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Author Topic: RF Wireless Smoke Alarms  (Read 23346 times)

Offline Gel

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RF Wireless Smoke Alarms
« Reply #15 on: June 05, 2005, 05:55:39 PM »
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Insleymike

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RF Wireless Smoke Alarms
« Reply #16 on: July 12, 2005, 02:21:24 PM »
Quote from: Gary Howe
Chris,

I think Mark is talking about a savwire fire alarm system which uses 3 conductors, 2 are used for the detection circuit and the 3rd conductor is used to operate the sounders in alarm condition. These systems are still out there, these were the first fire alarm systems where you were able to have sounder and detectors together. Now its all loop powered so the old savewire is no virtually redundant.

hope this helps.


Gary

This is called a 3-Wire system and NOT Sav-Wire which is a recent (fairly) 2 wire system

Mike I
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