User Manual for PureTools models including: PT-SW-HD41USB, PT-SW-HD41USB HDMI and KVM Switcher, HDMI and KVM Switcher, KVM Switcher, Switcher

Selena Chen

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PURELINK SELECTOR 4:1 HDMI 4K 18GB KVM

User Manual PT-SW-HD41USB User Manual


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User Manual PT-SW-HD41USB

User Manual
4x1 4K HDMI with KVM Switcher Model PT-SW-HD41USB Designed in Germany
© 2022 PureLink GmbH All rights reserved.

VersionV1.0

User Manual PT-SW-HD41USB
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-SW-HD41USB
REACH | 1907/2006/EU ROHS | 2011/65/EU PureLink hereby declares that this product PureTools PT-SW-HD41USB 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-SW-HD41USB 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/ 4251364734964_CE.pdf

User Manual PT-SW-HD41USB
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.

User Manual PT-SW-HD41USB
Content
1.Product Introduction ..................................................................................................................... 2 1.1 Introduction......................................................................................................................... 2 1.2 Feature ................................................................................................................................ 2 1.3 Package List....................................................................................................................... 2
2. Panel Description......................................................................................................................... 3 2.1 Front Panel ......................................................................................................................... 3 2.2 Rear Panel.......................................................................................................................... 4
3. Specification.................................................................................................................................. 5 4. System Diagram .......................................................................................................................... 7 5. Button Control............................................................................................................................... 8
5.1 Manual Switching.............................................................................................................. 8 5.2 Auto Switching ................................................................................................................... 8 6. Table Grommet Control .............................................................................................................. 8 7. RS232 Control..............................................................................................................................9 7.1 RS232 Control Software ................................................................................................. 9 7.2 RS232 Command ...........................................................................................................14
7.2.1 Device Control .................................................................................................... 14 7.2.2 Signal Switching ................................................................................................. 16 7.2.3 Audio Setting ....................................................................................................... 17 7.2.4 EDID Management ............................................................................................ 17 7.2.5 Baud Rate Setting .............................................................................................. 19 7.2.6 Display Control ................................................................................................... 19 8. Firmware Upgrade.................................................................................................................... 20 9. Troubleshooting & Maintenance............................................................................................ 21 10. After-Sales Service ................................................................................................................ 22 Asking for Assistance ................................................................................................................... 24
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User Manual PT-SW-HD41USB

1.Product Introduction
1.1 Introduction
Thanks for choosing the professional PT-SW-HD41USB 4x1 Switcher. The switcher features four HDMI video inputs and one HDMI output. It supports HDMI video resolution up to 4K@60Hz 4:4:4 HDR 10 and Dolby Vision. The switcher provides one stereo audio output for audio de-embedding, and provides four type-B USB ports and three type-A USB ports for KVM management, the four HDMI computers can be controlled via one keyboard, one mouse and one monitor. In addition, the switcher features four GR ports to connect the PT-IPF-HU interface panels for source selection and black screen setting. The switcher can also be controlled via RS232 and front panel buttons.
1.2 Feature
 4x1 HDMI 2.0 Switcher with KVM.
 Supports video resolution up to 4K@60Hz 4:4:4, HDR 10 and Dolby Vision.
 HDCP 2.2 compliant.
 Compatible with Windows, Linux and Mac OS.
 3.5mm stereo audio output for audio de-embedding.
 Convenient and cost-effective USB 3.0 peripheral sharing.
 Controls four HDMI computers via one keyboard, one mouse and one monitor.
 KVM auto-switching based on TMDS/5V detection.
 Controllable by buttons, RS232 commands and the PT-IPF-HU interface panels.  Simplifies wiring for easy installation

1.3 Package List
 1x 4x1 Switcher  2x Mounting Ears with 4 Screws  4x Plastic Cushions

 1x Power Adapter (12V DC 2A)  4x 3-pin Terminal Blocks  1x User Manual

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Note: Please contact your distributor immediately if any damage or defect in the components is found.
2. Panel Description
2.1 Front Panel

