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Talking about the functions and uses of HDMI® extenders, splitters, switches and converters

2022-01-25 18:17:11 ekL

        HDMI is the current mainstream video interface. Everyone must have seen or touched HDMI extenders, HDMI splitters, HDMI switchers, HDMI converters, etc. in conference projects, monitoring projects, data centers, control centers and daily life. God-like HDMI peripherals. So what are they used for? What kind of application scenarios is it suitable for and how to choose?

HDMI splitter

HDMI splitter

The role and use of HDMI splitter

        HDMI splitter is a device that supports more than 2 HDMI port outputs; it can distribute the input HDMI signal into multiple consistent and synchronized HDMI signal outputs. Common HDMI splitters mainly include 2-port HDMI splitters (eg: ekL-HD102, ekL-HS102, ekL-UH02, ekL-MiniHS102-B, ekL-2H, etc.), 4-port HDMI splitters (eg: ekL-HD104 , ekL-HS104, ekL-UH04, ekL-MiniHS104, etc.), 8-port HDMI splitter (eg: ekL-HD108, ekL-UH08, ekL-UH08R, ekL-MiniHS108, etc.), 16-port HDMI splitter (eg: ekL -HS161, ekL-UH161, ekL-UH08R, etc.) and 24-port HDMI splitter, etc., in terms of resolution, generally support 1920*1080p, 2K, 4K resolution

        HDMI splitter is often used in training, monitoring command center, retail, store display, remote video conference, high-speed railway station, airport terminal and other occasions where multiple display devices are often used to display the same picture.

HDMI extender

HDMI extender

The function and purpose of HDMI extender

        An 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. A certain length of CAT6 network cable or fiber optic cable is used in the middle to ensure long-distance signal transmission without attenuation. . Compared with the ultra-long HDMI cable, the HDMI extender is lower in cost and has 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 cable as the transmission medium under 200 meters, and optical fiber can be selected as the transmission medium if it exceeds 200 meters; the one that uses network cable as the transmission medium is generally called HDMI single network cable extender, and the one that uses optical fiber cable as the transmission medium Commonly known as HDMI fiber optic extender or HDMI optical transceiver. Common HDMI single network cable extenders mainly include 30m extension (eg: ekL-HA, ekL-EX01), 50m extension (eg: ekL-HE50, ekL-HA02), 60m extension (eg: ekL-HEK60, ekL -HE60), 70m extension (eg: ekL-HE70), 100m extension (eg: ekL-HE101, ekL-HE12), 120m extension (eg: ekL-HE120), 150m extension (eg: ekL-HE200) ), 200m extension (eg: ekL-HE150), etc.; HDMI fiber optic extender mainly has 20km extension (eg: ekL-HE001, ekL-HF200, ekL-HF01, ekL-HF02, etc.); average resolution There are 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 advertisements, civic centers, squares, etc. where the display needs to be placed far away from the host

HDMI switch

HDMI switch

The role and purpose of HDMI switcher

        HDMI switch is a device that transmits 1 or multiple HDMI signals to 1 or more monitors respectively; general HDMI switch supports N in 1 out, such as 2 in 1 out, 3 in 1 out, 4 in 1 out, 5 in and 1 out, 8 in and 1 out, the advanced HDMI switcher is called HDMI matrix, HDMI matrix can realize N in and N out, such as 2 in 2 out, 2 in 1 out, 4 in 4 out, 4 in In 3 out, 4 in 2 out, 4 in 1 out, etc., and can display the screen of one or more hosts on one or more monitors; compared to ordinary HDMI switchers, HDMI matrix switchers The output can be customized in use, so it is more flexible and the price is relatively expensive.

        The function of the HDMI switcher is mainly to facilitate switching between multiple HDMI hosts without having to re-plug the device every time. Manual signal switching not only takes time, but also is extremely prone to errors, and even leads to serious on-site accidents.

        HDMI switchers are often used in home theaters (such as computers, PS4/5, TVs, digital audio, set-top boxes, etc.), large screens in TV studios, concerts, weddings, shopping mall advertising and other scenarios that require frequent switching of video signal sources.

HDMI converter

HDMI converter

The role and use of HDMI converter

        HDMI converter is a conversion device that converts HDMI signals into other formats of audio and video; common HDMI converters mainly include: HDMI to VGA converter (such as: ekL-MiniHAV), HDMI to DVI converter, HDMI to DVI converter SDI converter (eg: ekL-HSD), HDMI to AV/S-Video converter (eg: ekL-HAV), HDMI audio splitter (eg: ekL-HHA), etc.

        In daily life, we often encounter that the host is HDMI interface, but the monitor is DVI interface, VGA interface or SDI interface. At this time, HDMI converter can help us solve the problem of wrong interface, and not waste of equipment resources

        HDMI converters are often used in scenarios where new and old equipment such as offices, homes, and data centers and computer rooms coexist. HDMI-related peripheral equipment will definitely be involved frequently. You only need to understand their differences and choose the corresponding equipment according to your actual needs!