KT-400 is an Ethernet-ready four-door controller that provides 128-bit AES encrypted communication with the EntraPass system and is a highly secure solution for any security-conscious business. KT-400 can easily be integrated into an existing EntraPass system with other Kantech controllers (KT-100 and KT-300) or can provide the foundation for a brand new security installation. With an onboard Ethernet port, an external IP device is no longer required to connect to the network. The onboard port is dual-sensing, which means the system senses whether the connection is 10Base-T or 100Base-T, and adjusts automatically for faster connectivity. KT-400 manages network polling and communicates with the EntraPass Gateway only when an event has occurred. Communication integrity is ensured through a heartbeat signal which is sent at regular intervals to the EntraPass system. This asynchronous communication significantly reduces the amount of bandwidth required to manage the access control system over the network.