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The AADvance Safety Controller
Chapter 2
Module Polarization Keying
For each I/O Module there is a matched termination assembly. The controller
incorporates module polarization keying to make sure that they are correctly
mated when installed. Sockets on the rear end plate align and mate with coding
pins found on the termination assembly. The alignment of the sockets and pins
make sure that only the matched I/O modules and termination assemblies can
be mated.
Figure 3 - Coding Sockets
Rockwell Automation Publication ICSTT-RM448J-EN-P - April 2018
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