Application

WS-900LCM modules is a success product in the wireless industry. It can bring revolutionary changes for traditional industries which spent lots of human cost. Through this product, you can not subject to space constraints, just need to show the subtitles to convey to the other side, you can dispense with the wiring of the mission or annoyance. This products are two-way transmission modules, totally are three applications for your best choice: cable transmission, wireless transmitter, wireless transceiver and etc. The details are as below:

• Cable Transmission
  WS-900LCM USB or RS232 line access to a computer´s USB or RS232 ports, it can communicate directed by, and it will display the message which you want to show on the WS-900LCM.
• Transmitter
  connect transmitted side of WS-900LCM to your computer´s USB or RS232 port, the computer will be under the command by wireless transmission means to convey to the other side of the WS-900LCM.
• Transceiver
  connect the receiver side of WS-900LCM will receive termination to your computer´s USB or 12V DC power supply, you can receive the directive from WS-900LCM on computer side.

Specification

• Frequency : 902 ~ 925MHz(FCC); 863 ~ 865MHz(CE)
• Output Power : 10dBm
• Receive Sensitivity : -112dBm(9.6Kbps)
• Transfer Rate : 9.6Kbps ~ 500Kbps
• Transfer Model : FSK
• Storage Temperature : -50℃ ~ +95℃
• Operation Temperature : -10℃ ~ +70℃
• Operation Voltage : USB Power = 5V,External DC Adapter = 9V

Block Diagram

Operation of Computer

There are three control ways for WS-900LCM. It can through switched to select the required mode of operation :

• 1. Wired mode
  Under this mode, please connect USB to WS-900LCM and it can change the display on the screen through USB.
• 2. Wired host mode (Transmitter)
  Under this mode, please connect USB to WS-900LCM. It will send the data to WS-900LCM(transmitter) and the data will be sent to transceiver module through Wireless Function of WS-900LCM and display on the screen of transceiver module.
• 3. Wireless host mode (Transceiver)
  Under this mode, just need to imply providing external 5V power or through the built-in rechargeable battery and it can work anytime, and receive the data from WS-900LCM and change the content of the text on the screen immediately.

Scope of application

• Shops in large shopping malls and large-scale product price control display system
• Transmission equipment for wireless data display
• Third screen for cash register
• Wireless transmission facilities prices showed for amusement park
• Wireless transmission seat brand-name recognition for any meeting of occasion
• Guidepost and shop signs display
• Wireless scoreboard