4K 20KM HDMI+KVM Fiber Extender【M-HFK20U】

1.HD video signal resolution can reach up to 4K@60Hz (4:4:4)
2.Transmit HDMI video and audio signals over long distances through optical fiber up to 20KM
3.Suppor KVM, use keyboard and mouse to operate remote devices (or RS232 function is optional)
4.Support one-way embedded independent audio input and output
5.Support loop output
6.Support HDMI 2.0 and HDCP 2.2 standards
7.Support EDID learning, improve compatibility, match signal sources and display devices for automatic storage
8.Built-in automatic equalization system, the picture is smooth, clear and stable
9.Built-in ESD electrostatic protection circuit to protect system safety in all aspects
10.Support 5-12V power supply

Product Information：

I. Introduction
M-HFK20U transmits high-definition video signals over long distances through optical fiber, supports KVM or RS232 function, and can operate remote devices using keyboard and mouse or RS232. This product transmits HDMI high-definition audio and video signals with resolution of 3840*2160@60Hz over 20KM without compression through 10 Gigabit optical fiber, it supports KVM signal or RS232(optional), independent audio transmission, and supports local loop output, which reduces costs for users while ensuring signal stability. This model has a built-in learning EDID function, which greatly improves the compatibility of the device.

This equipment has long transmission distance, low cost of use, easy installation, good compatibility, and is a stable and efficient transmission method. It is widely used in audio and video transmission of high-definition conference systems, high-definition film and television shooting, high-definition teaching systems, high-definition digital advertising, etc.

II. Features:
*Transmit HDMI video and audio signals over long distances through optical fiber, up to 20 kilometers;
*HD video signal resolution can reach up to 4K@60Hz (4:4:4);
*Support KVM, use keyboard and mouse to operate remote devices (or RS232 function is optional);
*Supports one-way embedded independent audio input and output;
*Supports loop output;
*Support HDMI 2.0 and HDCP 2.2 standards;
*Support EDID learning, improve compatibility, match signal sources and display devices for automatic storage;
*Built-in automatic equalization system, the picture is smooth, clear and stable;
*Built-in ESD electrostatic protection circuit to protect system safety in all aspects
*Support 5-12V power supply

III. Product interface pictures

Port name	Description
HDMI IN/OUT	HDMI signal input/output
KVM IN/OUT	KVM signal input/output
Fiber	Fiber Interface（LC）
Audio	3.5mm audio input/output
Green terminal	RS232 input/output
DC/5~12V	Power adapter input
LED indicator	Description
P	Power light
S	On（Working），off（No input/output）
F	Flashing quickly (communication in progress), off (fiber optic not communicating)

IV. Specification

Description		Parameter
Video	Standards	HDMI 2.0; HDCP 2.2
	HDMI pixel clock	340MHz，all-digital
	HDMI port bandwidth	total bandwidth 10.8Gbps
	Resolution	3840X2160@60Hz(4：4：4) backward compatibility
	Video port	HDMI-A Port
	HDMI port Impedance	100Ω
Mouse/keyboard	Interface	PC：USB-B Receptacle Keyboard and mouse：USB-A standard Port
Audio	Interface	3.5mm Stereo audio socket
	Audio format	44.1K,48K,96K,176K,192K
	Signal Type	Stereo
Fiber optic	Fiber Type	Single fiber single mode	Dual fiber single mode
	Wavelength	TX-1330nm RX-1270nm	TX/RX-1310nm
	Fiber Interface	LC
	Transmitted optical power	-6～0dBm
	Transmission distance	20KM
	Transmission rate	10Gbps
	Laser type	DFB CWDM
Other	Power supply	Power Adapter：DC5~ 12V
	Power dissipation	MAX 10W
	Temperature	-40℃ ~ +80℃
	Humidity	5% ~ 90%
	Dimension	947225mm
	Warranty	1 year free warranty

V. Installation Process:

1. Connect the HDMI signal source to the HDMI input port of the TX
2. Connect the HDMI OUT of the RX to the display device
3. Use an optical fiber cable to connect the optical fiber port of TX and RX
4. Connect the TX and RX to the power supply. When the indicator light P/S is always on, light F flashes quickly, it is working.

Troubleshooting

1. The red light (P) is not bright or the brightness is low, Check whether the power
     adapter is normal
2. The green light (S) is not on, Check if the signal source has started or output; The
     green light stays on indicates regular work
3. The green light (F) is not on, check if the fiber optic module is plugged in properly
     and if the fiber optic cables are working properly; (F)Flashing light indicates
     regular work
4. If there is no image on the display, check if the display has selected the correct
     channel input. If the image is abnormal, refer to the EDID function application

VI. Package

1. HDMI transmitter                 x1 pcs
2. HDMI receiver                    x1 pcs
3. 12G optical fiber module         x1 pair
4. USB Cable                        x1 pcs
5. Power adapter                    x2 pcs
6. User Manual                      x1 pcs

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