Splicing Screen Advertising Machine

Description of LED Video Wall Interface Functions
LED video walls are equipped with various interfaces to meet different device connection and signal transmission needs, ensuring stable and efficient screen operation. Below are common interfaces and their main functions:

1. HDMI Interface

The HDMI interface is the most commonly used video signal input for modern LED video walls, supporting high-definition digital audio and video transmission for clear and smooth images. It allows direct connection to computers, media players, cameras, and other multimedia devices.

2. DVI Interface

The DVI interface mainly transmits digital video signals. Although gradually replaced by HDMI, it remains widely used in some older devices and professional display systems. It offers stable image output and is suitable for scenarios requiring high color accuracy and resolution.

3. VGA Interface

The VGA interface is an analog signal interface with strong compatibility, suitable for connecting traditional computers and projectors. Despite its lower resolution, it is still valuable in certain situations, especially when used with legacy equipment.

4. Network Interface (RJ45)

The network interface is used for control and data transmission of the video wall via wired LAN connections, enabling remote management, content updates, and synchronized playback. Most LED video walls support Ethernet control, facilitating cluster management and backend monitoring.

5. USB Interface

USB ports connect USB drives or other storage devices, allowing direct playback of videos, images, and other multimedia files on the video wall itself. USB interfaces also support system upgrades and external device expansion.

6. Audio Interface (3.5mm)

Audio interfaces handle input or output of sound signals, supporting external speakers or microphones, meeting audio requirements for multimedia playback and conference scenarios.

7. Power Interface

A stable power interface is fundamental to ensuring long-term efficient operation of the LED video wall, typically equipped with a standard power socket supporting 220V AC input.

8. Control Interfaces (TTL/RS232/RS485 Serial Ports)

These interfaces enable communication with control systems, sensors, or peripherals for screen parameter adjustment, status monitoring, and automated control. Multiple serial port options provide flexible connectivity to meet complex industrial and commercial applications.