UTE UH-4U User manual

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UH-4U
4K HDMI2.0 Switcher 4x1
All Rights Reserved
Version: UH-4U(Build2.0)_2018V1.1
User Manual

UH-4U: 4K HDMI2.0 4x1 Switcher
U.T.E. electronic GmbH & Co. KG www.ute.de
Preface
Read this user manual carefully before using the product. Pictures are shown in this
manual for reference only. Different models and specifications are subject to real
product.
This manual is only for operation instruction, please contact your local dealer or
distributor for maintenance assistance. The functions described in this version were
updated till June, 2018. In the constant effort to improve the product, we reserve the
right to make functions or parameters changes without notice or obligation. Please
refer to the dealers for the latest details.
All product function is valid till 2018-06-04.
Trademarks
Product model and logo are trademarks of U.T.E. electronic GmbH & Co. KG.
Any other trademarks mentioned in this manual are acknowledged as the properties of
the trademark owner. No part of this publication may be copied or reproduced without
the prior written consent.
FCC Statement
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. It has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a commercial
installation.
Operation of this equipment in a residential area is likely to cause interference, in
which case the user at their own expense will be required to take whatever measures
may be necessary to correct the interference.
Any changes or modifications not expressly approved by the manufacture would void
the user’s authority to operate the equipment.

UH-4U: 4K HDMI2.0 4x1 Switcher
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SAFETY PRECAUTIONS
To ensure the best performance from the product, please read all instructions carefully
before using the device. Save this manual for further reference.
⚫Unpack the equipment carefully and save the original box and packing material for
possible future shipment.
⚫Follow basic safety precautions to reduce the risk of fire, electrical shock and injury
to persons.
⚫Do not dismantle the housing or modify the module. It may result in electrical shock
or burn.
⚫Using supplies or parts not meeting the products’ specifications may cause damage,
deterioration or malfunction.
⚫Refer all servicing to qualified service personnel.
⚫To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this
product near water.
⚫Do not put any heavy items on the extension cable in case of extrusion.
⚫Do not remove the housing of the device as opening or removing housing may
expose you to dangerous voltage or other hazards.
⚫Install the device in a place with fine ventilation to avoid damage caused by
overheat.
⚫Keep the module away from liquids.
⚫Spillage into the housing may result in fire, electrical shock, or equipment damage. If
an object or liquid falls or spills on to the housing, unplug the module immediately.
⚫Do not twist or pull by force ends of the optical cable. It can cause malfunction.
⚫Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to
the device before cleaning.
⚫Unplug the power cord when left unused for a long period of time.
⚫Information on disposal for scrapped devices: do not burn or mix with general
household waste, please treat them as normal electrical wastes.

UH-4U: 4K HDMI2.0 4x1 Switcher
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Contents
1. Product Introduction to UH-4U....................................................................................1
1.1 Features ............................................................................................................1
1.2 Package List......................................................................................................2
2. Panel Description of UH-4U........................................................................................3
2.1 Front Panel........................................................................................................3
2.2 Rear Panel.........................................................................................................4
3. System Connection.....................................................................................................5
3.1 Usage Precaution..............................................................................................5
3.2 System Diagram of UH-4U................................................................................5
3.3 Connection Procedures.....................................................................................6
3.4 Application.........................................................................................................6
4. Source Button Control.................................................................................................7
4.1 Manual Switching...............................................................................................7
4.2 Automatic Switching...........................................................................................7
5. IR Remote Control......................................................................................................8
6. RS232 Control............................................................................................................9
6.1 RS232 Control Software....................................................................................9
6.1.1 Installation/uninstallation of RS232 Control Software..............................9
6.1.2 Basic Settings..........................................................................................9
6.2 RS232 Commands ..........................................................................................11
6.2.1 Signal Switching....................................................................................11
6.2.2 Source Device Control...........................................................................12
6.2.3 Display Device Control ..........................................................................13
6.2.4 Audio Selection......................................................................................13
6.2.5 System Control......................................................................................13
7. EDID Management...................................................................................................14
7.1 Predefined EDID Setting..................................................................................14
7.2 User Defined EDID Setting..............................................................................15
8. ARC Mode ................................................................................................................16
9. Firmware Upgrade....................................................................................................17

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10. Technical Specification............................................................................................18
11. Panel Drawing.........................................................................................................19
12. Troubleshooting & Maintenance .............................................................................20
13. Customer/ After-sales Service ................................................................................21

