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.
Introduction to PT-SW-HD41UHD
This PT-SW-HD41UHD is an HDMI2.0 switcher accommodates 4 HDMI inputs. 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.
This switcher can transmit uncompressed 4Kx2K@60Hz 4:4:4 (at max) signal without any losing anything, and supports HDMI2.0, and compliance with HDCP2.2.
Moreover, it supports convenient online firmware update through USB port.
Feature
- 4 HDMI inputs & 1 HDMI output.
- Support HDMI2.0, and the max resolution supports 4Kx2K@60Hz 4:4:4.
- HDCP2.2 compliant, support auto-detecting for input HDCP compliant status.
- Support EDID management, including 6 embedded EDID data can be invoked.
- Support CEC to control source or display device via IR Remote and RS232 commands.
- LED indicators show the switching status.
- Support Hot-plug.
- High bandwidth: 18Gbps.
- Convenient online firmware update.
Package List
- 1 x PT-SW-HD41UHD 4K HDMI2.0 Switcher 4x1
- 2 x Mounting ears & 4 x Screws
- 4 x Plastic cushions
- 1 x IR Receiver (5V, with carrier)
- 1 x IR Remote
- 1 x Power Adapter (5VDC 2A)
- 1 x User Manual
Note: Confirm all the accessories are included, if not, please contact with the dealers.
Front Panel
| No. | Name | Description |
|---|---|---|
| ① | SOURCE/ MODE/3s | • Video source selection button, press to switch among the 4 inputs source circularly. • Switch mode selection button, press and hold for 3 seconds or more to switch between auto-switch mode and manual switch mode. |
| ② | Power indicator | Illuminate red once powered on. |
| ③ | AUTO | Bi-colored indicator for present switching mode. • Green when in auto-switching mode. • OFF when in manual mode. |
| ④ | 1~4 | Total 4 bi-colored LED indicators: • The indicator of the present input source illuminates green. • The indicator of the connected input source illuminates orange. |
| ⑤ | FW | Connect to PC with USB cable to update firmware. Please refer to 7 Firmware Upgrade for more details. |

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.
Rear Panel
Rear panel ports and connectors layout
| No. | Name | Description |
|---|---|---|
| ① | OUT | HDMI output port, connect to HDMI display |
| ② | IN1~IN4 | Total 4 HDMI input ports, connect with HDMI source devices. |
| ③ | RS232 | Serial control port, connect with control device (e.g. a PC) to control this switcher. |
| ④ | IR IN | Connect with IR receiver to collect IR signal from IR Remote. |
| ⑤ | EDID | 4-pin DIP switcher to invoke built-in EDID data. Please refer to 4.2 Embedded EDID invoking for more details. |
| ⑥ | DC 5V | Connect with power adaptor for powering the switcher, or used for updating firmware. |

Usage Precaution

- Verify all components and accessories included before installation.
- System should be installed in a clean environment with proper temperature and humidity (see page 16 for limits).
- All of the power switches, plugs, sockets and power cords should be insulated and safe.
- All devices should be connected before power on.
System Diagram
The following diagram illustrates typical input and output connections that can be utilized with this switcher:
Typical input and output connection diagram for the switcher. Labels: Ray-Blu DVD, Game Console, Camera, Laptop, HDTV, Central Control System, Receiver, Remote. HDMI: blue line, Control: pink line.
Connection Procedure
- Connect HDMI source device(s) (e.g. Blue-ray DVD) to the “IN1”~“IN4” ports of this switcher with HDMI cable.
- Connect HDMI display (e.g. HDTV) to “OUT” port of this switcher with HDMI cable.
- Connect an IR Receiver to the “IR IN” to control the switcher via IR Remote.
- Connect the control device (e.g. PC) to the “RS232” port to control the switcher via RS232 commands.
- Plug a DC 5V power adapter to the “DC 5V” port.
Note: All the ports support hot-plug.
Application
This switcher 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.
3.3 Connection Procedure
- Connect HDMI source device(s) (e.g. Blue-ray DVD) to the “IN1”~“IN4” ports of this switcher with HDMI cable.
- Connect HDMI display (e.g. HDTV) to “OUT” port of this switcher with HDMI cable.
- Connect an IR Receiver to the “IR IN” to control the switcher via IR Remote.
- Connect the control device (e.g. PC) to the “RS232” port to control the switcher via RS232 commands.
- Plug a DC 5V power adapter to the “DC 5V” port.
