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4x1 4K Multiformat Presentation Switcher with Scaler
Discontinued

PT-PSW-41H

4x1 4K Multiformat Presentation Switcher with Scaler

The PureTools Scaler Switcher 4x1 is a multiformat presentation switcher that provides 2 HDMI, 1 DP, and 1 VGA input, outputting to HDMI with support for up to 4K UltraHD resolution at 60Hz. It features up- and …

ManualControl (TCP/IP)FAQSpecificationsDatasheetFirmwareCE
Chapter 1 of 20

Safety precautions

To ensure 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.
Chapter 2 of 20

Introduction to PT-PSW-41H

The PT-PSW-41H is a professional 4K Scaler Switcher scaling HDMI/DP/VGA video signal to an HDMI output by selecting output resolution from 720p to 4K via OSD.
It can work with HDMI, DP, and VGA table grommets to switch source and output black screen for display (table grommets sold separately). CEC and IR learning function is used to control display via front panel buttons. With one built-in IR In, one IR Out and one RS232, the IR and RS232 control signals can be used for display control.
The PT-PSW-41H supports advanced EDID management and is HDCP 2.2 compliant. Video and audio sources can be selected via front panel button, table grommets or RS232 commands by third party control device. Moreover, it features volume buttons to turn up/down the volume level.

Chapter 3 of 20

Feature

  • Features 2 HDMI inputs, 1 DP input and 1 VGA input with auxiliary audio.
  • The output resolution can be selected from 720p to 4K x 2K@30Hz 4:4:4 to assure preferred output.
  • Supports IR learning to set button function for controlling the connected display.
  • Supports volume control via buttons.
  • Allows the connected display to be controlled via CEC, IR, RS232 commands or front panel buttons.
  • Supports HDMI/VGA/DP table grommets to control source switching and black screen showing.
  • Automatically switch based on video sensing.
  • Supports RS232 control.
  • Supports IR pass through.
  • Supports advanced built-in EDID management.
Chapter 4 of 20

Package List

  • 1 x PT-PSW-41H 4x1 4K Scaler Switcher
  • 1 x Power Adapter (12VDC, 2A)
  • 2 x Mounting Ears with 4 Screws
  • 4 x Plastic Cushions
  • 6 x 3-pin Phoenix Connectors

Note: Please contact your distributor immediately if you found any damage or defect in the components.

Chapter 5 of 20

Front Panel

No.NameDescription
①Built-in IR ReceiverReceive IR signal from IR remote.
②Power LEDRed when powered on.
③Signal LEDAUTO: Auto switching activity LED. H1&H2: 1-HDMI/ 2-HDMI input activity LED. DP: DP input activity LED. VGA: VGA input activity LED.
④Auto Switching SelectorPress this to enter / exit auto switching mode.
⑤Volume DownPress this to decrease the output volume of scaler switcher and display.
⑥Volume UpPress this to increase the output volume of scaler switcher and display.
⑦IR LEARNINGPress this to enter IR learning mode.
⑧DISPLAY ON & Activity LEDPress this to turn on the display, and it can be customized via IR learning or RS232 commands.
⑨DISPLAY OFF & Activity LEDPress this to turn off the display, and it can be customized via IR learning or RS232 commands.
⑩OUTPUT RESPress this to enter On Screen Display menu (OSD) to select the output resolution.
⑪FIRMWAREMicro USB port, used for firmware update.
Chapter 6 of 20

Rear Panel

No.NameDescription
①HDMI OUTHDMI output port, connect with display.
②1-HDMI IN & 2-HDMI INHDMI input ports, connect with HDMI source.
③3-DP INDP input port, connect with DP source.
④4-VGA INVGA input port, connect with VGA source.
⑤AUDIO INVGA auxiliary audio input.
⑥IR OUTConnect with IR emitter to control display via IR.
⑦RS232Serial port, connect a control device (PC) to control the PT-PSW-41H. Connect the display to control it via front panel buttons.
⑧AUDIO OUTAudio output port, connect with speaker.
⑨GR1,GR2, GR3&GR4Connect with HDMI, DP or VGA table grommet to control source switching and black screen showing.
⑩DC 12VConnect the including power adaptor.
Chapter 7 of 20

