The DPU1012NT is an access controller that can support up to 8 cards and 500 temporary cards with security settings. It has 15 time zones per door, 24 sets of flow control between doors, and supports events, online polling, TCP communication at 100Mbps, boss and manager cards, and a 10,000 card holder database. It uses an ARM Cortex-M3 processor, has communication options of TCP/IP and RS485, and inputs/outputs including card readers, relays, buttons and sensors. It is housed in a metal enclosure and works with the Sphinx4 access control software.