CEM+ "Patching"

I am working with two 48x2.4k racks.  One rack is configured in a "normal" fashion (1 to 1 off of the base address). The second rack is very unusual: EX - DMX address 86 will heat up dimmer 74, 76, 78, 82, and 84.  This happens with several DMX addresses (with different groups of dimmers among several different DMX addresses). 

The best way I can think to explain this is a patching issue in the CEM+ unit... [If DMX address 90 called control dimmer pack in slot 12b, 13a, 13b, 14a].  Hopefully this makes some sense.  I am just not familiar enough with the CEM+ modules to go and start poking around until I better understand what is happening here.

Thanks for any insights you may have.