The MS/TP communications bus is a local or remote network that connects supervisory controllers and equipment controllers to point interfaces using BACnet MS/TP protocol. The remote network, called the Remote Field Bus, requires the addition of a BACnet/IP to BACnet MS/TP Router. The MS/TP bus consists of two types of buses: the FC Bus and the SA Bus. Each bus has its own set of device addresses. For details on how to apply the local and remote MS/TP bus, refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034) .