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1. Product Introduction to UH-4U
The UH-4U is an ultrathin auto switcher with four HDMI video inputs and one HDMI
output. This switcher supports HDMI video resolution up to 4Kx2K@60Hz 4:4:4 HDR
and multichannel audio. Except passing EDID information from the display, there are
multiple built-in EDID settings to simplify an installation. The switcher will de-embed
digital stereo audio to provide an analog audio source for an existing audio system.
The switcher also supports audio return channel (ARC) for transmitting audio back to
HDMI input and audio output ports from the connected display.
In auto-switch mode, it switches to an HDMI input as soon as a new source is
connected. When the active input is removed, the switcher will select the first source
on the lowest numbered input. The switcher may also be controlled via RS232, IR with
the included remote, or from the source button on the front of the switcher. If select any
of the inputs by “SOURCE” button on the front panel, IR Remote, or sending RS232
command, the corresponding indicator will illuminate to show real-time switching
status.
1.1 Features
⚫Switches any one of four HDMI inputs to one HDMI output.
⚫Supports video resolution up to 4Kx2K@60Hz 4:4:4 HDR.
⚫18Gbps high bandwidth.
⚫Fully compliant with the HDMI 2.0 and HDCP2.2 specifications.
⚫Supports audio return channel (ARC).
⚫Advanced EDID management: multiple preset and user defined allowed.
⚫Controllable via RS232 and IR.
⚫Supports CEC.
⚫Provides seven LEDs to indicate the current operating status and to assist
troubleshooting an installation.
⚫Firmware upgrade by Micro-USB port.

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1.2 Package List
⚫1x UH-4U: 4K HDMI2.0 4x1 Switcher with HDR Support
⚫2x Mounting Ears
⚫4x Mounting Screws
⚫4x Plastic Cushions
⚫1x RS232 Cable (3.5mm to DB9)
⚫1x IR Remote
⚫1x IR Receiver
⚫1x Power Adapter (5V DC 1A)
⚫1x User Manual
Note: Please confirm if the product and the accessories are all included, if not,
please contact with your dealer. Please contact your dealer immediately if any
damage or defect in the components is found.

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2. Panel Description of UH-4U
2.1 Front Panel
Figure 2-1 Front Panel UH-4U(Build2.0)
①Auto/Source Button:
⚫Press to switch to next input source.
⚫Press and hold at least three seconds to switch between manual mode and auto
mode.
②Power LED: The LED illuminates red when power is applied.
③Audio Mode LED:
⚫Illuminates green when de-embedding audio.
⚫Illuminates yellow when in ARC mode.
④Switching Mode LED:
⚫Illuminates green in manual switch mode.
⚫Illuminates yellow in auto-switch mode.
⑤Input 1~4 LED: The LED illuminates green when there is HDMI input on the
corresponding channel.
Note: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
FIRMWARE
AUTO
SOURCE AUDIO MODE 1 2 3 4
12345

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2.2 Rear Panel
Figure 2-2 Rear Panel UH-4U(Build2.0)
①IN1~IN4: Four type-Afemale HDMI input ports to connect HDMI sources.
The input 4 port supports ARC.
②OUT: Type-A female HDMI output port to connect HDMI display.
③AUDIO: 3.5mm mini jack for analog audio output.
④RS232: 3.5mm mini jack to connect control device (e.g. PC).
⑤IR IN: 3.5mm mini jack to connect the included IR remote.
⑥EDID: 4-pin DIP switch for EDID setting.
⑦DC 5V: DC barrel port to connect a 5V DC AC power adapter.
Notes:
Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
Output HDCP compliant status depends on input signal. When the input signal is
with HDCP, then output signal is with HDCP and vice versa.
DC 5VEDIDIR INRS232AUDIOOUT
IN 1 IN 2 IN 3
1234567

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3. System Connection
3.1 Usage Precaution
⚫Make sure all components and accessories included before installation.
⚫System should be installed in a clean environment with proper temperature and
humidity.
⚫All of the power switches, plugs, sockets, and power cords should be insulated and
safe.
⚫All devices should be connected before power on.
3.2 System Diagram of UH-4U
The following diagram illustrates typical input and output connections that can be
utilized with this switcher:
Figure 3-1 System Diagram UH-4U(Build2.0)
Note: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.