Usage Precaution

  • Verify that all components and accessories are included prior to installation.
  • System should be installed in a clean environment with proper temperature and humidity (see page17 for limits).
  • If the scaler switcher will be permanently mounted to a surface, attach the included mounting ears with the supplied screws.
  • If the scaler switcher will be sitting on a shelf, attach the included plastic cushions to the bottom of the unit.
  • All of the power switches, plugs, sockets and power cords should be insulated and safe.
  • All devices should be connected before switched live.
Chapter 8 of 20

System Diagram

Chapter 9 of 20

Signal Switching

  1. Manual Switching Press the SORCE/AUTO-3s button to select the HDMI, DP or VGA source, the corresponding green activity LED will be lighted up.
  2. Auto Switching Long-press the SORCE/AUTO-3s button at least 3 seconds to enable auto switching mode, the green activity LED (AUTO) will be lighted up. Press this button again to select next source and exit auto mode.

The auto switching mode abides by the following principles:

  • New Input : Once new source is connected, the new source will be automatically switched to input signal.
  • Rebooting Device : The PT-PSW-41H has the ability to save the latest configuration before losing power. The switcher automatically enters the mode as latest mode used; moreover, it detects all the inputs and memorizes the connection status for future rebooting use. If the latest displayed signal is still available, the unit will output the signal. Otherwise, the unit will detect all the input signals with priority from HDMI to VGA. When the first signal was detected, it will transfer to output.
  • Signal Removing : Once removing the current display signal, PT-PSW-41H will detect all input signals with priority from HDMI to VGA. It will transfer the signal firstly detected to be available to the output device.
Chapter 10 of 20

Volume Adjustment

  1. Press the Volume Up button to increase the output volume of scaler switcher and display.
  2. Press the Volume Down button to decrease the output volume of scaler switcher and display.
Chapter 11 of 20

Display Control

For compatibility with different displays, two customizable buttons on the front panel can be used to turn on/off the display. These two buttons can be customized by sending RS232 commands or IR learning function.

By sending RS232 commands

  1. Connect a control PC to the RS232 port.
  2. Install RS232 control software on the PC, please refer to 6 RS232 control for more details.
  3. Find the corresponding display control command in the user manual of the display, then configure the ON or OFF button according to the below command format.
Configure ON buttonCommand FormatDescription & ExampleFeedback
HEX/-ax:XX XX XX XX"x" represents the baud rate: x=0(2400)/1(4800)/2(9600)/3(19200)/4(38400)/5(57600)/6(115200). " XX XX XX XX " is display control command (HEX, max 48 byte). For example: /-ax:30 31 32 33 XX XX XX XX (30 31 32 33)
ASCII/+ax:XXXXXXX"x" represents the baud rate: x=0(2400)/1(4800)/2(9600)/3(19200)/4(38400)/5(57600)/6(115200). " XXXXXXX " is display control command (ASCII, max 48 byte). /+ax:0123456XXXXXXX (0123456)
Configure OFF buttonCommand FormatDescription & ExampleFeedback
HEX/-Ax:XX XX XX XX"x" represents the baud rate: x=0(2400)/1(4800)/2(9600)/3(19200)/4(38400)/5(57600)/6(115200). " XX XX XX XX " is display control command (HEX, max 48 byte). For example: /-ax:30 31 32 33 XX XX XX XX (30 31 32 33)
ASCII/-Ax:XXXXXXX"x" represents the baud rate: x=0(2400)/1(4800)/2(9600)/3(19200)/4(38400)/5(57600)/6(115200). " XXXXXXX " is display control command (ASCII, max 48 byte). /+ax:0123456XXXXXXX (0123456)
  1. Disconnect the control PC, then connect the display to the RS232 port.
  2. Press ON or OFF button to turn the display on or off.

IR Learning

  1. Press the IR LEARNING button to enable IR learning mode, the ON and OFF LEDs will light up.
  2. Press one of the display control buttons, e.g. press ON button, and its LED will start to flash.
  3. Point the display remote at the front panel built-in IR receiver and then press the Power On button on the remote, and the ON LEDs will go dark.
  4. Repeat the above all three steps to set the OFF button function.
  5. Press ON or OFF button to turn the display on or off.
Chapter 12 of 20

Output Resolution Selection

  1. Resolution Selection Step1: Press the OUTPUT RES button to enter the following resolution list shown as below. Step2: Press this button again to move up and down in the list. Step3: Long-press this button at least 2 seconds to confirm the selected output resolution.
  2. Resolution Reset Long-press the OUTPUT RES button at least 5 seconds to reset the output resolution to default 720P.
Chapter 13 of 20

RS232 Control Software

  • Installation: Copy the control software file to the computer connected with PT-PSW-41H.
  • Uninstallation: Delete all the control software files in the corresponding file path.

Basic Settings:
First connect PT-PSW-41H with all needed input and output devices, then connect it with a computer which is installed with RS232 control software. Finally, double-click the software icon to run this software. Here we take the software CommWatch.exe as example. The icon is shown as below:

The interface of the control software is shown as below:

Please set the parameters of COM number, bound rate, data bit, stop bit and the parity bit correctly, then the command is ready to be sent in the Command Sending Area.

  • Parameter Configuration Area
  • Monitoring Area, indicates if the sent command is working.
  • Command Sending Area
Chapter 14 of 20

RS232 Command

Communication protocol: RS232 Communication Protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none

System Configuration

CommandFunctionFeedback
SFUDSoftware upgradingSoftware Update
GET VERCheck the software versionVersion Vx.x.x
FRSTRestore factory defaultFactor Reset
WAKEWake up the systemWake Up
STBYTurn the system to standby modeGo To Standby
GET STAGet the system statusInput:VGA Resolution: 1920x1080 Manual Switching Source Volume: 60 EDID: Initial HDCP: ON

Signal Switching

CommandFunctionFeedback
SWIN H1Switch to HDMI inputSwitch to hdmi
SWIN H2Switch to HDMI2Switch to hdmi2
SWIN DPSwitch to DPSwitch to dp
SWIN VGSwitch to VGA inputSwitch to vga
AUTO 01Enable auto switchingAuto Switching
AUTO 00Disable auto switchingManual Switching

Audio Setting

CommandFunctionFeedback
AUMT S1Mute source audioAudio Mute Source: Enable
AUMT S0Unmute source audioAudio Mute Source: Disable
VOLS APIncrease the source volume to xx (xx=0~60)Source Volume: xx
VOLS ANDecrease the source volume to xx (xx=0~60)Source Volume: xx
VOLS xxSet the source volume to xx (xx=0~60)Source Volume: xx

Output Resolution Selection

CommandFunctionFeedback
SRES 01Change output resolution to 3840x2160Resolution: 3840x2160
SRES 02Change output resolution to 1920x1080Resolution: 1920x1080
SRES 03Change output resolution to 1280x720Resolution: 1280x720
VGAAAutomatic image correction for VGA inputVGA Input Auto

EDID Management

CommandFunctionFeedback
EDID DFEDID defaultEDID: Initial
EDID MNGet the EDID data from displayEDID: Manage
EDID USWhen the command applied, system prompts to upload the user-defined EDID file (.bin) from U-disk.EDID: User

Baudrate Setting

CommandFunctionFeedback
BAUD 115200Set RS232 baudrate to 115200Set Baudrate 115200
BAUD 57600Set RS232 baudrate to 57600Set Baudrate 57600
BAUD 38400Set RS232 baudrate to 38400Set Baudrate 38400
BAUD 19200Set RS232 baudrate to 19200Set Baudrate 19200
BAUD 9600Set RS232 baudrate to 9600Set Baudrate 9600
BAUD 2400Set RS232 baudrate to 2400Set Baudrate 2400
BAUD 4800Set RS232 baudrate to 4800Set Baudrate 4800
Chapter 15 of 20

Input & Output

ParameterSpecification
Input(2) HDMI; (1) DP; (1) VGA; (1) AUDIO
Input Connector(2) Type A Female HDMI; (1) DisplayPort; (1) Female VGA (15-pin); (1) 3.5mm Mini Jack
Output(1) HDMI; (1) AUDIO
Output Connector(1) Type A Female HDMI; (1) 3-pin Phoenix Connector
Control(1) IR OUT; (1) RS232; (1) GR1; (1) GR2; (1) GR3; (1) GR4
Control Connector(1) 3.5mm Mini Jack; (5) 3-pin Phoenix Connectors
Chapter 16 of 20

General

ParameterSpecification
Input ResolutionHDMI: Up to 4K@60Hz 4:2:0, Supports HDMI1.4, and HDCP2.2 Compliant. VGA: Up to 1920x1200@60Hz.
Output Resolution3840x2160@30Hz,1920x1080@60Hz, 1080x 720p@60hz, Supports HDMI1.4, and HDCP1.4 Compliant.
Bandwidth10.2Gbps
EDIDIn-built EDID Management
Power SupplyInput:100V~240V AC; Output:12VDC 2A
Power Consumption10w (Max)
Operation Temperature-10 ~ +40℃ (+14℉~ +104℉)
Storage Temperature-15 ~ +55℃ (+5℉~ +131℉)
Relative Humidity10% ~ 90%
Dimension (W*H*D)230mm x 23.6mm x 100mm (754ft x 77ft x 328ft)
Net Weight (g)320g
Chapter 17 of 20

Panel Drawing

DC 12V AUDIO IN 4-VGA IN 3-DP IN 1-HDMI IN 2-HDMI IN IR OUT AUDIO OUT GR1 GR2 GR3 GR4 SM OB Tx Rx SM OB L R HDMI OUT RS232 FW IR OUTPUT RES H1 H2 DP VGAAUTO SOURCE / AUTO-3s ON OFF IR LEARNING DISPLAY 100.0 mm(328ft) 230.0 mm(754ft) 23.6 mm(77ft)

Chapter 18 of 20

Troubleshooting & Maintenance

ProblemsPotential CausesSolutions
Output image with white noise.Bad quality of the connecting cableTry another high quality cable.
Output image with white noise.Fail or loose connectionMake sure the connection is good.
No output image when switchingNo signal at the input / output endCheck with oscilloscope or multimeter if there is any signal at the input/ output end.
No output image when switchingFail or loose connectionMake sure the connection is good.
No output image when switchingThe switcher is brokenSend it to authorized dealer for repair.
POWER indicator doesn’t work or no respond to any operationFail connection of power cord.Make sure the power cord connection is good.
Cannot control the device by control device (e.g. a PC) through RS232 portWrong RS232 communication parametersType in correct RS232 communication parameters.
Output image with white noise.Broken RS232 portSend it to authorized dealer for checking.
Output image with white noise.Bad quality of the connecting cableTry another high quality cable.

Note: If your problem persists after following the above troubleshooting steps, seek further help from the authorized dealer or our technical support.

Chapter 19 of 20

After-Sales Service

If problems occur when running the product, please check and deal with the problems referring to this user manual. Any transport costs are borne by the user during the warranty period.

  1. 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.
  2. What the warranty does not cover (servicing available for a fee): 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 provided as proof of warranty. The product model shown on the warranty card does not match with the model of the product for repair, or has been altered. Damage caused by force majeure. Servicing not authorized by distributor. Any other cause which does not relate to a product defect. Delivery, installation or labor charges for installation or setup of the product.
  3. 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.
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