Rockwell Automation Allen-Bradley ControlNet 1786 Series, Installation Instructions Manual

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Publication CNET-IN002A-EN-P - December 2001
Plan a ControlNet Coax Media System 2-5
You should install all wiring for your ControlNet cable system in
accordance with the regulations contained in the National Electric
Code (or applicable country codes), state codes, and applicable
municipal codes.
Determine Trunk Cable
Section Lengths
A segment is comprised of several sections of trunk cable separated
by taps. The total cable length of a segment is equal to the sum of all
of the trunk-cable sections.
Select the shortest path for routing the cable to minimize the amount
of cable you need. The specific details of planning such a cable route
depends upon the needs of your network.
For: Use this cable
type:
1
light industrial applications Standard-PVC
CM-CL2
heavy industrial applications Lay-on Armoured
and Interlocking
Armour
high and low temperature applications, as well as
corrosive areas (harsh chemicals) Plenum-FEP
CMP-CL2P
festooning or flexing applications High Flex
moisture resistant applications; direct burial, with
flooding compound, fungus resistant Flood Burial
1
See the ControlNet Cable Systems Component List (publication AG-2.2) for information on
suppliers and part numbers.
terminator terminator
trunk-cable section
trunk-cable section
tap tap tap
30094-m
IMPORTANT
When determining the cable length of trunk-cable
sections, make sure you measure the actual cable
path as it is routed in your network. Consider vertical
dimensions as well as horizontal dimensions. You
should always calculate the three-dimensional
routing path distance when determining cable
lengths.