电缆插座、接线板和其他互联部件被看成无源第一层部件，因为它们只简单提供某种通路。
Patch cables , path panels, and other interconnection components are considered passive Layer 1 components because they simply provide some sort of conducting path.
连接，断开连接，并重新定位电缆插座，安装分离器，转换器，解码器，卫星电视和付费电视设备，并在用户的处所安装其他有线硬件和系统。
Connect, disconnect and relocate cable outlets, install splitters, converters, decoders, satellite and pay TV equipment, and install other cable hardware and systems at subscriber's premises.
检查瞄准镜电缆插头与相应插座(xs1)之间连接是否松动。
Check whether connection between cable plug of sighting telescope and corresponding socket (XS1) is loose or not.
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