LENKENG LKV822 1×2 HDMI Splitter With Extender User Manual
- June 4, 2024
- LENKENG
Table of Contents
LENKENG LKV822 1×2 HDMI Splitter With Extender
Important safety notice
- Do not expose this device to rain, moisture and liquid.
- Do not put any stuff into the device.
- Do not disassemble or repair this device without qualified service technician.
- Make sure the specification matched if using 3rd party DC adapters.
Introduction
This product is a 1 input 2 outputs extender splitter kit, which integrates the functions of distribution and extension. It distributes 1 HDMI input signal to 2 identical signal outputs, extends these signals up to 70 meters, and supports 4K60Hz resolution. It also supports bi-directional IR passback, RS-232 control and other functions. It is suitable for studios, multimedia classrooms, rail transit, etc.
Features
- Zero latency transmission.
- Split and extend one HDMI input signal to two identical network output signals.
- Support up to 4K@60Hz resolution.
- Transmission distance up to 70 meters by using Cat6/6A/7 cables.
- Support bi-directional IR passback.
- The transmitter supports HDMI loop out.
- The receiver can output the digital audio of the TV or source device from the S/PDIF port.
- Support EDID passthrough or manually set the EDID of the product.
- Support RS-232 command control.
- Surge Protection, Lightning Protection, ESD Protection.
- Equipped with rack mount ears.
Package Contents
Installation Requirements
- HDMI source device (PC, DVD, play station, etc.）
- HDMI display device (TV, monitor, projector, etc.)
- UTP/STP CAT6/CAT6A/CAT7 cable. Follow standard IEEE-568B.
It is recommended to choose high-quality network cables
Panel Description
Transmitter (TX)
Receiver (RX)
Installation Procedures
Network cable
Follow the standard of IEEE-568B:
- Orange/white
- Orange
- Green/white
- Blue
- Blue/white
- Green
- Brown/white
- Brown
Connection
Connection instructions
- Connect the source device to the HDMI IN port of the transmitter through an HDMI cable.
- Connect the CAT6 OUT ports of the transmitter to the CAT6 IN port of the receivers through the network cables.
- Connect the HDMI OUTPUT port of the receivers to the display devices through HDMI cables.
- If using HDMI loop out, connect the LOOP OUT port of the transmitter to the display through an HDMI cable.
- If using the RS-232 control, connect the RS-232 port of the transmitter to an external device.
- Plug the power into the devices to get started
IR User Guide
- IR blaster extension cable should plug in the IR OUT port of the transmitter or receiver, IR receiver extension cable should plug in the IR IN port of the transmitter or receivers.
- The emitter of the IR blaster extension cable should be as close as possible to the IR receiving window of the source device.
- Point the remote control at the receiving head of the IR receiver extension cable to operate.
Function setting
RS232 settings
The default configuration is as follows:
- Baud rate : 9600
- Data bits : 8
- Stop bits : 1
- Parity : 0
EDID settings :
There are 16 built-in EDIDs in the product, which can be switched through the
DIP switch. The upward DIP switch indicates “1”, and the downward DIP switch
indicates“0”.
Auto : Auto output at a resolution compatible with all displays
FAQ
- Q: Why there is no image output on the display device?
- Please check the power supply and all the cables are well-connected.
- Please check whether there is an HDMI signal input.
- Please make sure that the corresponding network port output is not turned off by the RS-232 command.
- Q: Why is the output image unstable?
- Please check whether the length of the network cable is within 70 meters.
- Press the “reset” button on TX and RX panels to restart and reconnect.
- Q: Why does the TV have a snowy/fuzzy screen?
- Please change the HDMI cable or use a shorter HDMI cable.
- The recommended length of the HDMI cable connected to the transmitter is ≤3 meters, and the recommended length of the HDMI cable connected to the receiver is ≤5 meters.
Technical Parameters
Disclaimer
The product name and brand name may be registered trademark of related
manufactures. ™ and ® may be omitted on the user manual.The pictures in this
user manual are just for reference. The terms HDMI, HDMI High-Definition
Multimedia Interface, and the HDMI Logo are trademarks or registered
trademarks of HDMI Licensing Administrator, Inc.We reserve the rights to make
changes without further notice to a productor system described herein to
improve reliability, function or design.