Rockwell Automation Publication 1715-UM001J-EN-P - December 2020 99
Chapter 2          Installation Instructions
Figure 59 - Inserted Coding Pegs for Adapter Base Unit
Verify Coding Pegs 
To verify that each coding peg, also known as a polarizing pin, is positioned 
correctly, follow these steps.
1. Review the diagram on the adapter base unit that shows the six possible 
positions for a coding peg.