Intruders passing through the barrier break the beams and trigger an alarm contact, causing their presence to be detected without their knowledge.

入侵者通过屏障时会干扰红外光束，从而触发警报接触，使得他们被发现，而自己却不知情。

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When the secured door is forced open, the unit recognizes the intrusion violation and responds by activating an alarm contact and sounding the alarm continuously until it is reset.

当安全门被强制打开时，这个出口警报会识别入侵者并激活警报连接，使其持续不断发出警报声，直到重新设置才停止。

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An optional alarm output contact transfer provides remote signaling capability (24 VAC, 1a).

任意警报产品联络调动提供遥远的信号能力(24 VAC, 1 A)。

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So it includes, you know, YouTube, Google Maps, the Web browser, phone functionality, contact management, calendar, alarm clock, like everything in a bundle.

NPR: Google's Android Makes Phones Act Like PCs

"We didn't want to alarm people unnecessarily and we certainly didn't want to contact 6, 200 people in this particular case, " Mr Smit said.

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Roger is aided by a contact at a security firm, Ove (Eivind Sander), who disables the alarm and takes his cut.

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