HDMI is the current mainstream video interface. Everyone must have seen or come into contact with a dazzling array of HDMI peripherals such as HDMI extenders, HDMI distributors, HDMI switches, and HDMI converters in conference projects, monitoring projects, data centers, control centers, and daily life.
The role and use of HDMI distributors
HDMI distributors are devices that support more than two HDMI port outputs; they can distribute the input HDMI signal into multiple consistent and synchronous HDMI signal outputs.
Common HDMI distributors mainly include 2-port HDMI distributors (such as: ekL-HD102, ekL-HS102, ekL-UH02, ekL-MiniHS102-B, ekL-2H, etc.), 4-port HDMI distributors (such as: ekL-HD104, ekL-HS104, ekL-UH04, ekL-MiniHS104, etc.), 8-port HDMI distributors (such as: ekL-HD108, ekL-UH08, ekL-UH08R, ekL- L-MiniHS108, etc.), 16-port HDMI distributor (such as: ekL-HS161, ekL-UH161, ekL-UH08R, etc.) and 24-port HDMI distributor, etc., in terms of resolution, generally support 1920*1080p, 2K, 4K resolution
HDMI distributors are often used in training, monitoring command centers, retail, store displays, remote video conferencing, high-speed railway stations, airport terminals, etc., where multiple display devices are often used to display the same picture.
The role and use of HDMI extender
HDMI extender is a device used to extend HDMI signals. It usually consists of a transmitter and a receiver. It needs to be used in pairs, and a certain length of CAT6 network cable or optical fiber cable is used in the middle to ensure long-distance transmission without attenuation of the signal. Compared with the extra-long HDMI cable, the HDMI extender is cheaper and has a low fault tolerance cost. If a single accessory in the entire transmission line is damaged, it can be replaced and replaced. It is an economical choice for long-distance transmission.
HDMI extenders can generally choose network cables as the transmission medium for less than 200 meters, and optical fibers as the transmission medium for more than 200 meters; those that use network cables as the transmission medium are generally called HDMI single network cable extenders, and those that use optical fibers as the transmission medium are generally called HDMI optical fiber extenders or HDMI optical transceivers.
Common HDMI single network cable extenders mainly include 30-meter extenders (such as: ekL-HA, ekL-EX01), 50-meter extenders (such as: ekL-HE50, ekL-HA02), 60-meter extenders (such as: ekL-HEK60, ekL-HE60), 70-meter extenders (such as: ekL-HE70), 100-meter extenders (such as: ekL-HE101, ekL-HE12), 120-meter extenders (such as: ekL-HE120), 150-meter extenders (such as: ekL-HE200), 200-meter extenders (such as: ekL-HE150), etc.; HDMI fiber extenders mainly have 20km extension (such as: ekL-HE001, ekL-HF200, ekL-HF01, ekL-HF02, etc.); in terms of resolution, there are generally 1920*1080P@60Hz, 4K*2K@30Hz, 4K*2K@60Hz, etc. to choose
HDMI extenders are often used in high-speed railway stations, airport terminals, subway stations, nuclear power plants, outdoor large-screen advertising, citi-zen centers, squares, etc., where the display needs to be placed far away from the host.
A HDMI switcher is a device that transmits one or more HDMI signals to one or more displays. Generally, ordinary HDMI switchers support N inputs and 1 outputs, such as 2 inputs and 1 outputs, 3 inputs and 1 outputs, 4 inputs and 1 outputs, 5 inputs and 1 outputs, and 8 inputs and 1 outputs. A more advanced HDMI switcher is called an HDMI matrix, which can achieve N inputs and N outputs, such as 2 inputs and 2 outputs, 2 inputs and 1 outputs, 4 inputs and 4 outputs, 4 inputs and 3 outputs, 4 inputs and 2 outputs, and 4 inputs and 1 outputs, and can display the screen of one or more hosts on one or more displays. Compared with ordinary HDMI switchers, HDMI matrix switchers can customize outputs in use, so they are more flexible and relatively expensive.
The main function of the HDMI switcher is to facilitate switching between multiple HDMI hosts without having to re-plug the device every time. Manual signal switching not only takes time, but is also prone to errors and may even lead to serious on-site accidents.
HDMI switchers are commonly used in home theaters (such as computers, PS4/5, TVs, digital audio, set-top boxes, etc.), TV studios with large screens, concerts, weddings, shopping malls and other scenes that require frequent switching of video signal sources.
The role and use of HDMI converters
HDMI converters are a type of conversion device that converts HDMI signals into other formats of audio and video; common HDMI converters include: HDMI to VGA converters (such as: ekL-MiniHAV), HDMI to DVI converters, HDMI to SDI converters (such as: ekL-HSD), HDMI to AV/S-Video converters (such as: ekL-HAV), HDMI audio separators (such as: ekL-HHA), etc.
In daily life, we often encounter a situation where the host has an HDMI interface, but the monitor has a DVI interface, VGA interface or SDI interface. At this time, the HDMI converter can help us solve the problem of incorrect interfaces without wasting device resources.
HDMI converters are often used in offices, homes, data centers, computer rooms and other scenes where new and old equipment coexist.
