|LED screen control system > Synchronous control
Internet cable transmission 100m. Multi-mode fiber optics transmission 500m; Single-mode optic fiber transmission 10km.
Synchronous LED display is mostly used for videos, graphics, text and announcements, which is always indoor or outdoor and in big sizes.
Synchronous LED Display equals to computer monitor, it shows point-to-point and in real time with computer monitor at a frame rate over 60 per second. It is able to display high gray scale colors, suitable for media and adverting.
It has Features of instantantly and rich expression. One complete synchronous system includes sending card, receiving card, and DVI graphic card.
Asynchronous LED display system is also called offline LED system. Asynchronous display is mainly used to play text message, symbols, graphics and animations. Display content is edited by computer, transmitted by RS232/458 and saved in memo of LED control card. Then play programs one by one and in a loop. It is rich, colorful and various. It has simple operation and wide range of applications. Ordinary asynchronous LED display is only used for digit clock, text, and special symbols. Image-text asynchronous LED display supports analog-clock, courting-down, Images, tables and animations.
The solution for mono color screen asynchronous control system.RF transmission distance within 100m(barrier-free).
remark: only applied to monocolor led display
RF wireless control card has embedded short-distance radio frequency modules into LED control card; it is stable and easy use and will lead the development of short distance RF technology equipped LED displays. It can transmit data to LED display without any wires.
Monocolor LED display.
Transmission distance ≤100meters
only applied to monocolor led display
GPRS control card makes the GPRS based serial port data transmission possible.
It is user-friendly, stable and reliable; fully support DDNS (Dynamic Domain name server).
GPRS control LED display is widely used as outdoor advertising displays, LED lintel display, LED info-broadcast display, bus stop LED display.
Data wireless transmission
Support GPRS and text message.
Support TCP/IP, UDP.
Support-multi-baud rate (Default 57600bit/s)
International standard specification:
support GSM,(frequency range 850MHz 900MHz 1800MHz 1900MHz)
The solution for Asynchronous control system. the wireless transmission distance within 1KM(barrier-free).
Wireless antennas control method can be applicated to every pitches LED screen. Transmit signals in 1km area
through wireless antennas, including video, pictures, messages, etc, avoid the trouble to arrange signal transmission
1. transmit high quality stable signals from computer to LED screen control card.
2. fast transmission speed.