Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 171)

1 Publication 1797-6.5.6 - June 2005
Chapter
37
1797-BCNR Redundant ControlNet Ex Barrier
Description The ControlNet Ex barrier type 1797-BCNR functions as a galvanic isolation
barrier for signal between the non-intrinsic ControlNet system an
intrinsically-safe ControlNet Ex system. The 1797-BCNR is installed in the
safe area.
Inputs/Outputs Do not apply any non-intrinsically safe signals to the intrinsically-safe side of
the 1797-BCNR.
The BNC covers are provided with a cover plug. This cover plug can only be
removed when a cable is connected. The IS connection must not be connected
to any signals that exceed the intrinsically-safe values of the ControlNet Ex
system.
1797-BCNR
Redundant Coax
Media Barrier
41267a
1797-BCNR