3

1

2

3

4

PC

1

2

3

4

SOURCE

12

1

2

3

4

AUTO

FW

4

56

No. Name  POWER LED  SOURCE LEDs
 PC LEDs
 SOURCE BUTTONS
 AUTO  FW

Description The LED illuminates red when power is applied
Total four LEDs, any one of which illuminates blue to indicate its corresponding HDMI port is connected to an active source device. Total four LEDs, any one of which illuminates blue to indicate its corresponding type-B USB port is connected to an active PC. Four buttons for input source selection, one of which illuminates blue to indicate which source device is selected. Press it to enable auto switching mode, and it will illuminate blue. Press again can exit auto switching mode. Micro-USB port for firmware upgrade.

Note: All the input source LEDs will go out when pressing Black Output button on

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2.2 Rear Panel

2

3

7

PC 1 SOURCE 1

PC 2

PC 3

SOURCE 2

SOURCE 3

1

PC 4

1

2

3

DEVICES

SM OB

SM OB

Tx Rx

GR1 SM OB

GR2 SM OB

RS232

SOURCE 4

DISPLAY AUDIO OUT

GR3

GR4

45 6

DC 12V
8

No. Name  SOURCE1~SOURCE4  PC1-PC4
 DEVICEs(1-3)
 DISPLAY  AUDIO OUT  GR1~GR4  RS232  DC 12V

Description Four type-A female HDMI input ports to connect HDMI source devices (PC, Blu-ray DiscTM or DVD player, etc.). Four type-B USB ports to connect PCs. The PC can be a source device connected to the corresponding HDMI input port. Three type-A USB ports to connect USB devices (Keyboard, Mouse or camera, etc.). These USB devices are used to control the PC which is connected to the selected HDMI input port and the corresponding type-B USB port. These type-A USB ports can power these USB devices with 1A. Type-A female HDMI output port to connect display device (e.g. Projector). 3-pin terminal block to connect speakers or amplifiers for audio output. Four 3-pin terminal blocks to connect four PT-IPF-HU interface panels for source selection and black screen setting.
3-pin terminal blocks to a control device (e.g. PC) to
control the switcher..
Power port for power adapter connection.

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3. Specification

Video Input Input Input Connector HDMI Input Resolution HDMI Standard HDCP Version Video Output Output Output Connector HDMI Output Resolution HDMI Standard HDCP Version Audio Output Output Connector Audio Format Frequency Response
Max Output Level
THD+N
SNR
Crosstalk Isolation
L-R Level Deviation
Output Load Capability

(4) SOURCE 1~4 (4) Female type-A HDMI Up to 4K@60Hz 4:4:4, HDR10, Dolby Vision 2.0 2.2
(1) DISPLAY
(1) Female type-A HDMI Up to 4K@60Hz 4:4:4, HDR10, Dolby Vision 2.0 2.2
(1) AUDIO OUT (1) 3.5mm mini stereo audio jack PCM 2CH 20Hz to 20KHz, ±1dB 2.0Vrms ± 0.5dB. 2V = 16dB headroom above -10dBV (316 mV) nominal consumer line level signal. < 0.05%, 20Hz - 20KHz bandwidth, 1KHz sine at 0dBFS level (or max level). > 80dB, 20Hz - 20KHz bandwidth. < -80 dB, 10 kHz sine at 0dBFS level (or max level before clipping). < 0.05 dB, 1 kHz sine at 0dBFS level (or max level before clipping). 1Kohm and higher (supports 10x paralleled 10k ohm loads).

