PureTools PT-PSW-21KVM User manual

User Manual
PT-PSW-21KVM
User Manual
2x2 HDBaseT 3.0 KVM Extender Set
Model PT-PSW-21KVM
Designed in Germany
© 2022 PureLink GmbH All rights reserved. VersionV1.0

User Manual
PT-PSW-21KVM
Preface
Read this user manual carefully before using this product. Pictures shown in this
manual are for reference only. Different model layouts and specifications are subject
to the physical product.
This manual is for operation instructions only, not for any maintenance usage.
In the constant effort to improve our product, we reserve the right to make changes in
functions or parameters without prior notice or obligation.
Trademarks
Product model and logo are trademarks. 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.
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.
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.

User Manual
PT-PSW-21KVM
REACH | 1907/2006/EU
ROHS | 2011/65/EU
PureLink hereby declares that this product PureTools PT-PSW-21KVM complies with
Directives 1907/2006/EU und 2011/65/EU.
EMC / LVD (Electro Magnetic Compatibility / Low Voltage Directive)
PureLink GmbH hereby declares that this product PureTools PT-PSW-21KVM complies
with Directives 2014/30/EU and 2014/35/EU. The full text of the EU Declaration of
Conformity is available at the following Internet address:
http://www.purelink.de/ce/ 4251364734810_CE.pdf

User Manual
PT-PSW-21KVM
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.

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Content
1.Product Introduction.....................................................................................................................3
1.1 Introduction......................................................................................................................... 3
1.2 Feature................................................................................................................................3
1.3 Package List.......................................................................................................................3
2. Panel Description.........................................................................................................................4
2.1 Tranmitter............................................................................................................................4
2.1.1 Front Panel.............................................................................................................4
2.1.2 Rear Panel..............................................................................................................5
2.2 Receiver..............................................................................................................................6
2.2.1 Front Panel.............................................................................................................6
2.2.2 Rear Panel..............................................................................................................6
3. EDID Management......................................................................................................................7
4. Specification..................................................................................................................................8
5. GUI Control................................................................................................................................ 10
5.1 Video Tab..........................................................................................................................11
5.2 Configuration Tab............................................................................................................11
5.2.1 EDID...................................................................................................................... 11
5.2.2 Auto Downscale.................................................................................................. 12
5.2.3 Tags....................................................................................................................... 12
5.3 CEC Tab............................................................................................................................13
5.3.1 Input ...................................................................................................................... 13
5.3.2 Output................................................................................................................... 13
5.3.3 User-defined........................................................................................................ 14
5.4 RS232 Tab........................................................................................................................14
...................................................................................................................................................14
5.5 Network Tab.....................................................................................................................15

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5.6 Access Tab .......................................................................................................................16
5.7 Update Tab.......................................................................................................................17
6. RS232 Control........................................................................................................................... 18
6.1 RS232 Control Software ...............................................................................................18
6.2 RS232 Command...........................................................................................................23
6.2.1 System control.................................................................................................... 23
6.2.2 Source control..................................................................................................... 27
7. System Diagram....................................................................................................................... 32
8. After-Sales Service................................................................................................................... 34
Asking for Assistance................................................................................................................... 36

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1.Product Introduction
1.1 Introduction
PT-PSW-21KVM is an 18Gbps 2x1 switcher extension kit, which supports up to
4K/60/4:4:4, HDR10 and Dolby Vision, HDCP 2.2. It features uncompressed
transmission of 18Gbps signals up to 100m. At the same time, it can be connected to
peripheral KVM equipment, which is very useful in video conference applications.
1.2 Feature
⚫18G, 4K@60HZ 4:4:4, HDR10, Dolby Vision and HDCP 2.2.
⚫1 x HDMI input, 1 x USB-B host, 1 x USB-C input, one HDBaseT output with
HDMI loop output,
⚫6 USB ports for peripheral devices, 2 USB3.0 on Tx(5Gbps), 4 USB2.0 on Rx(3
USB-A+1 1 USB-C),Bandwidth Max up to 250Mbps.
⚫HDBT 3.0 technology, supports uncompressed 18G signal transmission up to
100m
⚫USB-C input support 60W charging when system powers up on Tx end.
⚫The system supports two way PoC.
⚫Auto switch 5V or TMDS detection
⚫Support RS232, CEC & TCP/IP control and 3rd party Dry Contact control
1.3 Package List
⚫1x PT-PSW-21KVM Switcher set
⚫5 x 3-pin terminal block
⚫6 x screws
⚫8 x Plastic Cushions
⚫2 x 5-pin terminal block
⚫4 x mounting ears
⚫1 x DC24V/5A power adapter
⚫1 x Manual
Note: Please contact your distributor immediately if any damage or defect in the
components is found.

