Product Introduction

Introduction

The 48G 4×1 KVM meeting room switcher enables fast video and device switching, allowing four computers (2× USB-C and 2× HDMI + USB-B) to connect to room peripherals such as a 4K/5K/8K TV, touchscreen, mouse, keyboard, and camera. The USB-C inputs also provide shared 100W power delivery. It supports automatic switching or manual control via the front panel button, hotkeys, mouse, RS-232, TCP/IP, and GUI. Ideal for meeting rooms and huddle spaces, it enables multiple PCs to share a single set of displays and USB peripherals.

Features

• HDCP 2.3 compliant
• Supports ultra-wide screen and video resolution up to 8K@60Hz, as specified in HDMI 2.1
• Supports video fast switching, keyboard, mouse switching
• Built-in EDID emulators on each input port ensure PCs get correct information
• Supports hot plug, to disconnect or connect devices to the KVM at any time
• Supports manual switching via front panel buttons, keyboard hotkeys, IR remote, mouse gestures, API command and Web GUI
• Supports auto switching to monitor computers in a specified time interval
• Video and audio zero latency
• The integrated USB 3.0 ports allow you to share USB peripherals like printer, scanner, webcam and hard drive between computers with data transfer rate up to 5Gbps
• USB-C ports support DP Alt-mode, USB 3.0 and 100W charging

Package List

• 1× 8K60 4x1 KVM Switcher
• 1× 24V/8A Power Supply with US/EU/UK/AU Conversion Plug
• 2× USB Cable (USB 3.0, Type A Male to Type B Male, 1.8m)
• 1× 3pin-3.5mm Phoenix Connector (male)
• 1× IR Receiver Cable (1.5m)
• 1× IR Remote
• 4× Machine Screw (KM3*6)
• 2× Mounting Ear
• 1× User Manual

Panel Description

Front Panel

Rear Panel

IR Remote

Press this button to power on the switcher or set it to standby mode.

Press this button to enable/disable the auto switching function.

Press 1/2/3/4 button to select the PC 1/2/3/4, and the corresponding LED on the front panel will light in green.

Press this button to select the PC 1/2/3/4 circularly.

IR Receiver

Keyboard & Mouse Hotkey Function

The HOTKEY button on the front panel allows you to enable/disable the hotkey switching function.
When the hotkey switching function is enabled, the two USB 3.0 ports (mouse and keyboard) only support USB 1.1 mouse and keyboard, which can be used for hotkey switching.
When the hotkey switching function is disabled, the two USB 3.0 ports (mouse and keyboard) support USB 3.2 Gen 1 device.

(1) Keyboard hotkeys are defined by default as follow:

Note: Do not use the keypad on the right of the keyboard.

(2) Mouse hotkeys are defined by default as follow:
Double-Click Middle-Right (Double-click the mouse scroll wheel, and then click the right button): Switch to next input
Double-Click Middle-Left (Double-click the mouse scroll wheel, and then click the left button): Switch to previous input

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.
• To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this product near water.
• Do not remove the housing of the device as opening or removing housing may expose you to dangerous voltage or other hazards.
• 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.
• Information on disposal for scrapped devices: do not burn or mix with general household waste, please treat them as normal electrical wastes.
• Unplug the power cord when left unused for a long period of time.
• Keep the module away from liquids.
• Install the device in a place with fine ventilation to avoid damage caused by overheat.
• Do not put any heavy items on the extension cable in case of extrusion.
• Refer all servicing to qualified service personnel.

Specification

Technical

Transmission Distance

• 3m/9.8ft over HDMI 8K passive cable
• 1m/3.3ft over USB 3.2 Gen 1 5Gbps passive cable

ESD Protection

IEC 61000-4-2:
±8kV (air-gap discharge) & ±4kV (contact discharge)

Connection

Input

• 2× USB-C [USB-C, 24-pin female, USB tier 1]
• 2× USB HOST [USB-B, 9-pin female, USB tier 1]
• 2× HDMI [HDMI Type A, 19-pin female]

Output

• 4× USB DEVICE [USB-A, 9-pin female, USB tier 2]
• 1× HDMI [HDMI Type A, 19-pin female]
• 1× AUDIO OUT [3.5mm audio jack]

Control

• 1× RS-232 [3pin-3.5mm phoenix connector]
• 1× TCP/IP [RJ45 connector]
• 1× IR EXT [3.5mm audio jack]

