Lenkeng LKV372KVM HDMI and USB Extender User Manual

Lenkeng LKV372KVM HDMI and USB Extender

Important Safety Notice

1. Do not disassemble the device to repair during the working process to avoid electric shock.
2. Please cut off the power before installation. Live installation may damage the equipment.
3. Do not expose the devices to rain, moisture, and liquid.
4. Use a 5V/1A DC adapter only. Make sure the specification matched if using 3rd party DC adapters.

Introduction

This HDMI KVM Extender includes a transmitter and a receiver, allowing the HDMI signal to be transmitted up to 70 meters at 1080p resolution using a Cat6/6A/7 network cable. It adopts a point-to-point connection configuration and supports KVM. It is perfect for outdoor advertising, monitor system, home entertainment, conference, etc.

Features

1. Zero latency.
2. Support up to 4K@30Hz resolution.
3. Support CAT6/6A/7 network cables, 1080p@60Hz transmission distance is up to 70 meters, 4K@30Hz transmission distance is up to 40 meters.
4. Support KVM function.
5. Support HDR10.
6. Lighting protection, surge protection, ESD protection.
7. Automatically adjusts parameters to match different network cables and achieve the best display performance.

Package Contents

Installation Requirements

1. HDMI source device (DVD, game console, set-top box, PC, etc.)
2. HDMI display devices like TV, and projectors with an HDMI port.
3. UTP/STP Cat6/6A/7 cable follows standard IEEE-568B.

Interfaces

Transmitter (TX)

1. DC 5V Connect with 5V/1A power adapter
2. HDMI Input Connect with HDMI source device
3. Reset Button Press the button to restart the device
4. RJ45 Output Connect with CAT6/6A/7 network cable
5. KVM Indicator
   • Light off: the USB port and the computer have not established a connection
   • Steady on: the USB port is connected to the computer, but no KVM data is transmitted
   • Light flash: the KVM data is transmitting
6. Power Indicator
   • Light flash: it is powered on, but no video data is transmitted
   • Steady on: the video data is transmitting
7. USB-A Port Connect to the computer with a USB cable

Receiver (RX)

1. DC5V Connect with 5V/1A power adapter
2. HDMI Output Connect with HDMI display device
3. Reset Button Press the button to restart the device
4. RJ45 Input Connect with CAT6/6A/7 network cable
5. KVM Indicator
   • Light off: the USB port and the computer have not established a connection
   • Steady on: the USB port is connected to the computer, but no KVM data is transmitted
   • Light flash: the KVM data is transmitting
6. Power Indicator
   • Light flash: it is powered on, but no video data is transmitted
   • Steady on: the video data is transmitting
7. USB-A Port Connect to the mouse and keyboard

Installation Procedures

1. The network cable should follow the standard of IEEE-568B. It is recommended to select a network cable with less loss and crosstalk.
2. Orange/white
3. Orange
4. Green/white
5. Blue
6. Blue/white
7. Green
8. Brown/white
9. Brown
10. Connection
11. Connection instruction
12. Connect the HDMI port of the source device to the HDMI IN port of the transmitter via an HDMI cable.
13. Connect the CAT6 OUT port of the transmitter and the CAT6 IN port of the receiver via a network cable.
14. Connect the HDMI port of the display device to the HDMI OUT port of the receiver via an HDMI cable.
15. Use the USB cable to connect the computer to the transmitter, and connect the mouse and keyboard to the USB port of the receiver.
16. Plug the power into the devices to get started.

FAQ

Q: Why there is no image/image or sound is not played smoothly?
A：

1. Press the “RESET” button on the receiver to restart the device.
2. Reconnect the devices with a shorter network cable.

Q: Why does the power indicator always flash?
A:

1. Check whether the network cable uses IEEE-568B wiring standards.
2. Check whether the source device and the transmitter are connected well.
3. Reset the transmitter or receiver and connect it again.

Q: Why does the receiver‘s power indicator stay on but there is no image output?
A:

1. Press the “RESET” button on the receiver to restart the device.
2. Check whether the display device and the receiver are connected well.
3. Reconnect the network cable or re-power the receiver.

Specification

Items

|

Specification

---|---
Power Supply| Voltage/Current| DC5V/1A
Power consumption| TX<3W； RX<3W
HDMI Performance and Interface| HDMI compliance| HDMI 1.4
HDCP compliance| HDCP 1.4
HDMI Performance and Interface| HDMI resolution| 800×600, 1024×768, 1280×720,

1280×960, 1366×768, 1440×900,

1680×1050, 1920×1080, 480i@60Hz,

480p@60Hz, 576i@50Hz,

576p@50Hz, 720p@50/60Hz,

1080i@50/60Hz,

1080p@24/25/30/50/60Hz,

3840×2160@24/25/30Hz

---|---|---
Audio formats| DTS, DTS-HD, PCM, LPCM
HDR| Supported
EDID through| Supported
Input and output TMDS signal| 0.7~1.2Vp-p(TMDS)
Input and output DDC signal| 5Vp-p(TTL)
Transmission Distance| Cat6/6A/7| 1080p@60Hz transmission 70 meters 4K@30Hz transmission 40 meters
Protection Level|

Electrostatic protection of the whole machine

| Implementation of the standard: IEC61000-4-2

1a Contact discharge level 2 （±4KV）

1b Air discharge level 3 ( ±8KV)

Operating Environment| Working temperature| -20~60℃
Storage temperature| -30~70℃
Humidity (no condensation)| 0～90%RH
Body Properties| Dimension| 75.0(L) x 60.0(W) x 20(H) mm
Weight| TX: 123g  RX: 125g
Color| Black

Disclaimer

The product name and brand name may be registered trademarks of related manufacturers. ™ and ® may be omitted from 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 right to make changes without further notice to a product or system described herein to improve reliability, function, or design.

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