Knowledge: What is the difference between an optical HDMI cable and an ordinary HDMI cable?
At present, the HDMI interface has become the most common and mainstream high-definition video transmission interface. In the high-definition era, almost most people know the HDMI interface. The main material of the traditional HDMI cable is oxygen-free copper, but the signal will be changed during long-distance transmission. influence. In the continuous change of HDMI cable transmission carrier, the HDMI high-definition cable with optical fiber as the carrier suddenly became popular, especially after the release of the HDMI2.1 standard, the optical fiber HDMI cable has been hot, so the optical fiber HDMI cable should be used and live.
The HDMI cables on the market are divided into optical HDMI cables and ordinary HDMI cables. So do you know the difference between the two and how to choose in different usage scenarios? Let's take a look together~
Optical fiber HDMI cables use optical fiber cores, which are generally made of glass optical fibers and plastic optical fibers. Compared with the two materials, the loss of glass fiber is smaller, but the cost of plastic fiber is lower. In order to ensure the performance, it is generally recommended to use plastic optical fibers for distances below 50 meters, and glass optical fibers for distances above 50 meters. The ordinary HDMI cable uses copper core wire, and of course there are upgraded versions such as silver-plated copper and pure silver wire. Different materials determine the huge difference between optical HDMI cables and conventional HDMI cables in their respective fields. For example, fiber optic wires will be very thin, light, and soft; while conventional copper core wires will be thick, heavy, and hard.
In long-distance transmission, the advantages of optical fiber HDMI are very obvious. Optical HDMI adopts optical fiber transmission medium, which is not affected by electromagnetic interference, and the transmission attenuation is basically negligible. It can support more than 150 meters of lossless transmission signals, breaking the length limit, and no signal amplifier. Ideal for gaming and demanding industries.
The price of traditional HDMI copper core wire is cheaper and more cost-effective. Because the optical fiber HDMI cable is a new thing, the industry scale and user group are relatively small. As a result, the optical fiber HDMI cable has a small scale, so the price is still high, which is generally several times more expensive than the copper core HDMI cable. Therefore, the current conventional copper core HDMI cable is still irreplaceable in terms of cost performance.
The optical HDMI cable has reached the HDMI2.0 standard and can directly transmit 4K 60FPS ultra-clear signals without being affected by distance. It can be used in various occasions that need to output high-definition image display equipment and large-area wiring connections. The application field can be described as very wide. , such as: home theater system, remote information release system, radio and television control system, public security high-definition monitoring system, high-definition video conference office system, multimedia system, large-scale medical imaging system, industrial automation system, etc.
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