Keying apparatus for connecting a printed wiring assembly to a b

Details Keying apparatus for connecting a printed wiring assembly to a b Keying apparatus for connecting a printed wiring assembly to a b

1987-12-21

1989-06-20

Sikes, William L.

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

439677, H01R 13639

Patent

active

048405868

ABSTRACT:
A keying apparatus is provided including a key support structure having a plurality of protrusions which mate with a corresponding plurality of recesses formed in an edge surface of a printed wiring assembly. The key support structure includes a mechanism for permanently latching the key support structure at a predetermined location on a mounting rail adjacent a backplane interconnect. The printed wiring assembly is conveniently removable from the key support structure. This keying apparatus assures that when a printed wiring assembly is removed from the key support structure at a predetermined location on the rail, only the proper printed wiring assembly may be reinserted at that location.

REFERENCES:
patent: 3930706 (1976-01-01), Obuch et al.
patent: 4157785 (1979-06-01), Freliech
patent: 4568134 (1986-02-01), DiMondi
patent: 4693532 (1987-09-01), Colleran et al.
patent: 4695112 (1987-09-01), Maston et al.

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