PTN WUH4ARC-8K User manual

WUH4ARC-8K
8K UHD 4x1 HDMI Switcher
All Rights Reserved
Version: WUH4ARC-8K_2022V1.0
User Manual

8K UHD 4x1 HDMI Switcher
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 the local distributor for
maintenance assistance. The functions described in this version were updated till
December 19, 2022. 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.
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.

8K UHD 4x1 HDMI Switcher
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.

8K UHD 4x1 HDMI Switcher
Table of Contents
1. Product Introduction....................................................................................................1
1.1 Features ............................................................................................................1
1.2 Package List......................................................................................................2
2. Technical Specification................................................................................................3
3. Panel Description........................................................................................................4
3.1 Front Panel........................................................................................................4
3.2 Rear Panel.........................................................................................................5
4. System Connection.....................................................................................................6
4.1 Usage Precaution..............................................................................................6
4.2 System Diagram................................................................................................6
5. Source Button Control.................................................................................................7
5.1 Manual Switching...............................................................................................7
5.2 Automatic Switching...........................................................................................7
6. IR Remote Control......................................................................................................8
7. RS232 Control............................................................................................................9
7.1 RS232 Control Software....................................................................................9
7.2 RS232 Command............................................................................................11
7.2.1 Signal Switching....................................................................................11
7.2.2 Source Device Control...........................................................................11
7.2.3 Display Device Control ..........................................................................12
7.2.4 Audio Selection......................................................................................13
7.2.5 System Control......................................................................................14
8. EDID Management...................................................................................................15
8.1 Predefined EDID Setting..................................................................................15
8.2 User Defined EDID Setting..............................................................................16
9. Firmware Upgrade....................................................................................................17
10. Panel Drawing ........................................................................................................17
11. Troubleshooting & Maintenance .............................................................................18
12. Customer Service...................................................................................................19

8K UHD 4x1 HDMI Switcher
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1. Product Introduction
The WUH4ARC-8K is an auto switcher with four HDMI video inputs and one HDMI
output. This switcher supports HDMI video resolution up to 8K@60Hz 4:2:4 HDR+ and
High Definition 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 enhanced audio return channel (eARC) for transmitting
audio back to HDMI input port 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.
1.1 Features
⚫Switches any one of four HDMI inputs to one HDMI output.
⚫Supports video resolution up to 8K@60Hz 4:2:0, Dolby Vision, HDR.
⚫40Gbps high bandwidth.
⚫Fully compliant with the HDMI 2.1 and HDCP2.3 specifications.
⚫Supports enhanced audio return channel (eARC).
⚫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.

8K UHD 4x1 HDMI Switcher
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1.2 Package List
⚫1x 8K UHD 4x1 HDMI Switcher
⚫2x Mounting Ears
⚫2x Mounting Screws
⚫4x Plastic Cushions
⚫1x RS232 Cable (3.5mm to DB9)
⚫1x IR Remote
⚫1x IR Receiver
⚫1x Power Adapter (24V DC 1.25A)
⚫1x User Manual
Note: Please contact your distributor immediately if any damage or defect in the
components is found.

8K UHD 4x1 HDMI Switcher
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2. Technical Specification
Video Input
Input
(4) HDMI
Input Connector
(4) Female type-A HDMI
HDMI Input Resolution
Up to 8K@60Hz 4:2:0, Dolby Vision, HDR+
HDMI Standard
2.1
HDCP Version
2.3
Video Output
Output
(1) HDMI
Output Connector
(1) Female type-A HDMI
HDMI Output Resolution
Up to 8K@60Hz 4:2:0, Dolby Vision, HDR+
HDMI Standard
2.1
HDCP Version
2.3
Audio
Output
(1) AUDIO
Output Connector
(1) 3.5mm mini stereo audio jack
Audio Format
PCM
Audio Output Impedance
70 Ohms
Frequency Response
20Hz to 20kHz, ±3dB
Control
Control
(1) IR IN; (1) RS232
Control Connector
(2) 3.5mm mini jack
General
Bandwidth
40Gbps
Operation Temperature
-5 to +55℃(+23°to +131°F)
Storage Temperature
-25 to +70℃(-13°to +158°F)
Relative Humility
10% to 90%, Non-condensing
Power Supply
24V DC 1.25A
Power Consumption
(Max)
Dimension (W*H*D)
188mm x 21mm x 105mm
Net Weight
g
Note: Please adopt high-qualified HDMI cable fully compliant with HDMI 2.1 for reliable transmission
and connection.

8K UHD 4x1 HDMI Switcher
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3. Panel Description
3.1 Front Panel
①Power LED: The LED illuminates green when power is applied.
②Audio LED: Illuminates blue when de-embedding audio.
③Input 1~4 LED: The LED illuminates green when there is HDMI input on the
corresponding channel.
④AUTO LED: Illuminates blue when auto switching mode.
⑤Switch AUTO/3s Button:
⚫Press to switch to next input source.
⚫Press and hold at least three seconds to switch between manual mode and auto
mode.
⑥EDID: 4-pin DIP switch for EDID setting.
⑦FIRMWARE: Micro-USB port for firmware upgrade.

8K UHD 4x1 HDMI Switcher
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3.2 Rear Panel
①IN 1~4: Four type-A female HDMI input ports to connect HDMI sources. The input
4 port supports eARC.
②OUT: Type-A female HDMI output port to connect HDMI display.
③AUDIO: 3.5mm mini jack for analog audio output.
④IR IN: 3.5mm mini jack to connect the included IR receiver for remote control.
⑤RS232: 3.5mm mini jack to connect control device (e.g. PC).
⑥DC 24V: DC port to connect a 24V1.25A power adapter.
Note: Output HDCP compliant status depends on input signal. When the input signal
is with HDCP, then output signal is with HDCP and vice versa.

8K UHD 4x1 HDMI Switcher
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4. System Connection
4.1 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.
4.2 System Diagram
The following diagram illustrates typical input and output connections that can be
utilized with this switcher: