Safety Precautions

• 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 protrusion.
• Do not remove the housing of the device as opening or removing the housing may expose you to dangerous voltage or other hazards.
• Install the device in a place with sufficient 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.

Product Introduction

Thanks for choosing the HDMI 2.0 2x1 Presentation Switcher. The switcher is designed to switch HDMI input or USB-C input to one HDMI output. It supports video resolution up to 4Kx2K@60Hz 4:4:4 8bit, 1080P, and 3D. Besides passing EDID information from the display, there are multiple built-in EDID settings which can be selected by the 4-pin DIP switch on the front panel.
The switcher supports stereo and multichannel audio on the HDMI inputs. In addition to the audio embedded in the HDMI output stream, the audio is simultaneously de-embedded to a balanced analog audio output. It also supports device extension by providing one type-B USB port for host connection, and two type-A USB ports for HID devices such as camera, microphone, keyboard etc.
The switcher features multiple methods of control. When in the AUTO mode, the switcher will automatically switch to the first detected source device. When the active source is removed, the switcher will switch to the lowest numbered input. The switcher can be manually controlled by the front panel buttons and RS232 command. CEC allows the display device can be controlled by the front panel buttons and RS232 CEC commands.

Features

• 18G 2x1 switcher with HDMI and USB-C inputs.
• Supports automatic switching.
• Controllable via front panel buttons and RS232.
• Supports HDMI 2.0, 4Kx2K@60Hz 4:4:4, HDR 10, Dolby Vision, HDCP 2.2.
• Provides charging on USB-C port up to 40W.
• Provides USB data (USB 3.0/2.0) and 4K video transmission on USB-C port.
• Balanced analog audio for audio de-embedding.
• Peripheral units (e.g. microphone and camera) can be connected by type-A USB (USB 3.0/2.0) ports and automatically switched along with HDMI and USB-C input as USB DEVICES for corresponding HOST.
• Smart EDID management capable for various applications and customized setting.
• Front panel buttons trigger both CEC and RS232 commands for display control. (ON, OFF, MUTE, VOL+, VOL -).

Package List

• 1x PT-PSW-21C 18G 2x1 Presentation Switcher
• 2x Mounting Ears with 4 Screws
• 4x Plastic Cushions
• 1x 5-pin Terminal Block
• 1x Power Cord
• 1x Power Adapter (24V DC, 2.71A)
• 1x User Manual

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

Specification

Panel Description

Front Panel

1. Power LED: The LED lights up red when the device is power on.
2. INPUT: A. HDMI: The LED lights up green when the HDMI input is selected in AUTO mode, or lights up orange when the HDMI input is selected in manual mode. B. USB-C: The LED lights up green when the USB-C input is selected in AUTO mode, or lights up orange when the USB-C input is selected in manual mode. C. SELECT AUTO/3s: Press the button to select the next input source, or press and hold the button at least 3 seconds to enable auto switching mode. Note that the factory default switching mode is AUTO.
3. DISPLAY: A. Press ON to turn on the display. B. Press OFF to turn off the display. C. Press to mute/unmute display audio. D. Press to decrease the audio volume gradually, or press and hold it to decrease the audio volume constantly.
4. E. Press to increase the audio volume gradually, or press and hold it to increase the audio volume constantly.
5. EDID: 4-pin DIP switch for EDID setting.
6. FW: Micro-USB port for firmware upgrade.

Rear Panel

1. HDMI IN: Type-A female HDMI input port to connect HDMI video source.
2. USB-C IN: Type-C USB with charging capability to connect the Macbook or other device with SlimPort output. Note: The USB 3.0 cable is recommended to be used to ensure optimal machine performance.
3. HDMI OUT: Type-A female HDMI output port to connect video display.
4. AUDIO OUT: 5-pin terminal block for balanced audio output.
5. RS232: 3-pin terminal block to connect control device (e.g. PC) or third-party device for RS232 control.
6. HOST: Type-B USB ports for host connection.
7. DEVICES: Two type-A USB ports to connect HID devices (e.g. microphone and camera). The HID devices are used to control the HOST when the HDMI input has been selected, or to control the USB-C source device (e.g. Macbook) when the USB-C input has been selected.
8. DC 24V: DC barrel port for power adapter connection.

Usage Precaution

• Make sure all components and accessories are 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.

System Diagram

Manual Switching

When the switcher is in the manual switching mode, press the SELECT AUTO/3s button repeatedly to cycle through the two video inputs, and the corresponding source LED lights up orange immediately.

Automatic Switching

Press and hold the SELECT AUTO/3s button at least three seconds to enable automatic switching. The current input source will not be changed, and its source LED will turn green.

