for more information.
Holds the battery for operating the remote.
Use only 3V CR2032-type batteries. Make
sure that the positive (+) side of the battery
is facing up.
(backup) battery.
page | 6
Getting Started
IR Remote Control Unit
Installing the Battery
The IR remote control unit ships with two batteries. Only one battery is required for
operation. The second battery is a spare.
1. Remove the back cover the IR Remote Control unit.
2. Insert the included battery into the primary battery slot. The positive (+) side of the
battery should be facing up.
3. Replace the back cover.
WARNING: Use only 3V CR2032-type batteries. Risk of explosion
if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.
Setting the IR Channel
In order for the included IR remote control to communicate with the 4K Ultra HD 4x2 Matrix
for HDMI, the IR remote control must be set to the same channel as the matrix. Use the
#set_ir command to set the IR channel of the matrix.
DIP switches
page | 7
IR ChannelDIP settings
0
(default)
1
2
3
ON
1 2
1 2ON1 2
ON
1 2
ON
1 2
Getting Started
Installation
Page Title
Connecting the 4K Ultra HD 4x2 Matrix for HDMI
1. Connect up to four Ultra Hi-Def sources to the In (1 - 4) ports on the matrix.
2. Connect up to two Ultra HD displays using the output ports (Out 1 and Out 2) on the
matrix.
3. OPTIONAL: Connect an RS-232 cable from the RS-232 port on the matrix to the RS-
232 connector on the serial controller (e.g. Gefen PACS, etc).
4. OPTIONAL: Connect an Ethernet cable from the IP Control port on the matrix to
a Local Area Network (LAN).
5. OPTIONAL: Connect an IR extender to the IR Ext port on the matrix.
6. Connect the included 5V DC locking power supply to the 5V DC power receptacle
on the matrix. Do not overtighten the locking power connector.
7. Connect the power supply to an available electrical outlet.
Available Modes .......................................................................................... 17
Selecting the EDID Mode ............................................................................ 17
Operating the 4K Ultra HD 4x2 Matrix for HDMI
Routing Basics
Determining the Current Routing State
On the bottom-left portion of the matrix, there are two rows of four LED indicators.
The top row of LED indicators displays the routing state of Out 1. The bottom row displays
the routing state of Out 2. A row of numbers (1 - 4) is printed above the two rows of LED
indicators. Each LED indicator represents an input (In 1 - In 4) on the matrix. The LED
indicator for the currently selected input will glow bright green.
LED indicates that In 1
is routed to Out 1
LED indicates that In 3
is routed to Out 2
page | 12
Operating the 4K Ultra HD 4x2 Matrix for HDMI
Routing Basics
Routing Inputs to Outputs
To the left of each row of LED indicators, there are two push-buttons labeled Out 1
and Out 2. To change the routing state of an output, press and release the button of the
desired output to advance to the next input.
In the example below, the source connected to In 3 is currently routed to Out 2.
To route In 4 to Out 2, press and release the Out 2 button.
In 3 is routed to Out 2
Out 2 is now set to In 4Button for Out 2
To route the source connected to Out 1 to another input, consecutively press and release
the Out 1 button until the desired input is selected.
When an output is routed to input 4, pressing and releasing the button will return the output
to input 1.
page | 13
Operating the 4K Ultra HD 4x2 Matrix for HDMI
Routing Basics
Using the IR Remote Control
The included IR remote control unit can also be used to switch between each input.
There are two columns of four buttons each on the IR remote.
1. Point the included IR remote control unit at the IR sensor on the top panel. If an IR
extender is being used, then both IR sensors will be used to receive IR signals.
Buttons 1 - 4 control the routing for Out 1 (In 1 - In 4) and buttons 5 - 8 control
the routing for Out 2 (In 1 - In 4).
2. Press the desired button on the IR remote control to select the output and input
to be routed.
IR sensor
IR extender
LED indicates a
button was pressed
page | 14
Operating the 4K Ultra HD 4x2 Matrix for HDMI
Switching Modes
FAST SWITCHING TECHNOLOGY
What is Fast Switching Technology?
Fast Switching Technology (FST) is a Gefen software implementation for HDMI products.
FST was created to improve the lengthy HDMI authentication process, based on the HDMI
and HDCP specications.
FST provides quicker audio/video source switching and greatly improves the overall audio/
video system behavior and performance when more than one HDTV display is used in the
system setup.
