I think its the Americans, not you Brits :-), who are responsible for this piece of nonsense. For some reason, they didn't want users connecting high gain antennas to wireless routers so specified that "non-standard" should be used. The cheapest way to meet this spec was to swap the pins around in standard connectors such SMAs TNCs etc. It's just created a new class of connector plus a lot of confusion.
Its worth just checking out what you need by looking at the pics on this link:
What is reverse polarity? Do i need a certain type of cable for connectors, I'm in the UK.
many thanks in advance for any help you can give.