In the safe protection net (SPN) designed, the connection of the frontage control boxes and the center control station is accomplished by the communication net.

在设计的安全防护网络(SPN)中，前端控制箱与中央控制台之间的联系是由通讯网络来完成的。

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Water-proof adhesive glue should be filled in the inner cavity of junction boxes at wet areas. Connection ends of the parts in hazardous areas shall be added explosion proof daub.

潮湿区域的接线盒内腔应灌注防水胶，防爆区域部件连接端应填加防爆胶泥。

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It will be rolling out fibre to the cabinet technology (FTTC) - which provides a fibre connection as far as the familiar green boxes on the corner of streets but still relies on copper wiring for the so-called last mile between the cabinet and the home.

BBC: Sheffield in broadband fast lane