I'm trying to rig something with a pair of 12V relays and I'm a little stumped. I'm trying to set one of the relays up to be normally on and the other relay normally off. There is one trigger wire that will trigger the "normally off" relay and the goal is to have that relay trigger the other relay to shut off until the trigger voltage is cut. In a nutshell one relay will always be on depending on if there is a trigger signal.
I know I've seen a diagram for this online before but I can't seem to remember what they call it, let alone how to wire it up.