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2. Panel Description
2.1 Tranmitter
2.1.1 Front Panel
No.
Name
Description
①
Power LED
1 x green indicator light, the light is always on when the
machine is working, and it goes out when the power is off
②
SELECT
⚫1 x White non-backlit button, 3 x blue indicator lights,
⚫Click the button to select input source, press and hold for
3 seconds to enter or exit automatic switching mode, and
the corresponding indicator is always on
③
DISPLAY
⚫1 x white non-backlit button, 2 x blue indicator lights;
⚫Press the button to send the DISPLAY ON/OFF CEC and
RS232 commands to control the TX and RX display
terminal switches at the same time, and the
corresponding indicator light is always on;
④
BLACK
SCREEN
⚫1 x white non-luminous button, 2 x blue indicator lights;
⚫Press the button to enter or exit the output black screen
state, and the corresponding indicator light is always on;
⑤
EDID
1 x 4-pin DIP switch for EDID management
⑥
DEVICES
2 x USB-A 3.0, connect keyboard, mouse, microphone etc
⑦
ETHERNET
1 x RJ45, used for network passthrough transmission
⑧
FW
1 x Micro-USB, used for MCU firmware upgrade
Note: All the input source LEDs will go out when pressing Black Output button on

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2.1.2 Rear Panel
No.
Name
Description
①
USB-C
1 x USB-C 3.0 input, support external 60W charging
②
HOST
1 x USB-B 3.0, connect to HOST devices such as laptops
③
HDMI IN
1 x HDMI input, connect to HOST devices such as laptops
④
HDMI OUT
1 x HDMI loop output
⑤
HDBT
1 x HDBT output, the green light is always on when the signal
is with HDCP, flashes when the input signal is without HDCP;
the yellow light is always on after the TX and RX are
connected;
⑥
AUDIO
1 x 5-pin balanced audio output, output audio de-embedding
⑦
Grommet
GR1: Correspond the USB-C
GR2: Conrrespond the HDMI
SM: Switch to the current source
BO: Print a black screen to all outputs.
⑧
RS232
LOCAL: Connect the control devices to control the transmitter
PASS: Bidirectional passthrough transmission with Receiver
⑨
Upgrade
1 x Built-in short-handled buttons, press and hold for 3s to
enter the upgrade mode, and the power indicator flashes. At
this time, you can upgrade the firmware through the serial
port, and press the button again to exit the upgrade mode
⑩
TCP/IP
1 x RJ45, TCP/IP control
⑪
DC 24V
Connect DC24V5A power adapter

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2.2 Receiver
2.2.1 Front Panel
No.
Name
Description
①
OUTPUT
⚫1 x HDMI output;
⚫1 x 5-pin balanced audio output, HDMI output audio
de-embedding
②
DEVICES
3 x USB-A 2.0, 1 x USB-C, connect keyboard, mouse,
microphone, printer, camera and other equipment
2.2.2 Rear Panel
No.
Name
Description
①
ETHERNET
1 x RJ45, used for network passthrough transmission
②
HDBT IN
1 x RJ45 interface, the green light is always on when the
signal is with HDCP, flashes when the input signal is not HDCP;
the yellow light is always on after the TX and RX are
connected
③
RS232
1 x 3-pin phoenix head, RS232 passthrough transmission
④
Power LED
1 x green indicator light, always on when machine is working
⑤
DC 24v
Connect DC24V5A power adapter
DEVICES
21
4
3
HDMI AUDIOHDMI AUDIO
OUTPUT L R
1 2
RS232
Tx Rx
DC 24V
ETHERNET HDBT IN
1 2 3 4 5

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3. EDID Management
EDID are control by the EDID DIP switch, the specific description is as follows:
⚫0000 Learn the display EDID in the default mode: read the EDID of the TX
HDMI output and RX HDMI output, and output the EDID with the lower
resolution of the two, if you can’t learn it, then use the built-in
1920x1080@60 8bit Stereo
⚫0001 1920x1080@60 8bit High Definition Audio
⚫0010 3840x2160@60Hz Deep Color Stereo Audio
⚫0011 3840x2160@30Hz 8bit Stereo Audio
⚫0100 3840x2160@30Hz Deep Color High Definition Audio
⚫0101 3840x2160@60Hz 4:2:0 Deep Color Stereo Audio
⚫0110 3840x2160@60Hz Deep Color High Definition Audio
⚫0111 3840x2160@60Hz Deep Color HDR LPCM 6CH
⚫1011 Custom EDID1
⚫1100 Custom EDID2
⚫1101 Custom EDID3
⚫1110 Custom EDID41111 EDID management

