| 摘要 |
A combined alarm system and window covering assembly includes a top housing, a bottom rail, a covering, a continuous conductive wire which has a first end and a second end and an alarm device. The alarm device has a first input terminal and a second input terminal. The covering is mechanically coupled to the top housing and the bottom rail. The continuous conductive wire extends from the top housing down to the bottom rail and up from the bottom rail to the top housing. The first and second ends of said continuous conductive wire are electrically coupled to the first and second input terminals of the alarm system. The continuous conductive wire is coupled with the bottom rail as a main pull string for raising and lowering the bottom rail and the covering.
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