Mechanical

• Housing: Metal Enclosure
• Color: Black
• Dimensions: 270mm [W] × 120mm [D] × 30mm [H]
• Weight: 1.03kg

Power Supply

• Input: AC 100-240V 50/60Hz, Output: DC 24V/8A (US/EU standard, CE/FCC/UL certified)

Power Consumption

150W (Max)

Operation Temperature

• 0°C ~ 40°C

Storage Temperature

• -20°C ~ 60°C

Operating Humidity

• 20%~80% relative humidity, non-condensing

Storage Humidity

• 10%~90% relative humidity, non-condensing

Web GUI User Guide

This product can be controlled by Web GUI. The operation method is shown as below:

1. Get current IP Address. The default IP address is 192.168.0.178 (when the system is not connected to a router). You can get the current IP address via API command control. Send the ASCII command r ip addr through a Serial Command tool, then you’ll get current IP address (The IP address is variable, depending on what the specific machine returns).
2. Connect the TCP/IP port of the switcher to a PC with an UTP cable (as shown in the following figure), and set the IP address of the PC to be in the same network segment with the switcher.
3. Enter current IP address in your browser on the PC to visit Web GUI page. There will be a login page, as shown below:

For the details of API control, please refer to “API Control Command”.

Information Page

Select the Username and enter the password. The default passwords are:

The Information page provides basic information about the model name, software version, IP information and current machine temperature.
The buttons at the top right of the web interface are always available:

• Clicking the Logout button will log out of current user.
• Clicking the Standby button will set the switcher to standby mode.

Status Page

The Status page displays the input & output port connection status, resolution, color space, color depth and HDCP.

Preset Page

EDID Page

• You can set up to 5 preset scenes on the Preset page.
• ① Preset Name: You can name the preset scene.
• ② Preset Save: Click the Save button to save the scene.
• ③ Preset Clear: Click the Clear button to clear the saved scene.
• ④ Preset Recall: Click the Recall button to recall the saved scene.

You can do the following operations on the EDID page.

1. EDID list: Click the drop-down list to set EDID for each input port.
2. EDID download: Click the drop-down list to select USB-C 1\USB-C 2\HDMI 3\HDMI 4\HDMI OUT for EDID download. Then click the Download button and generate a .bin file.
3. User-defined EDID: Click the Upload EDID button to upload the defined EDID. Please note that only two user-defined EDID and .bin files are supported. Click the Save EDID button to save the user-defined EDID. Then it will be displayed in the EDID drop-down list, corresponding to the User Defined 1/User Defined 2.

AV Page

You can do the following operations on the AV page.

1. Output: PC 1/2/3/4: Select PC 1/2/3/4 as the input source. Auto: Click Auto to enable or disable the auto switching function. Off: Click Off to turn off the HDMI output channel.
2. HDCP: You can select any of the options for HDCP: Auto: HDCP version follows the corresponding display device. HDCP 1.4: HDCP 1.4 compliant. HDCP 2.2: HDCP 2.2 compliant. Reserved: User-defined mode.
3. L/R Audio: Click On/Off button to turn on or turn off the audio output.

USB Page

You can do the following operations on the USB page.

1. USB Switch: Follow Video: Click this button to set the USB devices follow the video. PC1/PC2/PC3/PC4: Select PC1/PC2/PC3/PC4 as the HOST for USB device.
2. USB Power: You can set 5V detection for each USB device: Follow Host: 5V detection of the USB device follows the connection status of the selected host. Force 5V Always Output: 5V detection of the USB device is forced to be enabled. Disable 5V Output: 5V detection of the USB device is forced to be disabled.
3. Hotkey Setting: Hotkey: Click On/Off button to enable or disable the hotkey function.

You can define any three keyboard values for the actions. Click Save to save the defined value. Click Clear to delete the defined value and set a new one. Note that it can't conflict with the setting of other hotkeys.

RS-232 Page

You can do the following operations on the RS-232 page.

1. RS-232 Settings: Set baud rate, data bit, parity and stop bit, and then click "Save" to take effect.
2. RS-232 Commands (Display Auto Power): RS-232 Commands: Turn on or turn off RS-232 commands control. If it is turned on, "Display On Command" will be sent after the Delay 1 time, and "Display Input Select" command will be sent after the Delay 2 time when the device is powered on. "Display Off Command" will be sent after the Delay time when the device is powered off.

