HDMI (High-Definition Multimedia Interface) is becoming increasingly popular in the application of video and audio transmission system. But traditional copper wire cable has certain limitations in terms of its electrical performance, such as shorter signal transmission distance and worse signal quality.
Therefore, optical fiber is a better alternative, because it has lower dispersion than copper wire. It can achieve longer signal transmission distances and better signal transmission quality. DVI/HDMI extender is then developed, which uses 2 cores fiber without any copper wire involved. It eliminates radio frequency interference and offers customers with high performance, good signal quality and low cost.
The LNK-KHX2240 series is an example of high performance 4K HDMI KVM Fiber Optic Extender. It supports HDMI v1.4 signals with resolutions up to 4K (4096x2160 / 30p) and can transmit signals over distances up to 300m. It consists of an optical transmitter module that converts the DVI / HDMI signals into light pulses and an optical receiver module that converts these light pulses back to a DVI / HDMI signal.
Moreover, the extender set incorporates a TMDS equalization technology in order to prevent signal degradation.
Real Time Transmission enables streaming of digital video and audio data in real-time. It supports three industry-standard interfaces - DVI 1.0, HDMI v1.4 and HDCP 1.2. Using this technology, resolutions up to 3840*2160/30p, 4096x2160/30p, 3840*2160/60P (YCbCr 420) and 4096*2160/60P (YCbCr 420) can be achieved with high colour depth of up to 24 bits/pixel. In addition, HDMI bit-ratess up to 3.4 Gbps/color with 10.2 Gbps total are also supported.
Real Time Transmission also offers several other features, such as 3D TV, EDID pass-through, USB Keyboard and USB Mouse support, LPCM 7.1, Dolby® TrueHD, and DTS-HD Master Audio™. It is Plug and Play, and also has a built-in EQ (Receiver). Furthermore, its design is mountable and low RFI / EMI profile - suitable for sensitive applications. It also offers a wide transmission range of up to 300m through OM3 Fiber Optical Cable.
Performance | |
Compliance | HDMI v1.4 |
Maximum Pixel Clock Frequency | 340 MHz |
Maximum Video Bit Rate | 3.40 Gbps |
Supported Color Depth | 24-bit |
Supported Resolutions | 1920x1080/60p,3840x2160/30p, 4096x2160/30p, 3840x2160/60p(YCbCr 420),4096*2160/60P(YCbCr 420) |
Digital Audio Support | 7.1 channel LPCM, 192 kHz, 24-bit audio capability |
Connections | |
DVI Input / DVI Output | 1x HDMI Type-A Female connector |
Optical | 1x SFP+ port |
Cable | |
Fiber Cable Type / Max. Length | 50/125μ OM3-300 Multi-Mode Fiber: ≤ 1,000 ft. (≤ 300 meters) |
Extended function | |
KM Support | USB Keyboard x 1 / USB Mouse x1 |
CEC Support | CEC are NOT supported! |
DDC Support | |
EDID Pass-through Support | only 300 meters |
HDCP Pass-through Support | only 300 meters |
Mechanical | |
Construction | High-impact Alufer enclosure |
Dimensions (L x W x H) | 89mm x 104 mm x 28.3 mm |
Net Weight | LNK-KHX2240-S: 500 g LNK-KHX2240-R: 500 g |
Environmental | |
Operating Temperature | -32° to +122° F. (0° to +50° C) |
Storage Temperature | -40° to +185° F. (-40° to +85° C) |
Operating Humidity | 5% to 80% (non-condensing) |
Storage Humidity | 5% to 95% (non-condensing) |
Power Requirements | |
External AC Power Adapter | Input: 100-240VAC / 50-60Hz 0.2A Output: 5VDC, 2.0A 5/2.5mm jack |
Power Consumption | LNK-KHX2240-S: 2.5 watts LNK-KHX2240-R: 3 watts |
Warranty | |
Limited Warranty | 2 year warranty |
Port name | Sender | Receiver |
HDMI interface | HDMI signal input | HDMI signal output |
RESET | System reset button | System reset button |
POWER | Power adapter socket | Power adapter socket |
SFP | SFP+ Module Cage | SFP+ Module Cage |
USB | Connect to PC USB Host Controller | 1*USB Keyboard and 1*USB Mouse |
LED indicator | ||
D1 | ON:Power on | ON:Power on |
D2 | ON: Receiver Optical input is normal and Receiver have a Displayer plugged into HDMI output port | Reserve |
D3 | SFP+ RX Optical signal Input indicator ON: Lost of Optical signal OFF: The optical signal input is normal | SFP+ RX Optical signal Input indicator ON: Lost of Optical signal OFF: The optical signal input is normal |
D4 | Blinking: The Source is connected | Blinking: The monitor is connected |
D5 | SFP+ TX Fault indicator ON: indicates normal operation OFF: indicates a laser fault of some kind | |
D6 | ON:USB Device2 Link OK Blinking:Communication | |
D7 | ON:USB Device1 Link OK Blinking:Communication | ON:USB Device1 Link OK Blinking:Communication |
D8 | ON: Error | ON: Error |
HDMI Fiber Extender technology support and service includes:
Packaging and Shipping:
The HDMI Fiber Extender comes in a sturdy box, with protective foam cushioning to keep the device safe during shipping. The box contains the Extender unit, power supply, and a detailed user manual. All items must be shipped via a reliable and insured shipping service.
Item | Description |
LNK-KHX2240-S | 4K HDMI KVM Fiber Optic Extender Sender Unit |
LNK-KHX2240-R | 4K HDMI KVM Fiber Optic Extender Receiver Unit |