1. card, PIN, card + PIN 2. 16keys, 4 function key 3. backlight, ... card, proximity+5 bits code, 1 to 5 bits PIN number.· Users can set up threatened alarm and code by ... Embedded Linux O/S) · Aceess Mode: Card Only, PIN Only, Card+PIN · Read Range: 10-15 cm· I/O Interface: ... 10open door conbination, supports multi-users enter. TTL for connecting to lock, door sensor, exit button, alarm · LCD Panel: ...