The F80x module provides galvanicisolation between the 24V DC input power

and the fieldbus segments, as required by the IEC61158-2 fieldbus standard

and the Fieldbus Foundation™ FF-831 validation test for fieldbus power

supplies. There is also galvanic isolation between the fieldbus segments,

thereby preventing multiple segment failures due to ground faults on more

than one segment.

Each segment has its own fieldbus power conditioner and current limitation.

Redundant 24V DC (nom.) input power is connected to the F880 carrier using

two part pluggable connectors. Field wiring connections are available with either

pluggable screw terminals (F880-xS) or pluggable spring clamp terminals

(F880-xC).

Three variants of carriers are available in the F880 family. The F880-CA-Px carrier

provides terminal numbering and consistent connector polarity.

Where two columns of F880-CA-Px are installed in a cabinet the carrier is rotated

by 180 degrees for installation in the second column. Alternatively, if there is a

requirement for cabinet wiring to be symmetrical, there are lefthand (F880-CL-Px)

and righthand (F880 CR-Px) versions.