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3.3 Connection Procedures
Step1.Connect HDMI source device(s) (e.g. Blue-ray DVD) to the “IN1”~“IN4”ports of
this switcher with HDMI cable.
Step2.Connect HDMI display (e.g. HDTV) to “OUT” port of this switcher with HDMI
cable.
Step3.Connect an amplifier to the “AUDIO”output.
Step4.Connect an IR Receiver to the “IR IN” to control the switcher via IR Remote.
Step5.Connect the control device (e.g. PC) to the “RS232” port to control the switcher
via RS232 commands.
Step6.Plug a DC 5V power adapter to the “DC 5V” port.
Notes:
•All the ports support hot-plug.
•Please adopt qualified HDMI cables compliant with HDMI2.0 for reliable
transmission when connecting.
3.4 Application
The HDMI2.0 switcher UH-4U has a good application in various occasions, such as
computer realm, monitoring, conference room, big screen displaying, television
education, command & control center and smart house etc.

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4. Source Button Control
The button “AUTO/SOURCE” on the front panel can be used to select input source
and switch mode.
Press and hold the button “AUTO/SOURCE”for 3 seconds or more to switch
between the manual and auto modes. (Default: Manual switching.).
4.1 Manual Switching
When the switcher is in manual switching mode, the Switching Mode LED will be
green, and please press Auto/Source button to switch to the next input.
4.2 Automatic Switching
When the switcher is in manual switching mode, the Switching Mode LED will be
yellow.
When in auto-switch mode, the switcher follows the rules in the certain circumstances:
⚫New Input
Upon detecting a new input, the switcher will automatically select the new source.
⚫Reboot
Once power is restored to the switcher, if the last selected source is still available,
the switcher will still output this signal, otherwise, the switcher will switch to the first
available active input starting at HDMI Input 1.
⚫Source Removed
When an active source is removed, the switcher will switch to the first available
active input starting at HDMI Input 1.

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5. IR Remote Control
Please connect an IR receiver to the IR input port; the IR remote is used for signal
switching and it can also be used to control source and display devices based on CEC
function. Here is a brief introduction about the IR Remote:
Notes:
⚫Pictures shown in this manual are for reference only, different model and
specifications are subject to real product
⚫Due to the HDMI input 4 port does not support CEC, the source device connected to
this port can not be controlled by IR remote.
⚫The source and display devices are required to support CEC when the IR remote is
used to control them.
INPUTS:
1~4: Select the corresponding input source.
MANUAL/AUTO: Switch Auto or manual mode.
SOURCE:
Control the input source (e.g. DVD).
DISPLAY:
Control the display (e.g. HDTV).

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6. RS232 Control
Connect the switcher to the control device (e.g. PC) with RS232 cable and set the
parameters in the right manner, the control device is capable to control this switcher by
RS232 commands.
6.1 RS232 Control Software
6.1.1 Installation/uninstallation of RS232 Control Software
Installation: Copy the control software file to the computer connected with
this switcher.
Uninstallation: Delete all the control software files in corresponding file path.
6.1.2 Basic Settings
First of all, please connect all needed input devices and output devices, then to
connect it with a computer which is installed with RS232 control software.
Here take the software CommWatch.exe as example.
Double-click the following icon:

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The interface of the control software is shown as below:
Please set the parameters of COM number, baud rate, data bit, stop bit and the parity
bit correctly, then the RS232 commands can be sent in Command SendingArea.
Baud rate: 9600; Data bit: 8; Stop bit: 1; Parity bit: none.
Parameter configuration area
Monitoring area, indicates if the
command sent works.
Command sending area

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6.2 RS232 Commands
Please set the parameters of COM number, bound rate, data bit, stop bit and the parity
bit correctly, then the RS232 commands can be sent in Command SendingArea.
Baud rate: 9600; Data bit: 8; Stop bit: 1; Parity bit: none.
6.2.1 Signal Switching
Function
Command
Feedback Example
Switch to HDMI input 1.
>>HDMI1
<<HDMI1
Switch to HDMI input 2.
>>HDMI2
<<HDMI2
Switch to HDMI input 3.
>>HDMI3
<<HDMI3
Switch to HDMI input 4.
>>HDMI4
<<HDMI4
Enable auto-switching mode.
>>AUTO
<<AUTO Switch
Enable manual switching mode.
>>MANUAL
<<MANUAL Switch

