四条线才能同步.

回答: 今有一事不明请教于诸位(电)borisg2012-05-05 18:38:26

同步第一要求,同一种品牌.

同步第二要求,4条线:红线专门用来相互通信的,房子里没有用四线布的话,只能单独报警.

If I recall correctly: black to black, bare or green to bare or green, white to white and red/yellow/blue etc. to red from wall. Now red ... well.

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what's wrong with wxc these days ... -wooddiy- 给 wooddiy 发送悄悄话 wooddiy 的博客首页 (0 bytes) () 05/05/2012 postreply 20:29:10

HD sold detectors has only 3 lines: blk, w, and r -borisg- 给 borisg 发送悄悄话 borisg 的博客首页 (0 bytes) () 05/05/2012 postreply 20:57:02

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