What Is a Video Splitter?

A video distributor is a device that evenly distributes a video signal source into multiple video signals. Its working principle is to realize the function of one video input and multiple video output, so that it can observe the video output without distortion or loss of definition.

Video splitter

A video distributor is a device that evenly distributes a video signal source into multiple video signals. Its working principle is to realize the function of one video input and multiple video output, so that it can observe the video output without distortion or loss of definition.

Generally, in addition to providing multiple independent video outputs, the video distributor also has the function of video signal amplification, so it also becomes a video distribution amplifier.

Chinese name

Video splitter

Category

machine

Object

All the way

The video distributor is to realize the function of one video input and multiple video output, so that it can observe the video output without distortion or loss of definition. In addition to providing multiple independent video outputs, video distributors also have the function of video signal amplification, so they also become video distribution.

1. According to different application fields, it can be divided into: conference video distributor and security video distributor

2. According to the input and output channels, it can be divided into: single video distributor and multiple video distributors

Channel differentiation

JC-0104V 1 in 4 out

JC-0108V 1 in 8 out

JC-0116V 1 in 16 out

JC-0124V 1 in 24 out

JC-0132V 1 in 32 out

JC-2G0104V 2 groups of 1 in and 4 out

JC-4G0102V 4 groups of 1 in and 2 out

JC-4G0103V 4 groups of 1 in and 3 out

JC-4G0104V 4 groups of 1 in and 4 out

JC-8G0102V 8 groups of 1 in and 2 out

JC-8G0103V 8 groups of 1 in and 3 out

JC-8G0104V 8 groups of 1 in and 4 out

JC-16G0102V 16 groups of 1 in and 2 out

JC-16G0103V 16 groups of 1 in and 3 out

JC-16G0104V 16 groups of 1 in and 4 out

Distributors are the most commonly used components in the distribution network of cable television transmission systems and are used to distribute signals. Its function is to divide an input signal equally into several outputs, usually two distributions, three distributions, four distributions, six distributions and so on. The frequency of cable television networks is constantly increasing, and the functions are constantly being strengthened, so the requirements for distributors are constantly increasing. Main technical requirements of distributor. Frequency range: The distributor is used in the entire cable television network, so it should have broadband frequency characteristics; Input and output impedance: The impedance of various RF interfaces in the cable television network should be 75 ohms to achieve impedance matching, so the input of the distributor The impedance of the terminal and the output should be 75 ohms; Distribution loss: In the system, it is always desirable to connect the distributor with as little loss as possible. The amount of distribution loss Ls is related to the number of distribution paths n. In the ideal case, Ls = 10lgn, when n = 2, the distribution loss of the two distributors is 3dB. In fact, in addition to the loss of the equal signal, there is also a part that is due to the tensile attenuation of the distribution device itself, so it is always larger than the calculated value. For example, the distribution loss of the two distributors usually takes 3.5dB, and the loss of the 4 distributors often takes 8dB. Isolation from each other: Isolation from each other is also called distribution isolation. If a signal is added to one output end of the distributor, the difference between the signal level and the signal level of other output ends is isolated from each other. Generally, the isolation of the output end of the distributor is greater than 20dB. If the standing wave ratio is too large, the transmission signal will be reflected at the input or output of the distributor, which will adversely affect the image quality, such as ghosting. Distributors are also divided into over-type distributors, outdoor-type distributors, and indoor-type distributors in the project.

A distributor on an interface device is a control device that distributes audio and video signals to multiple display devices or projection display systems. It is a device in the form of an interface that specifically distributes signals. The distributor has a significant feature that it can extend the high-definition AV signal to about 200 meters through a common coaxial cable, which can completely solve the problem caused by multiple types and quantities of display equipment due to one signal source in the project. problem.

When the user uses it, first lead the signal to the INPUT of the distributor through a standard high-quality cable. There are two or four or more output ports on the distributor, which can be connected to the local display, and the other can be connected. To the remote display device, by adjusting the brightness and contrast on the distributor, the image clarity of the remote display device can be adjusted to the same effect as the local one. After adjustment, the image quality of the remote display device will be qualitatively improved, and the distributor can eliminate tailing and ghosting to the greatest extent, which can completely meet the requirements of high-quality image quality of various key projects in China.

Video capture card is the most commonly used device in the video industry. According to different needs of users, different types of video capture cards are introduced. Some can capture multiple signal sources at the same time, and some video capture cards can output multiple video sources at the same time. However, some users need to transfer to multiple computers at the same time when capturing, which requires the use of a video distributor.