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Noise Level Control
Control

-80dB
(1) FW, (4) PC 1~4, (3) DEVICES 1~3, (4) GR 1~4, (1) RS232

Control Connector
General Bandwidth Operation Temperature Storage Temperature Relative Humility Type-A USB Power Supply System Power Supply System Power Consumption Dimension (W*H*D) Net Weight

(1) Micro-USB, (4) Type-B USB, (3) Type-A USB, (5) 3-pin Terminal Blocks
18Gbps -10 ~ +55 -25 ~ +70 10%-90% 1A Input:100V~240V AC; Output: 12V DC 2A 14W(Max) 200mm x 40mm x 100mm 685g

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User Manual PT-SW-HD41USB
4. System Diagram
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 The following diagrams illustrate typical input and output connections that can be utilized with this switcher: The switcher is used alone:
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User Manual PT-SW-HD41USB
5. Button Control
5.1 Manual Switching
Press button 1~4 to the corresponding HDMI input source.
5.2 Auto Switching
Press AUTO to enable auto switch mode, and then the button LED will illuminate blue. When in auto mode, the switcher follows the rules in the certain circumstances:
 The switcher will automatically switch to the first available active input starting at input 1 to 4.
 Press the source button (1, 2, 3 or 4) can directly change the input source.  New Input: Upon detecting a new input, the switcher will automatically
select the new source.  Detection input signal source: 5V(Default) or TMDS.  Reboot: Once power is restored to the switcher, if the last selected source is
still available, the switcher will still output this signal, otherwise, the switcher will switch to the first available active input starting at input 1.  Source Removed: When an active source is removed, the switcher will switch to the first available active input starting at input 1.  Press AUTO again can exit auto switch mode, but the input source will remain the current setting. Note: The factory default is auto switching mode.
6. Interface Panel Control
The optional interface panel (PT-IFP-HU) can be used for input source selection and black screen. Press Show Me on interface panel (PT-IFP-HU) to select HDMI source. Press Black Output on interface panel (PT-IFP-HU) to let display be black screen.
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User Manual PT-SW-HD41USB
7. RS232 Control
7.1 RS232 Control Software
Here take the software docklight as an example.  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.
Click "OK" to close this
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
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User Manual PT-SW-HD41USB
with a blank project / blank script")
Click "Continue" 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.
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User Manual PT-SW-HD41USB
Double click on "COM1" to change to the right COM port.
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.
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User Manual PT-SW-HD41USB
Select 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)
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User Manual PT-SW-HD41USB

Click "Play" to open the
communication.

Enable the keyboard type in
Monitoring area, indicates if the command sent works.

Command sending area

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7.2 RS232 Command
Note: All commands need to be ended with "<CR><LF>".
7.2.1 Device Control

Command

Description

#GET_FIRMWARE_VERS ION
#SET_KEYPAD_LOCK 0
#SET_KEYPAD_LOCK 1

Get the software version.
Unlock the front panel buttons (Factory default). Lock the front panel buttons.

#GET_KEYPAD_LOCK

Get the locking status of front panel buttons.

#SET_AUTO_KEY_LOCK 0 #SET_AUTO_KEY_LOCK 1
#GET_AUTO_KEY_LOCK
#SET_HDMI_DETECTIO N_MODE 0 #SET_HDMI_DETECTIO N_MODE 1

Unlock the AUTO button.
Lock the AUTO button.
Get the locking status of AUTO button. Set the detection method of HDMI source input to 5V. Set the detection method of HDMI source input to TMDS.

#GET_HDMI_DETECTIO Get the detection method of

N_MODE

HDMI source input.

#GET_STATUS

Get the system status.

Command Example and Feedback
@V1.0.0
@FRONT PANEL UNLOCK! @FRONT PANEL LOCK! @FRONT PANEL UNLOCK! @FRONT PANEL LOCK!
@AUTO PANEL UNLOCK!
@AUTO PANEL LOCK!
@AUTO PANEL UNLOCK! @AUTO PANEL LOCK! @INPUT_SIGNAL_DETEC TION 0! @INPUT_SIGNAL_DETEC TION 1! @INPUT_SIGNAL_DETEC TION 0! @INPUT_SIGNAL_DETEC TION 1! @RS232 QUERY STATUS! @WUH4-HUB @V1.0.0 @FRONT PANEL UNLOCK! @HDMI OUT SWITCH TO AUTO MODE!

