Rockwell Automation 1756-CN2R ControlLogix ControlNet Interface Module Series A Installation Instructions - Manual (Page 14)

14 ControlLogix ControlNet Bridge Module
Publication 1756-IN602A-EN-P - November 2005
3. Apply power to the module and check module status.
IMPORTANT
To prevent inadvertent reversal of the tap connections
(resulting in incorrect status displays requiring
troubleshooting), check the tap drop cable for the label
indicating the attached segment before making your
connection.
Tap
Segment 1
Segment 2
Tap Tap
A
A
B