Rockwell Automation 1797-TCAP ControlNet Ex Tap Dummy Load Installation - Manual (Page 3)

ControlNet Ex Tap Terminator Installation Instructions 3
1797-5.30 - September 1999
Describing the ControlNet Ex System Diagram
A maximum of 48 ControlNet Ex TM nodes may be connected together by
820ft (250m) of coax cable and 48 taps. The distance to increases to 3280ft
(1000m) when you use only 2 taps. See the table below for more
information.
The fiber media of the 1797-RPFM can be installed in a hazardous location
(Zone 0, 1 or 2; Class I, Zones 0, 1, and 2; Class I, Division 1 and 2; Class
II, Division 1 and 2; Class III, Division 1 and 2) to connect two
1797-RPFM modules or they can be installed through different locations
into the non-hazardous location to connect the 1797-RPFM with any
approved associated apparatus.
All cables and fiber media that are not light blue must be marked as IS
using the 1797-EXMK marking kit or other locally approved IS
identification and/or segregation method.
During the installation of the ControlNet Ex system, all metallic parts must
be isolated to prevent an earth connection (high voltage withstanding of
isolating material must be > 500V ac).
System
Diagram Name Catalog
Number Catalog Name Description
1797-RPA 1797-RPA ControlNet Ex
Modular Repeater
Adapter Represents one ControlNet Ex
node and must be connected
to a coax trunk cable by
1797-TPx
1797-RPFM 1797-RPFM ControlNet Ex Fiber
Repeater Module,
Medium Distance Allows connection of a
maximum of two devices per
1797-RPA and is powered
directly by 1797-RPA
1797-ACNR15 1797-ACNR15 Redundant Media
ControlNet Ex
Adapter Represents one ControlNet Ex
node and must be connected
to a coax trunk cable by
1797-TPx -each one with two
redundant output channels
that are connected to different
ControlNet Ex networks (coax
cables and 1797-TPx)
CNet Ex Tap Trm 1797-TCAP ControlNet Ex Tap
(Dummy) Terminator Represents one ControlNet Ex
node and is a simple
capacitor (56pF) with a coax
connector