How much protection (fuses, overvoltage, reverse polarity protection and such) would be appropriate in the following setup on the Board component:
Power supply -> Cable -> Board -> Cable -> Board
The Cable is of the type that it's very hard to put in the other way around (kinda like a Molex computer cable).
The board is a module that should be (re)placed by the user.
So, the question: How much protection is appropriate? Fuses? Overvoltage? Reverse polarity?