FST allows connecting / disconnecting or turning ON / OFF of HDTV displays without
having these activities affect other Hi-Def sources routed to any other HDTV display in the
same system.
Fast Mode vs Slow Mode
Use fast switching mode to improve performance when connecting / disconnecting Hi-Def
sources, and powering ON / OFF HDTV displays.
Use slow mode when the source does not support multiple devices. When set to slow
switching mode, the 4K Ultra HD 4x2 Matrix for HDMI will follow the standard authentication
process, based on the HDMI and HDCP specications.
Selecting the FST Mode
1. Press and release the FST button, using a paper clip or other pointed object,
to toggle between Fast and Slow modes.
2. The LED indicator will display the current FST mode.
Press the FST button to
switch the FST mode
page | 15
Operating the 4K Ultra HD 4x2 Matrix for HDMI
Audio Modes
The 4K Ultra HD 4x2 Matrix for HDMI provides the capability to switch between 2-channel
and multichannel audio output.
Use this audio mode when all displays (and/or other sink devices) support only 2-channel
LPCM audio.
1. Press and release the Audio button, using a paper clip or other pointed object,
to toggle between 2-channel and multichannel audio modes.
2. The LED indicator will display the current audio mode.
Supported audio formats
NOTE: In order for the audio channel mode to be selected, the
EDID switch must be set to the Int position. If the EDID switch is set to the Ext position, then the Audio switch will have no effect
on the audio output signal. See Setting the EDID Mode for more
information on using the EDID.
Selecting the Audio Mode
Press the Audio button to
switch the audio mode
Audio FormatAudio Format
LPCM 2CHLPCM 8-channel
Dolby® DigitalDolby® Digital Plus
Dolby® TrueHDDTS®
DTS-HD Master Audio™MLP (PPCM)
NOTE: When the Audio Mode is set the 2CH, the internal EDID will
restrict the audio output to 2-channel LPCM, regardless of the audio
input format.
page | 16
Operating the 1:8 Splitter for HDMI 4K x 2K
EDID Modes
The 4K Ultra HD 4x2 Matrix for HDMI features EDID Management. Before the source can
send video and/or audio to the display (sink), the source reads the EDID (Extended Display
Identication Data) from the display (sink) devices connected to the splitter. The EDID
contains information about what type of audio/video data that the source can send to each
output device. The splitter can use either the downstream EDID (from the display/sink) or
the built-in internal EDID.
Available Modes
• Internal EDID
Use this EDID mode if problems are encountered when using the external EDID.
The built-in internal EDID provides the source device with a “generic” EDID which
can be used by all display (sink) devices. The use of the internal EDID also provides
control of the audio output format.
• External EDID
When set to Ext mode, EDID data will be fetched from each display (or other sink
device) that is connected to the outputs of the matrix. Once this information is
gathered, the matrix “builds” an EDID based on the highest video and audio formats
that are supported by both sink devices. This EDID is then transmitted to each source
device.
• Custom EDID
When set to Custom mode, the matrix will use a customized EDID conguration
selected by the user. For example, each input can be individually set to different
EDID modes to suit the needs of each input.
Selecting the EDID Mode
1. Press and release the EDID button, using a paper clip or other pointed object,
to toggle between internal, external, and custom EDID modes.
2. The LED indicator will display the current EDID mode.
See Table 2.1, on the next page, for specications on the internal EDID.
page | 17
Operating the 1:8 Splitter for HDMI 4K x 2K
EDID Modes
Table 2.1 - Internal EDID Specication
Video Data BlockAudio Data BlockColor Prole
640 x 480p 59/60 4:3
720 x 480p 59/60 4:3
720 x 480p 59/60 16:9
1280 x 720p 59/60 16:9
1920 x 1080i 59/60 16:9
1440 x 480i 59/60 4:3
1920 x 1080p 59/60 16:9
720 x 576p 50 4:3
720 x 576p 50 16:9
1280 x 720p 50 16:9
1920 x 1080i 50 16:9
1440 x 576i 50 4:3
1920 x 1080p 50 16:9
1920 x 1080p 23/24 16:9
LPCM 2-channel
LPCM 8-channel
Dolby® Digital
DTS®
Dolby® Digital Plus
Dolby® TrueHD
DTS-HD Master Audio™
MLP (PPCM)
YCbCr 4:4:4
YCbCr 4:2:2
page | 18
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