The 7798 I/SITE LAN is a standalone unit that uses the MicroRegulatorTM (MR) and Security Control Unit (SCU) controllers to provide building management services targeted at the requirements of managing smaller buildings or buildings in remote locations. The 7798 I/SITE LAN allows the operator or building manager to control the building through a ViewCon, a local host PC connection, a modem to a remote PC or an optional TAC Controller LAN network. When connected to a TAC I/NETTM host PC via modem, direct connection or optional controller LAN network, the I/SITE LAN becomes an interface between the MR and DPU sub-controllers and a larger TAC I/NET Distributed Control System. The I/SITETM LAN supports up to eight telephone numbers for use with the AA/AD modem function.The I/SITE LAN provides global functions for the MRs and DPUs. These global functions include: Access Initiated Control, Anti-Passback, Demand Control, Event Initiated Control, Trending, and Runtime.