Use trunk line terminators – Rockwell Automation 1786-RPCD ControlNet Modular Repeater Dual Copper Module User Manual

Page 12

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12 ControlNet Dual Copper Repeater Module

Publication 1786-IN001B-EN-P - May 2004

8. Connect the module wiring as shown in Connect the Module For Coax Channels 1

and 2 on page 14.

9. Ground your DIN rail in accordance with local codes using a minimum #14 AWG

wire. See page 12 for DIN rail ground wire example.

Use Trunk Line Terminators

When you are not connecting a trunk line to a channel on the 1786-RPCD repeater module,
connect a 75

terminating resistor (1786-XT) to maintain the integrity of your network.

If:

Then:

you are not going to use a channel

keep the terminator on an unused channel for optimal
network performance

you connect another repeater module or repeater
adapter to the right backplane connector

remove the protective backplane cap and save the
cap for future use

you are not going to connect a module to the right
backplane connector

leave the backplane cap attached

the module is in the right-most position

attach a DIN rail end anchor

31494-M

DIN rail

Terminator

Protective
backplane cap

The left side of the module
(not shown here) also
contains a backplane
connector.

Be certain to ground the DIN rail
with a minimum #14 AWG wire.

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