Evaluation Foreword

As a well-known national brand in the audio and video cable industry, KAIBOER Enterprise Group has focused on the research and development of HDMI high-definition cable and related wire materials for more than ten years, and has created a series of high-end fever products such as A/L/T, which has a wide reputation in all levels of markets. Over the years, Cabol has continuously increased its capital investment and low-key research and development of audio and video solutions and technologies. Recently, we just got the finished product of the breakthrough product newly developed by Cabol - optical fiber HDMI cable version 2.0 (120m) for the actual test of 4K UHD image transmission.

Interpretation of Cabol Fiber HDMI Cable Version 2.0

Cabol's first optical fiber HDMI fiber is a long-distance lossless ultra clear transmission line specially developed for home theater users and audio and video engineering companies. It has 18Gbps bandwidth and supports 4K UHD, 10bit, bt2020 and other top-level signal transmission specifications. Different from the copper core HDMI line and silver plated copper core HDMI line that occupy the mainstream position in the current market, Cabol's new product uses optical fiber as the high-speed signal transmission medium, which can transmit 4K UHD ultra clear images and HIFI audio in a lossless way over an ultra long distance of 300 meters, perfectly solving the huge problem of signal attenuation over 10 meters of conventional wires.

Compared with traditional copper wire, Keppel fiber HDMI wire has the advantages of longer, thinner and softer, better signal quality, no radiation and electromagnetic interference; Compared with other HDMI optical fiber transmission schemes, it has the advantages of convenient use, good compatibility, stable engineering performance and no need for external power supply.

testing environment

1. Player: OPPO UDP - 205 4K UHD Blu ray machine

2. Projector: JVC DLA-Z1C native 4K UHD laser cinema projector

3. Wire material: Kebor optical fiber HDMI cable version 2.0 (120m)

4. Disc: 4K UHD disc of Batman vs. Superman

Figure: JVC DLA-Z1C native 4K UHD laser cinema projector

Picture: 4K UHD CD of Batman vs Superman

Figure: Cabol Fiber HDMI Cable Version 2.0 (120m)

Figure: Cabol fiber HDMI cable connects JVC DLA-Z1C native 4K UHD laser cinema projector

test result

This time, we used the top 4K test combination equipment in the market, 4K UHD blue light machine OPPO UDP 205 and JVC DLA-Z1 flagship laser light source projector 4K UHD projector worth 268000 yuan, to test Cabol optical fiber HDMI line, which together with Cabol optical fiber HDMI line form a complete 4K image playing system.

Open the video option in the setting menu, and set all the video output specifications to "Automatic". In terms of film source, it is recommended to use the current top 4K UHD blue light image signal Batman vs. Superman. In this case, the 4KUHD Blu ray machine will transmit the image signal in the adaptive state. First, it will detect the back-end device from the highest specification (18Gbps). If it fails, the Blu ray machine will automatically degrade the output until the image format can be presented.

Surprisingly, Keppel optical fiber HDMI cable easily passed the above rigorous tests, overcoming the problem of large signal attenuation in long-distance transmission of copper core, silver plated wire and even pure silver wire.

Resolution: 3840 * 2160

Frame rate: 60HZ

Chroma space: BT709 YCbCr4:4:4

Color depth: 8bit

**********************I'm the divider**********************

Resolution: 3840 * 2160

Frame rate: 24HZ

Chroma space: BT.2020 YCbCr4:4:4

Color depth: 12bit

HDR： open

**********************I'm the divider**********************

Resolution: 3840 * 2160

Frame rate: 60HZ

Chroma space: BT.2020 YCbCr4:2:2

Color depth: 12bit

HDR： open

**********************I'm the divider**********************

When the above method is used for testing, the data displayed on the information display page of the projector can finally determine that the Kebor optical fiber HDMI cable works under the highest specification of 18Gbps, that is, 4K resolution, 60P frame rate, 4:2:2 video compression specification, HDR10 high dynamic range, and BT2020 color gamut can transmit signals and present images normally.

At the same time, even in the ultra long transmission distance of 120 meters, Kebor fiber HDMI line has excellent transmission stability, and the problem of image pause and disappearance will not occur in the process of nearly three hours of continuous film source testing. To sum up, Keppel fiber HDMI cable has reached the official data in all indicators, and this round of test is successful. The 120 meter long distance can accomplish the signal transmission mission so well, not to mention the stable performance of the short meter size products over 10 meters in the UHD signal transmission.

With the gradual popularization of high-definition display equipment represented by 4K and 8K TV/projectors, optical fiber HDMI cable can perfectly restore the visual experience by virtue of the lossless transmission of borrowed light signals. Its advantages such as lightweight design, easy installation, long-distance lossless transmission and so on have changed various defects of copper core cable in the past. Keppel optical fiber HDMI cable has the absolute advantage of using actual data optical fiber. However, at present, optical fiber HDMI cable is still at the price level of middle and high end, which is temporarily suitable for high demand fever users and engineering users to purchase and use.

Optical fiber knowledge expansion:

Optical fiber, short for optical fiber, is a light transmission tool based on the principle of total reflection of light in the fiber made of glass or plastic. The tiny optical fiber is encapsulated in a plastic sheath, so that it can be bent without breaking. Generally, the transmitting device at one end of the optical fiber uses a light emitting diode (LED) or a laser beam to transmit the light pulse to the optical fiber, and the receiving device at the other end of the optical fiber uses a photosensitive element to detect the pulse. In daily life, because the transmission loss of light in optical fiber is much lower than that of electricity in wire, optical fiber is used for long-distance information transmission.