... through RS232, RS485 or TCP/IP, SC103 could be managed the system by PC.SC103 Series are certificated ... circuit protection, illegal-dismantle alarm & professional alarm system, voltage control & compliable surveillance system. Technical Specification ·card Capacity: 30,000 · ... Read Range: 5-10cm · Communications: RS232/485, TCP/IP· Access Control Interface: Lock, door sensor, exit button, alarm, Door ...