stupid noob question about servo polarity

[drphoto]

ok, on servos, I assume the the black and red wires are power and the other (white, yellow, etc) is signal. Since the plugs are non-polorized can the electronics of the the RX or servo be damaged if it is plugged in backwards? How do you tell the correct way if not Futaba w/ their tabbed plug?

I've only had a Blade 'till now and if I had to replug a servo, I'd just do it the way it came, but on my Rex, I don't want to damage anything.

thanks

[mudbogger2]

If it is reversed it will not hurt anything but the servo will not work untill it is plugged in properly.

[MarkD]

If pluging into a futaba Rx the signal wire is nearest the cutout (where the tab on futaba plugs slots in)

[Pinecone]

Hot is the middle, so no matter which way you hook it up, the power is on the correct pin.