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Command

Description

#FACTORY_RESET

Restore factory default

#REBOOT #HELP

Reboot the device.
Get all commands and its usage.

Command Example and Feedback @HDMI IN SWITCH TO 1! @OUTPUT_HDCP 0! @INPUT_SIGNAL_DETEC TION 0! @IIS OUT ON! @SWITCHMODE 0! @USB SWITCH MODE TO 0! @USB SWITCH TO 1! @AUTO PANEL UNLOCKED! @RS232 BAUDRATE IS 1! @FACTORY DEFAULT! @WUH4-HUB @V1.0.0 @HDMI OUT SWITCH TO AUTO MODE! @OUTPUT_HDCP 0! @IIS OUT ON! @INPUT_SIGNAL_DETEC TION 0! @HDMI IN SWITCH TO 1! @USB SWITCH MODE TO 0! @RS232 BAUDRATE IS 1!
@REBOOT
...

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7.2.2 Signal Switching

Command #SET_AV H1 #SET_AV H2 #SET_AV H3 #SET_AV H4 #GET_AV #SET_AUTO_SWITCH 1 #SET_AUTO_SWITCH 0
#GET_AUTO_SWITCH
#SWITCH_MODE 1 #SWITCH_MODE 0 #GET_SWITCH_MODE
#SET_SWITCH_USB [PARAM]

Description
Switch to HDMI source 1.
Switch to HDMI source 2.
Switch to HDMI source 3.
Switch to HDMI source 4.
Get the current HDMI source. Enable auto switching (Factory default). Disable auto switching
Get the auto switching status.
Switching mode 1. Quick switching. Switching mode 2. Normal switching. Get the switching mode. Switch USB to [PARAM]. [PARAM] = 1~4. 1 - PC1 2 - PC2 3 - PC3 4 - PC4

Command Example and Feedback @HDMI IN SWITCH TO 1! @HDMI IN SWITCH TO 2! @HDMI IN SWITCH TO 3! @HDMI IN SWITCH TO 4! @HDMI IN SWITCH TO 1! @HDMI OUT SWITCH TO AUTO MODE! @HDMI OUT SWITCH TO MANUAL MODE! @HDMI OUT SWITCH TO AUTO MODE! @HDMI OUT SWITCH TO MANUAL MODE!
@SWITCHMODE 1!
@SWITCHMODE 0!
@SWITCHMODE 0! #SET_SWITCH_USB 1
@SET SWITCH MODE 1! @SET USB SWITCH TO 1!

#GET_SWITCH_USB

Get the PC which switching USB to.

@USB SWITCH TO 1!

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User Manual PT-SW-HD41USB

Command

Description

#SET_USB_SWITCH_MO Set USB switching mode to

DE 0

follows the video switching.

#SET_USB_SWITCH_MO DE 1

Set USB switching mode to
command control by "#SET_SWITCH_USB".

#GET_USB_SWITCH_M ODE

Get USB switching mode.

Command Example and Feedback #SET_USB_SWITCH_MO DE 0
@SET USB SWITCH MODE 1!
@USB SWITCH MODE TO 0!

7.2.3 Audio Setting
Command #SET_IIS 1 #SET_IIS 0 #GET_IIS

Description
Turn on stereo audio output. Turn off stereo audio output. Get the stereo audio output status.

Command Example and Feedback @IIS OUT ON!
@IIS OUT OFF! @IIS OUT ON! @IIS OUT OFF!

7.2.4 EDID Management

Command
#SET_EDID_MODE [PARAM]

Description
[PARAM]= 0000~0011 [PARAM]=0000, set the EDID mode to Pass-through (Factory default). If the source device can't read EDID from display device, it will use the built-in EDID: 3840x2160@60Hz Deep Color Stereo Audio. [PARAM]=0001/0010/0011, set the EDID of source device to user-defined EDID 0001/0010/0011.

Command Example and Feedback #SET_EDID_MODE 0000
@EDID_MODE 0000!