Note: It is available when Display Auto Power is enabled and Control Type is selected as RS-232 or RS-232 and CEC on System page.

HEX: Turn on or turn off the HEX format. If it is turned off, the commands will be sent in ASCII format.

Network Page

You can modify the IP Mode/IP Address/Gateway/Subnet Mask/Telnet Port/Domain Name as required on the Network page. Click “Save” to save the settings, and then it will come into effect.
If the Mode is “Static”, you can set manually the IP Address/Gateway/Subnet/Telnet Port/Domain Name as required.
If the Mode is “DHCP”, it will search and be filled with the IP Address assigned by the router automatically. You can't modify it now.

RS-232 Commands (General)

1. Command: Enter a RS-232 command.
2. HEX: Turn on or turn off the HEX format. If it is turned off, the command will be sent in ASCII format.
3. Command Ending: Select a symbol used to end the command.
4. Then Click "Send" to send the RS-232 command.

System Page

You can do the following operations on the System page.

1. Display Control: CEC Command: Enable or disable CEC control on the TV. Display Auto Power: Set to turn on or turn off the TV via the power switch. Auto Power Off Timer: Set the auto power-off time, and then click "Save" to take effect. Control Type: Set and save the control type as required: CEC, RS-232, CEC and RS-232.
2. System Utilities: Front Panel Buttons: Turn on or turn off the functions of the front panel buttons. IR: Turn on or turn off the functions of IR function. Beep: Turn on or turn off the functions of beep.

RS-232 Baud: Set and save the baud rate: 4800/9600/19200/38400/115200.
You can also reboot, restore factory, export settings or import settings via clicking the corresponding buttons.

1. Firmware Update: Support update for MCU, Web and Video. Choose the update file first, and then click Update.
2. Account Passwords: Enter the correct Old Password, New Password, and Confirm Password, and then click “Save”.

Note: Input rules for changing passwords:
(1) The password can’t be empty.
(2) New Password can’t be the same as Old Password.
(3) New Password and Confirm Password must be the same.

API Commands

The product also supports API command control. Connect the RS-232 port of the PT-SW-UH41-48G to the PureLink PTM-RS100 configurable RS-232 cable (or other appropriate cable) and your control device. The DIP settings are as follows: Then open a Serial Command tool on PC to send ASCII commands to control the product. The ASCII command list of the product is shown below.

Communication Protocol

RS-232 Baud rate: 115200; Data bit: 8; Stop bit: 1; Parity bit: none; TCP/IP Port: 8000
The end mark of command is <CR><LF>
x - Parameter 1.
y - Parameter

System Diagram

The following diagrams illustrate typical input and output connections that can be utilized with this device:

The terms HDMI and HDMI High-Definition Multimedia interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

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.

Firmware Upgrade

Please follow the steps as below to upgrade firmware via the RS-232 port or WebGUI.

1. Prepare the PC tool (.exe) and the latest upgrade file (.bin) on PC. Rename the upgrade file as “MCU_MAIN_PT-SW-UH41-48G_Vxx.xx.xx.bin”.
2. Connect the RS-232 port on the switcher to the PC.
3. Connect the power supply to the switcher and power on.
4. Run GTool.exe on PC.
5. Select the connection port and baudrate, and then click "Connect". "13 Bytes" must be checked.

1. Click "Open" to select the prepared upgrade file, and then click "Upgrade".

1. When the upgrade is completed, it will pop up "Upgrade successfully". If the firmware updating is fail, the name of upgrade file (.bin) should be confirmed, and then follow the above steps to update again.

WebGUI Upgrade

1. Prepare the PC tool (.exe) and the latest upgrade file (.bin) on PC. Rename the upgrade file as “MCU_MAIN_PT-SW-UH41-48G_Vxx.xx.xx.bin”.
2. Log in Web GUI, and enter System page.

1. Click "Choose File" to select the prepared upgrade file, and then click "Upgrade". When completed, the progress bar shows 100% and "Upgrade successfully" will pop up.

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.

1. Product Limited Warranty: This product will be free from defects in materials and workmanship for three 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):
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.

• 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.

Asking for Assistance

Technical Support

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

• Phone: +49 5971 800299 - 0
• Fax: +49 5971 800299 – 99
• www.purelink.de
• info@purelink.de

Legal & Compliance

Product identification

Model: PT-SW-UH41-48G – 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.

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.