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6.2.2 Source Device Control
Notes:
⚫The input source device is required to support CEC.
⚫Due to the HDMI input 4 port does not support CEC, the source device connected to
this port can not be controlled by IR remote.
Function
Command
Feedback Example
Turn on the input source device,
e.g. Blue-ray DVD.
>>SRCOn
<<SRCOn
Turn off the input source device,
e.g. Blue-ray DVD.
>>SRCOff
<<SRCOff
Play
>>SRCPlay
<<SRCPlay
Pause
>>SRCPause
<<SRCPause
Stop
>>SRCStop
<<SRCStop
Fast Forward x1
>>SRCForward
>>SRCForward
Fast Rewind x1
>>SRCBackward
<<SRCBackward
Next Section
>>SRCSkipForward
>>SRCSkipForward
Previous Section
>>SRCSkipBackward
<<SRCSkipBackward
Open the menu setting
>>SRCMenu
>>SRCMenu
Go back
>>SRCBack
>>SRCBack
Confirm (OK)
>>SRCOk
>>SRCOk
Exit
>>SRCExit
>>SRCExit
Up direction
>>SRCUp
>>SRCUp
Down direction
>>SRCDown
>>SRCDown
Left direction
>>SRCLeft
>>SRCLeft
Right direction
>>SRCRight
<<SRCRight

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6.2.3 Display Device Control
Note: The display device is required to support CEC.
Function
Command
Feedback Example
Turn on the display device, e.g.
HDTV.
>>TVOn
>>TVOn
Turn off the display device, e.g.
HDTV.
>>TVOff
>>TVOff
Volume up.
>>TVVOL+
>>TVVOL+
Volume down.
>>TVVOL-
>>TVVOL-
Mute.
>>TVMUTE
>>TVMUTE
Unmute
<<TVUNMUTE
<<TVUNMUTE
6.2.4 Audio Selection
Function
Command
Feedback Example
Select ARC audio channel.
>>AUDExternal
<<AUDExternal
Select the HDMI audio input
channel.
>>AUDInternal
>>AUDInternal
6.2.5 System Control
Function
Command
Feedback Example
System reset.
>>RESET
>>RESET
Get system information.
>>SYSInfo
<<AUDExternal
<< WUH4ARC-H2
<< V1.0.0
<< --------
<<HDMI1
<<Auto Switch
<<AUDExternal
<<EDID0

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7. EDID Management
7.1 Predefined EDID Setting
The rear panel boasts a 4-pin DIP switch to set the predefined EDID. The ten types of
embedded EDID and their corresponding switch status are shown in the below list.
When in the lower
position, the switch
represents “ON”,
while putting the
switch in the up
position, it
represents “OFF”.
ID
Switch
Status
Video
Audio
0
0000
Pass though
Pass though
1
0001
1920x1080p@60Hz 4:4:4
RGB 8bit
Stereo
2
0010
1920x1080p@60Hz 4:4:4
RGB 8bit
High Definition
3
0011
1920x1080p@60Hz 4:4:4
RGB 12bit
Stereo
4
0100
1920x1080p@60Hz 4:4:4
RGB 12bit
High Definition
5
0101
3840x2160p@60Hz 4:2:0
RGB 8bit
Stereo
6
0110
3840x2160p@60Hz 4:2:0
RGB 8bit
High Definition
7
0111
3840x2160p@60Hz 4:4:4
RGB 10bit HDR
Stereo
8
1000
3840x2160p@60Hz 4:4:4
RGB 10bit HDR
High Definition
9
1001
1280x800@60Hz
Stereo
10
1010
1920x1200@60Hz
Stereo

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7.2 User Defined EDID Setting
Except directly invoking the embedded EDID, the specific EDID can be customized.
There are five EDID can be customized following the below operations.
1) Rename the user defined EDID according the following format.
EC_xx_xxxx_xxx.bin
⚫EC: Represents EDID.
⚫xx: Represents EDID ID. It is 11~15.
⚫xxxx: Represents the video parameter.
⚫xxx: Represents the audio format.
Example: EC_11_720P_LPCM.bin
2) Power on the switcher, and then connect the switcher to the PC with USB cable.
The PC will automatically detect a U-disk named of “BOOTDISK”.
3) Double-click the U-disk, a file named of “READY.TXT” would be showed.
4) Copy the user defined EDID (such as EC_11_720P_LPCM.bin) to the
“BOOTDISK” U-disk.
5) Reopen the U-disk to check the filename “READY.TXT” whether automatically
becomes “SUCCESS.TXT”, if yes, the user defined EDID was imported into the
switcher and saved as its corresponding EDID ID successfully.
6) Repeat the above third to fifth step to copy other user defined EDIDs to the
“BOOTDISK” U-disk.
7) Remove the USB cable, connect the adaptor to power on the switcher.
8) The new EDID also can be invoked via the 4-pin DIP switch directly. The EDID ID
and its corresponding switch status are shown in the below list.
ID
Switch Status
11
1011
12
1100
13
1101
14
1110
15
1111