Note: All the ports support hot-plug.
3.4 Application
This switcher 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.
Input Source Switching
The button “SOURCE/MODE/3s” on the front panel can be used to select input source and switch mode.
Manual Switching Mode
Press “SOURCE/MODE/3s” button to switch circularly among input 1~4, the corresponding indicator illuminate green synchronously for easy recognition.
Auto Switching Mode
Press and hold the button “SOURCE/MODE/3s” for 3 seconds or more to switch between the manual and auto modes. (Default: Manual switch.). Once enter auto-switching mode, the “AUTO” LED will light up.
The auto-switching mode abides by the following principles:
- New Input Once detecting a new input signal, this switcher would switch to this new signal automatically.
- Power Rebooting This switcher support power off memory function. If the last selected signal is still available, the switcher will still output the signal. If not, the switcher will detect all the input signals with priority from “IN 1” to “IN 4” ports. When detected the first signal, it will transfer to output.
- Signal Removing Once removing the current input signal, this switcher will detect all input signals with priority from the next input port. It will transfer the first available source to the output device. For example, the selected input signal is “IN 2”, if you disconnect the current input source, PT-SW-HD41UHD will detect all input signals according to the following order: “IN 3”, “IN 4”, “IN 1”, and then the first available source will be switched as input.
Embedded EDID Invoking
The rear panel boasts a 4-pin DIP switcher to invoke embedded EDID. The embedded EDID data and their corresponding DIP switcher status are shown in the below list.
| ID | Status | EDID |
|---|---|---|
| 00 | 0000 | Pass through (default) |
| 01 | 0001 | 1080p 3D 2CH |
| 02 | 0010 | 1080p 3D Multichannel |
| 03 | 0011 | 1080P 2D 2CH |
| 04 | 0100 | 1080P 2D Multichannel |
| 05 | 0101 | 3840x2160 2D(30Hz) |
| 06 | 0110 | 3840x2160 2D(60Hz) |
IR Control
Connect an IR receiver to the IR IN port, this switcher can be controlled via the included IR Remote. As CEC function, it is able to use the IR Remote to control the source or display device. Here is a brief introduction about the IR Remote:
IR Remote for PT-SW-HD41UHD
- INPUTS: 1~4: Select video source via pressing corresponding button.
- MANUAL/AUTO: Select Manual switching mode or auto-switching mode.
- SOURCE: These buttons are designed to control input source device (e.g. DVD).
- DISPLAY: These buttons are designed to control output display device (e.g. HDTV).

Note: The source and display devices should support CEC when the IR Remote is used for controlling them.
RS232 Control
This switcher provides with RS232 port for serial port control. Connect this 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 via designed software.
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.
Basic Settings
Firstly, connect this switcher with an input device and an output device. Then, connect it with a computer which is installed with RS232 control software. Double-click the software icon to run this software.
Here we take the software CommWatch.exe as example. The icon is showed as below:
The interface of the control software is showed as below:
Please set the parameters of COM number, bound rate, data bit, stop bit and the parity bit correctly, only then will you be able to send command in Command Sending Area.
Baud rate: 9600; Data bit: 8; Stop bit: 1; Parity bit: none.

| Parameter Configuration area | Monitoring area, indicates whether the command sent works. | Command Sending area |
|---|
RS232 Command
Switching Command
| Function | Command | Feedback Example |
|---|---|---|
| Switch to HDMI input 1. | HDMI1% | [CMD]: switch to HDMI1. |
| Switch to HDMI input 2. | HDMI2% | [CMD]: switch to HDMI2. |
| Switch to HDMI input 3. | HDMI3% | [CMD]: switch to HDMI3. |
| Switch to HDMI input 4. | HDMI4% | [CMD]: switch to HDMI4. |
| Enable auto-switching mode. | AUTO% | [CMD]: switch to AUTO Mode. |
| Enable manual switching mode. | MANUAL% | [CMD]: switch to MANUAL Mode. |
Note: The source and display devices should support CEC.
EDID Customizing
| Function | Command |
|---|---|
| Query the current EDID | EDIDInfo% |
| Customize EDID. | EDIDSxx% |
| Remove all customized EDID. | EDIDR% |
Besides the 6 embedded EDID, there are 9 EDID can be customized as needed.
Firstly, send the command EDIDSxx% (XX=ID=07~15), and then click “Load File” on the RS232 control software to load the customized EDID file (.bin).