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4. Specification
Transmitter
Receiver
Video
Video Input
(1) HDMI IN, (1) USB-C IN
(1) HDBT IN
Video Output Connector
(1) Type-A female HDMI
(1) Type-C
(1) RJ45
Input Resolution
HDMI: Up to 4K@60Hz 4:4:4
HDR10, Dolby Vision
USB-C: Up to 4K@60Hz 4:4:4
Up to 4K@60Hz 4:2:0
Video Output
(1) HDMI OUT (1) HDBT OUT
(1) HDMI
Video Output Connector
(2) Type-A female HDMI
(1) Type-A female HDMI
Output Resolution
HDMI: Up to 4K@60Hz 4:4:4
HDR10, Dolby Vision
HDBT: Up to 4K@60Hz 4:2:0
Up to 4K@60Hz 4:4:4
HDR10, Dolby Vision
HDMI Standard
Up to HDMI 2.0b
Up to HDMI 2.0b
HDCP Version
Up to HDCP 2.2
Up to HDCP 2.2
Audio
HDMI Embedded Audio
Format
LPCM 7.1 audio, Dolby Atmos® , Dolby® TrueHD, Dolby
Digital® Plus, DTS:X™, and DTS-HD® Master Audio™
pass-through.
Audio Output
Connector
(1) 5-pin terminal block
(1) 5-pin terminal block
Frequency Response
20Hz–20KHz, ±3dB
Max Output Level
0.88 Vrms ± 0.5 dB. 2 V = 16 dB headroom above -10 dBV
(316 mV) nominal consumer line level signal
SPDIF: ±0.05dBFS
THD+N
< 0.05% (-80 dB), 20 Hz –20 kHz bandwidth, 1 kHz sine
at 0 dBFS level (or max level)
SNR
> 80dB, 20Hz-20 kHz bandwidth
SPDIF: > 90dB, 20Hz-20 kHz bandwidth

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Crosstalk Isolation
< -80 dB, 10 kHz sine at 0 dBFS level (or max level before
clipping)
L-R Level Deviation
< 0.3 dB, 1 kHz sine at 0 dBFS level (or max level before
clipping)
Output Load Capability
1k ohm and higher (supports 10x paralleled 10k ohm
loads)
Noise Level
>70dB @ 1 kHz
Control
USB Data
Max up to 5Gbps
Max up to 250 Mbps
Control port
(1) EDID switch, (2) DEVICES
(1) ETHERNET, (1) FW,
(1) HOST, (2) GR, (2) RS232
(1) TCP/IP
(4) DEVICE, (1) ETHERNET
(1) RS232
Control Connector
(1) 4-pin DIP switch
(2) USB Type-A, (1) RJ45
(1) Micro-USB, (1) USB Type-B
(2) 3-pin terminal block
(2) 3-pin terminal block, (1)
RJ45
(3) USB Type-A, (1) USB
Type-C
(1) RJ45, (1) 3-pin
terminal block
General
Operation Temperature
-5 ~ +55℃
Storage Temperature
-25 ~ +70℃
Relative Humidity
10% ~ 90%
External Power Supply
Input: AC 100~240V, 50/60Hz; Output: 24V DC 5A.
Power Consumption
76.5W (Max)
USB-C Power Charging
60W(Max)
Dimension (W*H*D)
265W x 150D x 32H mm
173W x 95D x 24.5H mm
Net Weight
1020g
410g

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5. GUI Control
The switcher can be controlled via TCP/IP. The default IP settings are:
IP Address: 192.168.0.178
Subnet Mask: 255.255.255.0
TCP/IP port: 4001
TCP/IP Commands are same as RS232
Type 192.168.0.178 in the internet browser, it will enter the below log-in webpage:
There are three selectable usernames:
Username
Password
Access Tab
admin
admin
All tabs
User2
User2
configurable
User3
User3
configurable
The username and password can be changed via Access tab.
Here we login as “admin” as an example to introduce each GUI tab.

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5.1 Video Tab
⚫Choose the HDMI, USB-C or Auto source according to actual usag
5.2 Configuration Tab
5.2.1 EDID
⚫Choose the desired EDID format or define the appropriate EDID format.

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5.2.2 Auto Downscale
⚫Enable or disable the auto Downscale in TX or RX output.
5.2.3 Tags
⚫Choose and enter the tags, then click confirm to change the tags.

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5.3 CEC Tab
5.3.1 Input
⚫Select the function and press to control the input
5.3.2 Output
⚫Select the function button and press to control the output

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5.3.3 User-defined
⚫Define the Trigger of input and output
5.4 RS232 Tab

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⚫Baud Rate: Supports 9600, 19200, 38400, 57600, 115200
⚫Command Ending: NULL, CR, LF or CR+LF can be chosen.
⚫Command: Type the command in the box to control the third-party device which
is connected to the RS232 port of the PT-PSW-21KVM.
5.5 Network Tab
⚫Static IP or Dynamic Host Configuration Protocol (DHCP).
⚫Modify the static IP Address, Subnet Mask, and Gateway.

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5.6 Access Tab
⚫Modify the login username and password.
⚫Lock or unlock the front panel buttons.
⚫Enable or disable GUI automatic log-off mode.
⚫Configure accounts user2 and user3
⚫Factory default reset