Rockwell Automation Allen-Bradley ControlNet 1786 Series, Руководство по установке

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Publication CNET-IN002A-EN-P - December 2001
2-20 Plan a ControlNet Coax Media System
Order Parts
What’s Next
After you gather all of the parts for your ControlNet Coax media
system, you are ready to install your network. Go to Chapter 3.
Item Cat. No. Guidelines
Quantity needed
1
Tapstraight T-tap
straight Y-tap
right angle T-tap
right angle Y-tap
see the
ControlNet Cable
System
Component List
(
publication
AG-2.2)
You need a tap for each connection to the
trunk cable (nodes and repeaters).
Each tap kit contains: two BNC connector
kits, 1 dust cap, 1 universal mounting
bracket, ControlNet cable labels and
2 screws number of repeaters x 2
+
number of nodes
repeater8 Use a repeater to:
increase the number of nodes attached
extend the allowable cable length Follow guidelines on page 7.
terminators You need a terminator for each end
of each segment.
number of segments
x 2
network access cable Use this cable to temporarily connect
programming devices (through NAPs)
to ControlNet nodes. number of programming
devices
cable connector Two cable connectors are shipped with
each tap — you need to order additional
cable connectors for each bullet and
isolated-bulkhead connector you will
be using.
2
number of bullet connectors x 2
+
number of isolated-bulkhead
connectors x 2
+
any spares
optional bullet cablebarrel
connectors
isolated-bulkhead
Use these as specified on page 10. depends on your network
requirements
right angle
extender
trunk cable
Use the ControlNet Cable System
Component List (publication AG-2.2)
to order your required length of cable.
See page 5 to select your cable
type.
Follow guidelines on page 5
to determine cable length.
tap dummy load 1786-TCAP
(quantity of 5) Use the dummy load to plug into drop
cables that are not attached to a node one for every drop cable that is
not attached to a node
Coax tool kit 1786-CTK Use the tool kit to create your create your
trunk cable to your specifications one
1
You will need to double your quantities when ordering components for a redundant cable system.
2
The connector kit may be shipped with two ferrules. The smaller diameter ferrule should not be used with ControlNet applications.