Abstract: In a BACnet Internetwork, a modular concept is implemented to permit interchangeable protocol conversion between a host protocol like logic-level BACnet MS/TP and another protocol or function by providing pluggable communications modules that avoid tedious software configuration.

Abstract: In a BACnet Internetwork, a BACnet Router is configured to improve communications between BACnet devices by caching the addresses and data parts of messages sent between the devices, for diagnostic purposes, to avoid duplication of information, perform proxy functionality and address duplicate device and Network address information.

Abstract: A cell site environmental control system includes multiple relays, each monitoring a specific device whose status may have an impact on the environmental condition at the cell site. The cell site environmental control system includes a microprocessor-based central control module that issues environmental control instructions upon receipt of monitoring signals from the monitoring relays. The monitoring signals are captured at a punch-down block that has connections to the monitoring relays and routed from the punch-down block to the central control module.