PTN WUH4A User manual

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WUH4A
PTN 4K HDMI Switcher 4x1
All Rights Reserved
Version: WUH4A_2014V1.0
User Manual

4K HDMI Switcher 4x1
PTN Electronics Limited www.PTN-electronics.com
Preface
Read this user manual carefully before using this product. Pictures shown in this manual
is for reference only, different model and specifications are subject to real product.
This manual is only for operation instruction only, not for any maintenance usage. The
functions described in this version are updated till October 2014. Any changes of
functions and parameters since then will be informed separately. Please refer to the
dealers for the latest details.
All product function is valid till 2014-10-20.
Trademarks
Product model, PTN and its logo are trademarks of PTN Electronics Limited.
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 of PTN Electronics Limited.
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 A 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.

4K HDMI Switcher 4x1
PTN Electronics Limited www.PTN-electronics.com
SAFETY PRECAUTIONS
To insure the best 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.

4K HDMI Switcher 4x1
PTN Electronics Limited www.PTN-Electronics.com
Contents
1. Introduction.................................................................................................................1
1.1 Introduction to WUH4A......................................................................................1
1.2 Features ............................................................................................................1
1.3 Package List......................................................................................................1
2. Panel Description........................................................................................................2
2.1 Front Panel........................................................................................................2
2.2 Rear Panel.........................................................................................................3
3. System Connection.....................................................................................................3
3.1 Usage Precautions............................................................................................3
3.2 System Diagram................................................................................................3
3.3 Connection Procedures.....................................................................................4
3.4 ARC Solution.....................................................................................................4
3.5 Application.........................................................................................................5
4. System Control...........................................................................................................5
4.1 Front Panel Control ...........................................................................................5
4.2 IR Control ..........................................................................................................6
4.3 RS232 Control...................................................................................................6
4.3.1 Installation/uninstallation of RS232 Control Software..............................6
4.3.2 Basic Settings..........................................................................................7
4.3.3 RS232 Communication Commands ........................................................8
4.4 EDID Management............................................................................................9
5. Firmware Upgrade....................................................................................................10
6. Specification .............................................................................................................11
6.1 Supported Input Video Formats.......................................................................12
7. Panel Drawing ..........................................................................................................12
8. Troubleshooting & Maintenance ...............................................................................13
9. After-sales Service....................................................................................................14

4K HDMI Switcher 4x1
PTN Electronics Limited 1www.PTN-electronics.com
1. Introduction
1.1 Introduction to WUH4A
WUH4A is a HDMI switcher accommodates 4 HDMI inputs.
Select any of the inputs by front panel button or IR Remote, the corresponding indicator
on the front panel will illuminate to show real-time I/O connection status. Compliance
with HDMI 1.4& HDCP1.4, WUH4A can transmit non-depressed 4K (at max) signal.
WUH4A boasts comprehensive audio capacities including PCM, Dolby Digital, DTS, and
DTS-HD. Besides, it provides an ARC audio output socket to transferARC audio to ARC
speakers like Yamaha.
Moreover, WUH4A supports convenient online firmware update through USB port.
1.2 Features
4 HDMI inputs
Support Hot-plug
Compliant with HDMI 1.4, capable to transmit 4K signal
High bandwidth: 10.2Gbps
HDCP1.4 compliant, support auto-detecting for input HDCP compliant status
Support EDID management, including 5 embedded EDID data, 10 (max)
user-definable EDID data, and EDID data automatically captured and copied
Intuitive indicators for power, switch mode, I/O connection status and audio output
signal
Convenient online firmware update
1.3 Package List
1 x WUH4A
2 x Mounting ears (separate from WUH4A)
4 x Screws
4 x Plastic cushions
1 x IR Remote
1 x Power Adapter (DC 5V 1A)
1 x User Manual
Notes：Confirm all the accessories are included, if not, please contact with the dealers.

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2. Panel Description
2.1 Front Panel
No. Name Description
①Power Illuminate red once powered on
②AUDIO
Bi-colored LED indicator for audio source
illuminate green when the audio is de-embedded from
HDMI signal
illuminate yellow when the audio is ARC
③Mode
Bi-colored indicator for present switch mode
illuminate yellow when in auto-switch mode
illuminate green in manual switch mode.
④Input Indicate the present input source, 4 in total, the indicator of the
present input source illuminate green
⑤SOURCE/
AUTO
Used as video source selection button, press to switch
among the 4 inputs source circularly
Used as switch mode selection button, press and hold for 3
seconds or more to switch between auto-switch mode and
manual switch mode.
⑥FIRMWARE USB port, used for firmware update & powering
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.

