... 5,000 cards, 8,000 records Access controller:TCP/IP and RS485 signal/dual/four doors controller:DescriptionMaster card setting function provided ·Large ... ·Input interface: 2 ·Input device: 6 sensors (2 for push-button, 2 for door, 2 forcase) ·Output device: 4 relays (2 for door, 2 for alarm ... interface: RS-485 ·Operating voltage: 12VDC, 200mA ·Power consumption: 2.5W maximum Access controller