DC8s can have letters A, B, C or D numbered 1-8 or 9-16. DC4s can have letters A, B, C or D numbered 1-4, 5-8, 9-12 or 13-16. The Lunar Sim; A, B, C or D numbered 1, 2, 3 or 4 and the AquaSurf E, F, G or H, numbered 1-4.
Each device includes 1 letter + a number; this goes into the 'timer' section of the AC program.
I just mixed things up in case I want to add a device in between my other addresses.
No reason, just the way I did it.
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