The EcoStruxure BMS hardware includes the Smoke Control Server, PS-24V power supply, terminal bases, and a variety of I/O modules. The Smoke Control server is the main controller in the system and is always installed with a PS-24V supply forming the minimum configuration. A selection of I/O modules is installed with the Smoke Control Server to provide inputs and outputs covering a wide variety of I/O types and capacities ranging from 8 channels up to 464 channels (29 I/O modules of the 16 channel type + one additional PS-24V).
Each device consists of a terminal base and an electronics module that plugs into the base. The electronics module has two handles, which have to be pulled out when removing the module from or inserting the module to the terminal base. In their inner position, the handles lock the module to the terminal base. This effectively prevents unintentional separation providing tolerance for vibration and jarring as required in UL 864 systems. Wiring connections are made on the terminal blocks contained on the terminal base. The terminal screws are accessible without removing the module. Power for all devices is taken from the 24 VDC rails of the backplane that is part of the terminal base.