Determining your communications configuration, Fiber optic cable installation – Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual

Page 23

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Installing and Wiring Your ControlNet Adapter Board

Publication 1336 FORCE–5.18 ––March, 1999

The CNA Board provides a single ControlNet channel with a
redundant connection available.

You can use the DIP switch U3 to configure the primary and
redundant channel node address.

Chapter 2, Starting Up, provides information for setting the
ControlNet Node Address using DIP switch U3.

If you are installing the fiber optic cable for ControlNet for the first
time, or are removing and reinstalling the cable, special note should
be taken of the following:

1. You must maintain a minimum cable bend radius of 1 inch at all

times. If it is impossible to maintain this bend radius due to
cabinet constraints, you must remove the cable strain relief to
maintain bend radius as detailed in step 2. Follow step 3 in
determining cable orientation with the strain relief removed.

2. If you are installing a new cable, it will be necessary to remove

the strain relief/latching cover (as shown in the following figure)
before attempting to plug the cable into the ControlNet board.
The cover can be removed by squeezing the two latches inward
and lifting the upper half off from the cable end (bottom) of the
cover assembly.

Fiber Optic Connectors

Strain Relief/Cover

Latches

Incoming Fiber Optic Cables

3. When installing (or reinstalling) the loose fiber optic cables, it

will be necessary to determine the correct orientation of the cable
connectors to establish ControlNet communication. The blue
connector must be plugged into the dark grey connection on the
board. The black connector plugs into the light grey connection
on the board. The cable with the black connector is the transmit
cable (TX) and the cable with the blue connector is the receive
(RX) cable. Reset the drive and the ControlNet system should be
ready to operate.

Determining Your
Communications
Configuration

"

Fiber Optic Cable
Installation

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