Red: Power 5-16V

Black: Power ground

Green: Wiegand output D0

White: Wiegand output D1

Brown: Green LED control

Blue: Buzzer control

Yellow: Hold

LED/Buzzer function description      

LED function: The LED color is normally in RED. It starts with 2 green flashes on power up the reader and remains RED. When a RFID proximity card is present to the reader, The LED will momentary flash green,this indicates that the card was read properly by the reader. When the LED control signal is active, the LED changes to green.

Beeper Function: Power up the reader, the beeper will active 2 times. When a RFID proximity card is present to the reader, a short beep will be emitter. This indicates that the card was read properly by the reader. When the Buzzer control signal is active, the buzzer will sound till buzzer control line is released

Hold function: when this line is asserted,(made low by HOST) the reader will buffer one card read (ignoring subsequent reads) until the line is released.(made high or open)