GV-AS1620 is a single door controller with three types of interfaces, Wiegand, RS-485 and TCP/IP, to accommodate various readers for entry and exit management. Through its I/O pins, it provides not only basic door operations but also alarm, tamper and fire senor applications, as well as allowing LEDs connected to indicate an access granted and denied. 4 digital inputs for door contact, exit button, fire contact and tamper contact. 4 relay outputs for lock, alarm, 2 LED for an access granted and access denied. DC 12V, 3A / PoE+ (IEEE 802.3at). Suitable for door, parking lot and elevator controls. Stores up to 100,000 cards.