Smart card reader

Description ： ¯ Power requirements:o235EM:9-12VDC at 100mA o238MF:7-12VDC at 100mA olinear regulator is recommended ¯ Read range: o235EM: safety read range for 7cm with standard EM H4100 card o238MF: safety read range for 4cm with Philips Mifare 1 contactless smart card ¯ Frequency:o235EM: 125k Hz standard o238MF: 13.56k Hz standard ¯ Operating temperature: -22 to 150 degrees Fahrenheit （ -30 to 65 degrees Celsius ） ¯ Operating humidity: 0% to 95% relative humidity non-condensing ¯ Audio/visual indication: green, red, yellow LED bar and buzzer ¯ Response time: less than 0.1 second ¯ ISO standard:o238MF: ISO14443 type A compatible ¯ Cable distance:o Wiegand interface: 500 fee （ 150m ） oRS232 interface: 50 feet （ 15m ） o Recommended cable is ALPHA 1295 22 AWG ） 5 conductor minimum stranded with overall shield or equivalent o Additional conductors may be required for LED or beeper control