| 摘要 |
An equipment shelf, for removably retaining circuit boards at selectably spaced locations in a system, includes side panels being connected in a spaced relationship one with another by extruded aluminum cross connecting members. A board slider retaining element in the form of an elongated polycarbonate strip is laterally and removably disposed in each cross connecting member. Each strip defines fastening locations, mounting orifices, being arranged in a predetermined pattern. Each of a plurality of board sliders is longitudinally fixed between a pair of the fastening locations, so that lateral spacings of circuit board positions in the equipment shelf are defined by the fastening locations. Lateral spacings of circuit board locations for a system are conveniently selectable by manufacture or choice of polycarbonate strips with an appropriate arrangement of the mounting orifices.
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