Rockwell Automation 1786-series ControlNet Fiber Media Planning and Installation Guide - Manual (Page 62)

62 Rockwell Automation Publication CNET-IN001C-EN-P - October 2011
Appendix A Install Your Fiber Repeater Modules and Repeater Adapters
5. If applicable, slide the module to the left to mate with the repeater adapter
or another repeater module.
You can attach a maximum of four modules to the repeater adapter or
attach the number of modules whose total power consumption does not
exceed 1.6 A @ 5V DC, whichever occurs first.
Install the Ferrites
A ferrite is connected to the relay contact connector on the 1786-RPFRL/B and
1786-RPFRXL/B modules. A relay contact connector helps identify a faulted
module in your system.
Do these steps to attach the ferrite to the power supply of the
1786-RPA/B repeater adapter module.
1. Obtain 0.25…2.5 mm
2
(22…14 AWG) wire in a length sufficient for
your application.
ATTENTION: Do not discard the end cap. Use this end cap to
cover the exposed interconnections on the last module on the DIN
rail. Failure to do so could result in equipment damage.
IMPORTANT Make certain that you secure the repeater adapter and repeater
modules with DIN-rail anchors. If you do not, loss of
communication or module damage may result.
TIP If you are not planning to use the relay contact connector on the module
for system status, you do not need to install the ferrites.
TIP You may want to choose a smaller wire gauge (for example,
0.25…0.823 mm
2
(22…18 AWG) ) with sufficient size and rating
to handle amperage requirements of the power supply to aid in
installation of the ferrite.
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