BOSCH PRS-FIN Fiber interface

BOSCH PRS-FIN Fiber interface

Most of the Praesideo system units have come along with plastic fiber optic interfaces. Plastic fiber is designed for used in interconnecting nodes which are less than 50 meters apart. For distances of more than 50 meters, glass fiber optic cable is used. A fiber interface is capable of converting from plastic to glass fiber and vice versa. The fiber interfaces have a power supply input that's capable of providing power to remote network sections and two control inputs. The control inputs are capable to pass on supervision information about the power supply connected to the fiber interface.

Functions
These units interface glass fiber optical cable comes along with plastic fiber optical cable and are supporting redundant wiring topology. In many applications this is necessary, because glass fiber are possible to bridge much longer distances than plastic fiber. Any conversion to glass fiber must be converted back to plastic fiber before other Praesideo units are possible to be attached, since they all have plastic fiber interfaces. This means that these units are always used in pairs.

Each interface are capable to use for an external 48 VDC power supply capable of providing power for itself, as well as for remote parts of the network. If there is no external power source, the interface comes using power from the network controller. The PRS-FIN and PRS-FINS come along with two control inputs. These are capable to be used for accepting e.g. the fault output of the external power supply (UPS), allowing the units for monitoring the power supply and report faults to the network controller. The fiber interfaces have two LEDs for diagnostic purposes.

Controls and indicators
Power status LED
• Network status LED

Interconnections
• Network connection for plastic optical fiber
• Network connection for glass optical fiber
• External power supply input
• Two control inputs

Features

• Redundant network connection
• Indicators for power and fault status
• Two supervised control inputs
• Can use a local power supply

Electrical