Abstract: A storage cabinet for printed circuit boards is provided with a housing having a pair of substantially parallel and opposed flat surfaced support members on each of which is secured a plurality of printed circuit board retaining plates arranged in edge to edge relationship. The retaining plates are removably secured and held to the support members by inter-engagement means comprising a plurality of locking bars and at least one locking ridge integrally formed and projecting from the rear surface of each of the retaining plate. The locking bars have in cross section a portion overlying the plate and form therewith a lateral channel. The abutting surface of the support member is provided with a plurality of flexible first and second fingers integrally formed with the supporting member and projecting out of the plane of the supporting member. The first fingers are bent downwardly in a lateral direction opposite the second fingers to engage the locking ridge.

Abstract: A termination frame assembly mounts signal conditioner circuit boards for a data acquisition system individually on a frame with an electromagnetic interference (EMI) barrier extending along the front edge and bending back over the circuit board and then out to form an integral trough through which the field wiring is routed to field terminals on terminal strips in the front face of the barrier. The circuit board is installed from the rear with a guide block, keyed to accept only a selected one of a family of boards, lifting the center of the leading edge to align edge connectors with connectors on the rear of the terminal strips.

Abstract: A snap-in bus bar is mechanically affixed to a printed circuit board to increase mechanical stiffness of the board and electrically connected to the printed circuit paths to provide a high current capacity conducting path. The bus bar includes a support member to provide insulation between conducting members attached thereto.