RF103 1. Standalone B&W RFID Access Control 2. 30000/50000, TCP/IP,USB Host, Wiegand IN/Out ... proximity cards. It suppots advanced Access Control features, anti-pass back, can connect 3rd party E-lock, alarm, door sensor, exit button, various ... 5-10cm · Communications: RS232/485, TCP/IP· Access Control Interface: Lock, door sensor, exit button, alarm, Door Bell, Anti-pass back· Standard Functions: USB ...