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User Manual PT-SW-HD41USB

Command #GET_EDID_MODE #EDIDR [PARAM]
#UPLOAD_USER_EDID [PARAM]

Description Get the EDID mode.
Get the EDID value. [PARAM]= 0000~0011.
[PARAM]=0001/0010/0011, upload user-defined EDID. When the command applied, system prompts to upload the EDID file (.bin). Operation will be cancelled in 10 seconds.

Command Example and Feedback
@EDID_MODE 0000!
@EDID HEX STRING OF '0000': 00 FF FF FF FF FF FF 00 41 0C F2 08 50 12 00 00 ... ...
#UPLOAD_USER_EDID 0001
@PLEASE SEND THE EDID FILE! ... ... @RECEIVED THE FILE, LENGTH=256! @EDID0001 UPDATE SUCCESSFULLY!

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7.2.5 Baud Rate Setting

Command

Description

#SET_RS232_BAUD 1 Set RS232 baud rate to 9600.

#SET_RS232_BAUD 2 Set RS232 baud rate to 19200

#SET_RS232_BAUD 3 Set RS232 baud rate to 38400

#SET_RS232_BAUD 4 Set RS232 baud rate to 57600

#SET_RS232_BAUD 5 Set RS232 baud rate to 115200

#GET_RS232_BAUD

Get the RS232 baud rate.

Command Example and Feedback @RS232 BAUDRATE IS 1! @RS232 BAUDRATE IS 2! @RS232 BAUDRATE IS 3! @RS232 BAUDRATE IS 4! @RS232 BAUDRATE IS 5! @RS232 BAUDRATE IS 1!

7.2.6 Display Control

Command

Description

#SET_THE_DISPLAY_TO Set the display to output black

0

screen.

#SET_THE_DISPLAY_TO 1

Wake up the display screen.

#GET_THE_DISPLAY

Get the status of display device.

Command Example and Feedback @THE DISPLAY SIDE SCREEN IS BLACK! @THE DISPLAY IS ALREADY OFF! @WAKE UP THE SCREEN! @THE DISPLAY IS ALREADY ON! @THE DISPLAY IS OFF! @THE DISPLAY IS ON!

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User Manual PT-SW-HD41USB
8. Firmware Upgrade
Please follow the steps as below to upgrade firmware by the FW port on the front panel: 1) Prepare the latest upgrade file (.bin) and rename it as "FW_MERG.bin" on PC. 2) Power off the switcher, and connect the FW port of switcher to the PC with USB
cable. 3) Power on the switcher, and then the PC will automatically detect a U-disk named
of "BOOTDISK". 4) Double-click the U-disk, a file named of "READY.TXT" would be showed. 5) Directly copy the latest upgrade file (.bin) to the "BOOTDISK" U-disk. 6) Reopen the U-disk to check the filename "READY.TXT" whether automatically
becomes "SUCCESS.TXT", if yes, the firmware was updated successfully, otherwise, the firmware updating is fail, the name of upgrade file (.bin) should be confirm again, and then follow the above steps to update again. 7) Remove the USB cable after firmware upgrade. 8) After firmware upgrade, the switcher should be restored to factory default by sending command.
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9. Troubleshooting & Maintenance

Problems
Output image with white noise.

Potential Causes Bad quality of the connecting cable.
Fail or loose connection.

No output image when switching.

No signal at the input / output end.
Fail or loose connection.

Solutions Try another high quality cable.
Make sure the connection is good
Check with oscilloscope or multimeter if there is any signal at the input/ output end.
Make sure the connection is good.

The switcher is broken.

POWER indicator doesn't work or no respond to any operation.
Cannot control the device by control device (e.g. a PC) through RS232 port.

Fail connection of power cord.
Wrong RS232 communication parameters.
Broken RS232 port.

Send it to authorized dealer for repairing.
Make sure the power cord connection is good.
Type in correct RS232 communication parameters.
Send it to authorized dealer for checking.

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10. 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):  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.
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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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
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References

Microsoft Word 2016