Multi protocol peripheral keypad EM 4002/4100 and HID (125 kHz) reading type User capacity: 1000 Cards/PIN codes Entry mode: codes/ cards/ codes or cards/ codes and cards Resin Potted Electronics RS485 interface: for connecting I/O boards like RB0408, RTT,RU2, DINRTT Firmware upgrade: via RS485 converter Security: 30 seconds lockout after 8 consecutive invalid PIN codes or cards