• Press and hold the SELECT AUTO/3s button at least three seconds again can exit AUTO mode, but the input source will not be changed, and the corresponding source LED will turn orange.
• New input: Upon detecting a new input, the switcher will automatically select the new input.
• Press the SELECT AUTO/3s button also can forcibly change the input source.
• Reboot: Once power is restored to the switcher, it will automatically reconnect the input before powered off.
• Source removed: When an active source is removed, the switcher will switch to the other active input.

Display Control

The switcher supports CEC, and the DISPLAY buttons on the front panel are designed for Display On/Off and volume adjustment.

• ON: Display On.
• OFF: Display Off.
• : Mute/unmute display audio.
• : Volume down display audio.
• : Volume up display audio.

EDID Setting

The Extended Display Identification Data (EDID) is used for the source device to match its video resolution with the connected display. By default, the source device obtains its EDID from the first connected display. Meanwhile, since the displays with different capabilities are connected to the switcher, the 4-pin DIP switch on the front panel can be used to set the EDID to a built-in fixed value. Use the following table to determine the setting for the 4-pin DIP switch for specific video resolution and audio capabilities.
The switch represents “0” when in the lower (OFF) position, and it represents “1” while putting the switch in the upper (ON) position.

Note: The EDID DIP switch only used for setting the EDID of HDMI source device, and the EDID of USB-C source device automatically follows the HDCP version of display device.

RS232 Control Software

Connect the RS232 port to control device (e.g. PC) with RS232 cable. The switcher can be controlled by sending RS232 commands.

Installation
Please download the latest Software Version from the link below:
https://docklight.de/download/Docklight.zip
Then follow the installation wizard for installation on Windows 7 and 10.
After the installation, Docklight can be run for the first time and should look like the below screen shot:
Registration is not necessary unless you wish to save settings on exit, so unless you wish to register click on "OK" to close the window.

The next pop-up window can also be closed with "Continue". An empty project is enough to send and receive commands easily (The default setting is always “Start with a blank project / blank script”).
Click “Continue” to

close this window.
Click “OK” to close this window.

Now you are in the main view, where commands are sent and feedback is received.
The next step is to select the correct COM port of the PC. To do this, double-click on "COM1" in the corresponding setup window.
In the following window, select the drop-down menu labeled "Send / Receive on Comm Channel", select the appropriate COM port and then click on "OK" at the bottom right corner.
All other settings can be left at default for most applications, but refer to device RS232 settings to be sure.

Double click on “COM1” to change to the right COM port.

In order to be able to send commands, open communication with the device by clicking on "Play". (1)
Then the keyboard function must be activated, so that commands can be written in the "communication window". (2)
Finally enter the command, for example "50701%". This is then confirmed by pressing "Enter" to send. Any response from the connected device will appear in red. (3)

Select the right COM port.

Click “Play” to open the communication.
Enable the keyboard type in function.
Command sending area.
Monitoring area, indicates if the command sent works.
1
2
3

RS232 Command

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

Note: All commands must end with “<CR><LF>”.In the commands, “[”and “]” are symbols for easy reading and do not need to be typed in actual operation.Please type the command carefully.

Device Control

Source Switching

User-defined EDID

There are five EDID values can be customized by sending the below command.

CEC/RS232 Function Setting

The ending mark of command is “<CR><LF>”.

Display Control

Switcher Baud Rate Setting

Third-party Device Control

When you connect a third-party device (e.g. projector) to the RS232 port of switcher, the third-party device can be controlled simultaneously by the below RS232 commands while pressing the front panel button (ON, OFF, MUTE, VOLUME + or VOLUME -).

Note: The below commands don’t need ending mark.

Panel Drawing

HDMI IN USB-C IN HDMI OUT AUDIO OUT DEVICES
1 2
RS232 HOST
L R
Tx Rx DC 24V
FW
EDID
ON
OFF
1
0
1 2 3 4
OFFONHDMI USB-C SELECT
AUTO/3s
INPUT DISPLAY
168.0mm
24.5 mm

95.0 mm / 2x1

Teleconference Switcher
4K (60Hz 4:4:4) USB-C and HDMI
PT-PSW-21C

Troubleshooting & Maintenance

Note: If your problem still persists after following the above troubleshooting steps, please find further assistance.

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 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 as the proof of warranty.
• The product model shown 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.

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.

Asking for Assistance

Technical Support:
Phone: +49 5971 800299 - 0
Fax: +49 5971 800299 - 99

Technical Support Hours:
8:30 AM to 5:00 PM Monday thru Thursday
8:30 AM to 4:00 PM Friday

Write to:
PureLink GmbH
Von-Liebig-Straße 10
D - 48432 Rheine
www.purelink.de
info@purelink.de

Legal & Compliance

Product identification

Model: PT-PSW-21C – 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.

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.

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.

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.