Replacing a smoke detector with 4 wires to one with three

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  #1  
Old 10-28-11, 09:13 AM
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Replacing a smoke detector with 4 wires to one with three

I am replacing a very old smoke detector on a house over 30 yrs old. The old detector has a white, black, violet, & brown wire. White goes to a connector with two whites, black goes to a connector with two black wires.

The violet goes to another white wire and the brown goes to another black wire. The new smoke detector has a white, black, & red. The directions say the red is used to connect all detectors on a single circuit so when one goes off they all do.

Any idea what the violet & brown wires are used for in the house? Can I hook up the white & black wires in the new detector and just cover the additional white & black wires the violet & brown wires go to? I do not have a problem if the detectors are not on the same circuit but it would be great if they are.

Thanks,

Botrott
 
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  #2  
Old 10-28-11, 10:30 AM
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Do you have a security system and the smoke detectors are tied into that?

Or do you have other smoke detectors and if one goes off, they all go off at the same time?
 
  #3  
Old 10-28-11, 03:54 PM
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There is no security system, there are 2 smoke detectors and I'm not sure if they are connected.
 
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