INTRODUCTION:This module comes with EM18 Reader Module attached on the Board. It provides TTL and RS232 interfaces for the RFID module. The detected tag data can be read over DB9 connector (RS-232) or the RMC pins (TTL Serial out or Wiegand 26 out, as per selection). The board can be connected to the serial port of a PC over the DB9 connector, allowing the Windows applications to communicate with the Reader module via the allocated COM port. It can also be used as an embedded board in application circuits of access control systems and all for in-circuit evaluation. It is completely “ready-to-use” device.RFID READER MODULE BOARD:Board contains power supply with voltage regulator 7805 to convert 12 V DC supply to 5V DC. It has buzzer and LED to indicate detection of RFID tag. One of the LED indicates that the module is successfully powered up and the other one indicates the presence of RFID tag near the reader. Power On switch is provided on board.