• Redundant power conditioner for high availability applications

• Replace power modules without resetting the fieldbus

• High power output

• Two levels of power redundancy

• Component failure alarm

• Integrated fieldbus terminator

• Simplified power wiring

The MTL-Relcom redundant fieldbus power system (FPS-I range)

provides redundant power conditioning for fieldbus  network segments

and facilitates the connection of redundant bulk DC supplies. The system

is fully ‘hot-swappable’ meaning that individual power conditioning

modules and input power supplies can be replaced without interrupting

power or communication on the fieldbus segment. An alarm circuit

provides warning in case of a power conditioning module or input power

supply failure. The system is designed so that power for several fieldbus

segments can be provided from a single cabinet with minimal wiring.

One fieldbus segment terminator is built into each power system.

Each FPS includes two plug-in power modules. These modules function

as power conditioners, providing impedance between the input DC

power supply and the fieldbus. This impedance is necessary to prevent

the input DC power supply from degrading the digital fieldbus signal.