@Pingman, yes it did, a 6 pin cable I mentioned in one of the above posts. I don't know why someone did that, I'm fairly certain it wasn't supposed to, plus it was the wrong cable.
Update: No, that cable did NOT come with the ACMC board - I thought it did, but then I found the receipt that showed I bought 3 of them from Lionel, I realized they were for some LCRU units I have. So.....my mistake!
George