... Frequency: 125K Interface: Wiegand26/34,ABA,G3W,CMOS-TTL Operational and Physical Characteristics ParametersDescriptionPhotoRead Range8-12cm ... Vcc(High Volts)Strap to Vcc(High Volts)Pin 4BEEPER/LED Drive2.7kHz Logic2.7kHz LogicPin ... Output Data Structure ASCII(RS232.TTL)9600,N,8,1 STX (02H)DATA(10 ASCII)CHECK SUM ... 1):Parity Start Bit, 2-13 bit EVEN Parity bitP(2):Parity Stop Bit, 14-26 bit ODD Parity ...