Rockwell-automation 1786-RPFRXL ControlNet Fiber Ring Modules Installa User Manual download pdf (Page 26)

26 ControlNet Fiber-optic Ring Repeater Modules

Rockwell Automation Publication 1786-IN003D-EN-P - April 2011

Connect the Cable

This section describes how to connect cables by using the tracer on the cable to

identify and follow the cable throughout your system.

A tracer is one of the two wires on the duplex cable that is one of

the following:

• Printed with the cable legend

• Ribbed

For further information on choosing cables and wiring your system, refer

to the ControlNet Fiber Media Planning and Installation Guide,

publication CNET-IN001

The instructions explain how to connect the cable between the fiber modules by

making a simple ‘criss-cross’ connection. To do this, you will connect the cables

between modules from the receive (RX) end of one channel to the transmit

(TX) end of the other module, as shown in the following diagram.

Do these steps to connect the cable.

1. Use the tracers on the cable to identify which cable is connected to the

receive (RX) port and which one to the transmit port (TX).

TIP

Channels 1 and 2 on the module are identical. Channel 1 of a

module can be connected to either channel of another module.

TXRX

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Rockwell-automation 1786-RPFRXL ControlNet Fiber Ring Modules Installa User Manual Page 26