The AC5102 advanced central controller can be programmed with up to 500�000 cardholders and up to 96 doors. It has been specially designed for maximum flexibility� and provides six separate field level network (FLN) channels. Each FLN is capable of hosting up to 16 local devices for access control� monitoring input devices or controlling output devices. The AC5102 also has a diagnostic port that provides a direct connection to its micro-processor to facilitate the download of operating instructions (firmware). Firmware updates can be made without having to visit the controller cabinets. Communication to the host system occurs via a 10/100Mb Ethernet connection. This allows communications over any WAN or LAN where devices on the network can be assigned a unique IP address. This type of communication ensures the fastest possible transaction times between the host system and AC5102 field panels. The AC5102 hosts a tamper input that can be used to detect if the cabinet in which it has been mounted has been opened. It also provides an alarm output that can operate a visual or audio alarm when security has been breached.