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2.2 Rear Panel
No.
Name
Description
①IN
HDMI input ports. 4 in total, connect with HDMI or DVI
source device such as DVD/ Blue-ray, supports input
signals up to 4k& 1080p 3D
ARC audio output ports, connect with ARC speakers
②OUT HDMI output port, connect to HDMI display
③AUDIO Audio output port, connect with speaker to repeat HDMI audio
signal or output ARC audio
④RS232 Serial control port, connect with control device (e.g. a PC) to
control WUH4A
⑤IR IN Connect with IR receiver to collect infrade signal
⑥EDID 4-pin EDID DIP switchers to set EDID data, “1” stands for “On”,
“0” stands for “Off”. Dial the switchers to change EDID data
refering to the explainations in 4.4 EDID Management.
⑦DC 5V Power port, plug a DC 5V power adapter into this port
Note: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
3. System Connection
3.1 Usage Precautions
1) System should be installed in a clean environment and has a prop temperature and
humidity.
2) All of the power switches, plugs, sockets and power cords should be insulated and
safe.
3) All devices should be connected before power on.
3.2 System Diagram
The following diagram illustrates typical input and output connections that can be
utilized with WUH4A:

4K HDMI Switcher 4x1
PTN Electronics Limited 4www.PTN-electronics.com
Figure 3- 1 Connection Diagram
3.3 Connection Procedures
Step1.Connect HDMI/ DVI source device(s) (e.g. Blue-ray DVD) to the HDMI INPUT
ports of WUH4A with HDMI cable.
Step2.Connect HDMI displays to HDMI OUTPUT ports of WUH4A with HDMI cable.
Step3.Connect an amplifier to the audio output port.
Step4.Connect an IR Receiver to the IR IN to enable IR control.
Step5.Connect the control device (e.g. a PC) to the RS232 port to enable RS232
control.
Step6.Plug a DC 5V power adapter to the power port of WUH4A.
Note: All the ports support hot-plug.
3.4 ARC Solution
The ARC (Audio Return Channel) enables a display, via a single HDMI cable, to either
send or receive audio via HDMI, upstream or downstream, depending on system set-up
and user preferences, increasing user flexibility. Connect the devices abiding by the
following figure:
DVD HDTV
Speaker
PC
IR Remote
WUH4A
HDMI Signal ：
Audio Signal ：
IR Signal ：
Control Signal ：

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Note: All utilized devices including the HDMI cable should support Audio Return
Channel functionality when connected to Audio Return Channel-enabled devices.
3.5 Application
WUH4A 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.
4. System Control
4.1 Front Panel Control
SOURCE/AUTO button on the front panel can be used to change input source and
switch mode.
Switch input source: Press the button to switch circularly among input 1~4, the
corresponding indicator illuminate green synchronously for easy recognition.
Change switch mode: Input signal supports auto-switch and manual switch. Press
and hold SOURCE/AUTO button for 3 seconds or more to switch between the two
modes. (Default: Manual switch.)
In auto-switch mode, source selection abides by the following principles:
New input principle
Once detecting a new input signal, WUH4A switch to this new signal
automatically.
Power rebooting principle
Once rebooted, WUH4A will automatically select input 1 as input source even
though there is no connection in input 1.
Signal removing principle
Once removed the current display signal, WUH4A will detect all input signals with
HDTV
Speaker
Speaker
WUH4A
ARCAudio：

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priority from INPUT 1 to INPUT 4. It will transfer the first available source to the
output device.
In manual-switch mode, once rebooting, WUH4Awill output the source signal before
rebooting.
4.2 IR Control
Connect an IR receiver to the IR IN port, users can control the device via the included IR
remote. Here is a brief introduction to the IR remote:
4.3 RS232 Control
WUH4A provides with 1 3.5mm RS232 port for serial port control. Connect WUH4A to
the control device (e.g. a PC) with RS232 cable and set the parameters in the right
manner, the control device is capable to control WUH4Avia designed software.
4.3.1 Installation/uninstallation of RS232 Control Software
Installation: Copy the control software file to the computer connected with WUH4A.
Uninstallation: Delete all the control software files in corresponding file path.
MENU:
Mute: press to mute/ unmute output
Audio: switch between HDMI signal and ARC audio
Source/Auto: share the same function with
SOURCE/AUTO button on the front panel
INPUTS:
1~4: press to switch input source, correspond to
input 1~4 separately
Prev/ Next: switch to the previous/ next input source
abiding by the order 1~4