After customizing EDID data, you can invoke the new EDID via DIP switcher, and the EDID ID and their corresponding DIP switcher status are shown in the below list.
| ID | Switcher Status | ID | Switcher Status | ID | Switcher Status |
|---|---|---|---|---|---|
| 07 | 0111 | 08 | 1000 | 09 | 1001 |
| 10 | 1010 | 11 | 1011 | 12 | 1100 |
| 13 | 1101 | 14 | 1110 | 15 | 1111 |
Source Device Control
| Function | Command | Feedback Example |
|---|---|---|
| Turn on the input source device, e.g. Blue-ray DVD. | SRCOn% | [CMD]: blue ray power on. |
| Turn off the input source device, e.g. Blue-ray DVD. | SRCOff% | [CMD]: blue ray power off. |
| Play | SRCPlay% | [CMD]: blue ray play. |
| Pause | SRCPause% | [CMD]: blue ray pause. |
| Stop | SRCStop% | [CMD]: blue ray stop. |
| Fast Forward x1 | SRCForward% | [CMD]: blue ray forward. |
| Fast Rewind | SRCBackward% | [CMD]: blue ray backward. |
| Next Section | SRCSkipForward% | [CMD]: blue ray skid forward. |
| Previous Section | SRCSkipBackward% | [CMD]: blue ray skid backward. |
| Open the MENU | SRCMenu% | [CMD]: blue ray menu. |
| Back | SRCBack% | [CMD]: blue ray back. |
| Confirm (OK) | SRCOk% | [CMD]: blue ray OK. |
| Exit | SRCExit% | [CMD]: blue ray Exit. |

Display Device Control
| Function | Command | Feedback Example |
|---|---|---|
| Turn on the display device, e.g. HDTV. | TVOn% | [CMD]: TV Power on. |
| Turn off the display device, e.g. HDTV. | TVOff% | [CMD]: TV Power off. |
| Select input source. | TVINSel% | [CMD]: TV input select. |
| Volume up. | TVVOL+% | [CMD]: TV VOL +. |
| Volume down. | TVVOL-% | [CMD]: TV VOL -. |
| Mute. | TVMUTE% | [CMD]: TV VOL Mute. |
Baud Rate Setting
| Function | Command | Feedback Example |
|---|---|---|
| Set the baud rate as 9600. | UART9600% | [CMD]: Baud 9600. |
| Set the baud rate as 19200. | UART19200% | [CMD]: Baud 19200. |
| Set the baud rate as 38400. | UART38400% | [CMD]: Baud 38400. |
| Set the baud rate as 57600. | UART57600% | [CMD]: Baud 57600. |
| Set the baud rate as 115200. | UART115200% | [CMD]: Baud 115200. |
| Function | Command | Feedback Example |
|---|---|---|
| Up direction | SRCUp% | [CMD]: blue ray up. |
| Down direction | SRCDown% | [CMD]: blue ray down. |
| Left direction | SRCLeft% | [CMD]: blue ray left. |
| Right direction | SRCRight% | [CMD]: blue ray right. |
| Next | SRCNext% | [CMD]: blue ray next. |
| Enter | SRCEnter% | [CMD]: blue ray Enter. |
Firmware Upgrade
This switcher boasts a USB port for online firmware upgrade on the front panel. Follow these steps to upgrade firmware:
- Connect control PC to the USB port of this switcher with USB cable.
- Open “My Computer”, and then find the new disk named BOOTDISK.
- Copy the latest upgrade file (.bin) to this disk.
- The switcher will restart automatically, and then the software update will complete after the USB port is connected successfully.
Note: The USB port can also be used to energize the device.
7. Firmware Upgrade
This switcher boasts a USB port for online firmware upgrade on the front panel. Follow these steps to upgrade firmware:
- Connect control PC to the USB port of this switcher with USB cable.
- Open “My Computer”, and then find the new disk named BOOTDISK.
- Copy the latest upgrade file (.bin) to this disk.
- The switcher will restart automatically, and then the software update will complete after the USB port is connected successfully.
Note: The USB port can also be used to energize the device.
