Re: Question about dial contacts
That looks like a standard UK telephone dial. The Blue and Slate (grey) wires are an independant off-normal contact, open when the dial is at rest and closed as soon as you move the dial from the normal (rest) position.
Orange and Pink are the normally closed impulse contacts which open the appropriate number of times as the dial returns to the 'normal' position.
Pink and Brown are another normally-open off-normal contact (open when the dial is at rest, closed when you move it off the normal position). Of course this shares a terminal with the the impulse contacts.
What happens if you use the orange and brown wires? That would be normally open, close when you turn the dial, then open the appropriate number of times as the dial runs back and finally open (and stay open) when the dial is back to the normal position.
Incidentally, I learnt to remember the order of those wires on the dial terminals by :
Bill (Blue)
Said (Slate)
B****r (Brown)
[the]
Post (Pink)
Office (Orange)
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