A lot of the somewhat older coin acceptors have the 10 pins connector but no cctalk connector.
That's why I made the correction.
Some brands offfer the choice to have either cctalk or a parallel output.
cctalk is suposed to be the successor of the parallel output. The idea is that you can have multiple devices on the same serial bus. It makes cabling less complicated. It's being in use on gambling machines. It's not yet popular on amusement machines.
And, as you said, it can be used to program the coin acceptor, but I doubt there is a standard for that?
It's kind of confusing to see a 14 pins connector on a 10 pins header. It might help against misalignment, but some coin acceptors probably won't accept the plug due to the hole in the housing being 2 small.
But... It's getting of topic. (This is not Wikipedia after all.)