Specification
| Input Signal | 4 HDMI |
|---|---|
| Input Connector | Female Type-A HDMI |
| Output Signal | 1 HDMI |
| Output Connector | Female Type-A HDMI |
| Control Signal | 1 IR IN; 1 RS232 |
| Control Connector | 2 3.5mm mini jacks |
| Video Signal | HDMI2.0 & HDCP2.2 |
| Audio Signal | Dolby Digital, DTS, DTS-HD |
General
| EDID Management | Embedded EDID data and manual EDID management. |
|---|---|
| Resolution Range | 640x480@60Hz ~ 4Kx2K@60Hz 4:4:4. |
| HDMI Cable Length | ≤3m |
| Power Supply | 5VDC, 2A |
| Power Consumption | 5W (Max) |
| Dimension (W*H*D) | 194mm × 16mm × 81mm |
| Net Weight | 202g |
| Temperature | -10℃~ 55℃ |
| Relative Humidity | 10% ~ 90% |
Note: Please adopt qualified HDMI cables compliant with HDMI2.0 for reliable transmission when connecting.
Troubleshooting & Maintenance
| Problems | Potential Causes | Solutions |
|---|---|---|
| Color losing or no video signal output in HDMI display | The connecting cables may not be connected correctly or it may be broken. | Check whether the cables are connected correctly and in working condition. |
| No HDMI signal output in this switcher while local HDMI input is in normal working state | ||
| Splash screen in output devices | Poor quality of the connecting cable | Change for another cable of good quality. |
| Cannot control this switcher by control device (e.g. a PC) through RS232 port | Wrong RS232 communication parameters | Make sure the RS232 communication parameters are correct. |
| This switcher is broken | Send it to authorized dealer for repairing. | |
| Static becomes stronger when connecting the video connectors | Bad grounding | Check the grounding and make sure it is connected well. |
If your problem persists after following the above troubleshooting steps, seek further help from authorized dealer or our technical support.
After-Sales Service
If there appear some problems when running the product, please check and deal with the problems referring to this user manual. Any transport costs are borne by the users during the warranty.
- Product Limited Warranty: The product will be free from defects in materials and workmanship for two years (The purchase invoice shall prevail). Proof of purchase in the form of a bill of sale or receipted invoice which is evidence that the unit is within the Warranty period must be presented to obtain warranty service.
- What the warranty does not cover (servicing available for a fee):
- Technical Support: For any questions or problems, contact your distributor or reseller and tell them the respective product name and version, the detailed failure situation as well as the formation of the cases.
- Warranty expiration.
- Factory applied serial number has been altered or removed from the product.
- Damage, deterioration or malfunction caused by:
- Normal wear and tear.
- Use of supplies or parts not meeting our specifications.
- No certificate or invoice as the proof of warranty.
- The product model showed on the warranty card does not match with the model of the product for repairing or had been altered.
- Damage caused by force majeure.
- Servicing not authorized by distributor.
- Any other causes which does not relate to a product defect.
- Delivery, installation or labor charges for installation or setup of the product.
Legal & Compliance
Product identification
Model: PT-SW-HD41UHD – manual version 1.0
Trademarks and disclaimer
Product model and logo are trademarks. All other company and product names mentioned are trademarks of their respective owners. All rights reserved. No part of this publication may be copied or reproduced without prior written permission. We reserve the right to make changes to the device, packaging or manual and accept no liability for misprints.
EU conformity
PureLink hereby declares that this product PureTools PT-SW-HD41UHD complies with Directives 1907/2006/EU und 2011/65/EU. PureLink GmbH hereby declares that this product PureTools PT-SW-HD41UHD complies with Directives 2014/30/EU and 2014/35/EU.
| Directive / Regulation |
|---|
| 2011/65/EU |
| 1907/2006/EU |
| 2014/30/EU |
| 2014/35/EU |
The full text of the EU Declaration of Conformity is available at: http://www.purelink.de/ce/4251364707005_CE.pdf
Disposal of electrical and electronic equipment
WEEE reg. no.: DE 93847290
The crossed-out wheelie bin symbol on the product, packaging or in this manual means that electrical and electronic equipment must not be disposed of with household waste at the end of its life. Hand in old devices free of charge at a public collection point or return them to a distributor obliged to take them back. Remove batteries and lamps that can be removed without destroying the device before handing it in, and delete any personal data stored on the device. Details are regulated by national law. By returning old devices you help protect the environment.
Batteries
Batteries must not be disposed of with household waste. Return used batteries free of charge to collection points or retailers.
Packaging
Dispose of packaging separately by material (paper/cardboard, plastics) via the local collection systems. Keep packaging material away from children – risk of suffocation. Packaging register LUCID: DE5958616449295.

