Many friends asked whether you can achieve HDMI signal long-distance transmission, this is OK, today we take a look at it.
First of all, let’s take a look at the features of the latest HDMI 2.0b:
1. Support (HDR) high dynamic range video transmission
2. Up to 18Gbps wideband
3. Resolution increased to 4K, 3840*2160 resolution and 50FPS, 60fps frame rate.
4. Up to 32 audio channels, imagine an immersive multi-dimensional audio experience.
5. Up to 1536khz audio sample rate, providing the highest audio fidelity.
6. Simultaneous transmission of dual video streams, allowing different users to watch different videos on the same screen.
7. Simultaneous transmission of multiple audio streams to multiple users (up to 4)
8. Provide a new experience with a wide-angle cinema 21:9 aspect ratio
9. Dynamic automatic sound and picture synchronization
General HDMI signal transmission below 30 meters, then for the quality of the general cable about the maximum distance of 15 meters to 20 meters or so, for good quality HDMI line can transmit more than 25 meters, or even 30 meters, if only the simple transmission of HDMI signal to the display device, HDMI signal does not pass through other equipment, the total length of the 30 meters within 30 meters, it is recommended that the longer the distance needs to choose the better wire.
The HDMI extender method realizes long-distance transmission
HDMI network conversion extender
1. HDMI signal does not pass through other devices (transmission 120 meters)
HDMI signals generally cannot be transmitted directly to more than 30 meters with HDMI wire, and there are almost no HDMI finished lines above 30 meters on the market. We can use the network cable extension signal method, with HDMI network cable extender to extend the signal, HDMI network cable extender is divided into the transmitting end (HDMI input, network cable output) and the receiving end (network cable input, HDMI output), can extend 100 meters (5 class network cable), 120 meters (class 6 network cable).
2. The HDMI signal needs to pass through other devices (transmission 60 meters)
If you need to go through HDMI image processing equipment (such as HDMI splitter, HDMI switcher, HDMI matrix, etc.) from the signal source to the display.
In general, it is recommended to put the HDMI image processing equipment in the middle, so that the distance between the signal source and the HDMI image processing equipment and the HDMI image processing equipment to the display screen is as equal as possible, the device supports the input of 30 meters of HDMI line, supports the output of 30 meters of HDMI line, a total of 60 meters can be transmitted, the product itself with enhanced and amplified HDMI signal, can ensure high image quality and long-distance transmission.
HDMI IP extender
The HDMI IP extender has a multi-wideband cable with IP protocol in it, which can realize the IP dialing function and eliminate the use of network cables.
The HDMI IP extender can transmit TX and the RX signal of the 254 receiver RX at most through the router or switch.
One-to-one link transfer mode
One-to-many transfer link mode
Many-to-many transmission mode
HDMI IP extenders can be used in a wide range of applications
1. Connect an HDMI switcher to remote devices such as Blu-ray and media players to create your own wireless home theater.
2. Ideal for meeting rooms, which can share briefing content and video conferencing to four different locations, with a stand-alone transmission distance of up to 120 meters and a further hierarchical transmission.
3. It can become part of the digital signage architecture and broadcast advertising or promotional videos wirelessly in the exhibition hall, boutique or automobile dealership.
HDMI fiber extender
In order to solve the problem of image mosaic, color distortion, inability to transmit problems such as image mosaic, color distortion, and inability to transmit HDMI signals when the HDMI signal is transmitted over a long distance, the optical fiber extender is designed for the network flat panel display and large-screen curtain wall display advertising engineering, industrial automation control, medical equipment, security monitoring, multimedia teaching and other display system engineering in the display system engineering of high-quality HDMI video signal long-distance transmission and professionally designed set HDMI signal conversion, drive, reception and restore functions as one of the signal transmission system, The transmission distance can reach up to 20 km.
HDMI fiber optic cable (100m-300m)
Because the optical fiber HDMI high-definition line adopts the optical fiber transmission medium, the long-distance signal transmission attenuation can be basically ignored, and the longest transmission distance can reach more than 300m. For HIFI, projectors, and video surveillance systems, the long-distance transmission signal of traditional copper cables is distorted, which directly leads to the unavailability or poor experience of the equipment. The user uses the optical fiber HDMI line, when arranging these devices, there is no need to worry about the attenuation or distortion of the transmission signal, and the system equipment can be arranged at will in full accordance with the actual needs of the user.
The advantage of HDMI line is that even in the face of a long distance of buried wire, wiring connection, it can still ensure lossless transmission of 4k images and high-assurance audio, and HDMI HD line more than 25 meters above the specification needs to add a signal amplifier, limited length impact, can not guarantee lossless transmission of audio and video signals.
Post time: Sep-21-2022