Self-service Touch Screen Machine

Interfaces and Connection Methods of Vertical Advertising Display

The vertical advertising display with AUO OLED panel developed by Guangzhou Ruiguan Electronic Equipment Co., Ltd. is equipped with abundant interface options, providing users with flexible and diverse connection solutions. With its complete interface design and stable signal transmission performance, the device can meet complex requirements in various commercial application scenarios.

For video input interfaces, the advertising display features three HDMI 1.3 ports supporting full HD signal input from 480i to 1080P. The HDMI ports adopt standard Type A 19-pin design, supporting up to 4K resolution transmission while being compatible with Audio Return Channel (ARC) function. Each HDMI interface undergoes rigorous signal integrity testing to ensure no signal attenuation within 5-meter transmission distance. The device also retains a 15-pin D-SUB VGA port supporting multiple display modes from DOS to WUXGA, with horizontal frequency 30-80KHz and vertical frequency 56-75Hz, meeting connection requirements of traditional devices. The VGA port uses gold-plating process to prevent oxidation and ensure long-term stability.

For audio connections, the device provides multiple flexible solutions. Besides the audio transmission function through HDMI, it also has dedicated PC audio input and AV audio input ports. The 3.5mm stereo earphone jack can connect external monitoring devices, while the dual 3W stereo speaker system with 8Ω impedance design offers a frequency response range of 80Hz-20KHz, delivering clear and full sound effects. The audio circuit adopts professional operational amplifier chips with signal-to-noise ratio over 90dB, ensuring pure sound without background noise.

Network connection is one of the highlights of this advertising display. The RJ45 Ethernet port supports 10/100M auto-negotiation, with built-in hardware network protocol stack enabling remote content updates and device management. Through dedicated CMS system, users can centrally control multiple devices simultaneously. The COAX interface supports DVB-T2/S2 digital TV signal reception, and with the built-in demodulation chip, can directly play digital TV programs.

For power design, the advertising display adopts wide voltage input (AC 90-220V, 50-60Hz) with built-in high-efficiency switching power module achieving over 90% conversion efficiency. The DC12V power input uses 4P*2.0 red pin socket design with reverse connection protection function. The power management system supports low-power mode and standby mode, with standby power consumption controlled below 0.5W, complying with the latest energy efficiency standards.

The USB ports adopt horizontal design with two USB 2.0 Host interfaces supporting hot-plug and plug-and-play. The ports have built-in overcurrent protection circuit with maximum output current of 1A per port, meeting power supply requirements of most external devices. The file system supports FAT32/NTFS/exFAT formats with maximum 2TB storage device compatibility, working with various USB drives and mobile hard disks.

The LVDS screen interface uses 2*15PIN 2.0mm pitch design supporting dual-channel transmission, ensuring no delay for 1920×1080 resolution images. The interface adopts double locking mechanism to prevent loosening during transportation. The signal transmission lines use differential pair design to effectively suppress electromagnetic interference and ensure image purity.

The AV input/output ports adopt composite video signal design supporting PAL/NTSC auto-identification. The two AV input channels can connect surveillance cameras and other devices, facilitating simple monitoring system setup. The AV output port can cascade multiple devices to expand display range.

For control interfaces, the device supports RS-232 serial port control, enabling remote power on/off, volume adjustment and other functions through standard AT command set. The front panel buttons use high-quality micro switches with lifespan over 100,000 times, providing basic operations like power, menu, and volume adjustment.

The overall interface layout is carefully designed with all ports concentrated in the back recess, ensuring both connection convenience and neat appearance. Each interface has clear labeling and comes with dust-proof cover to prolong service life.