Geometrical instruments
Patent
1978-06-30
1979-12-18
Abrams, Neil
Geometrical instruments
361413, H05K 107
Patent
active
041791720
ABSTRACT:
This relates to a packaging apparatus for coupling modular hardware (e.g. printed circuit boards) to both the bus of a digital system and to industrial end devices such as relays, thermocouples, etc. A motherboard connected to the rear of a card cage couples a first group of edge connectors on each card to the digital system bus. The motherboard has a plurality of clearance holes therein for providing access to a second group of edge connectors on each card. A dedicated terminal assembly having end device field wiring connected thereto is electrically coupled to the second group of edge connectors of a particular card by either passing a suitable connector attached to the assembly through one of the clearance holes or by coupling the second group to the assembly by a suitable cable which passes through the hole.
REFERENCES:
patent: 2951185 (1960-08-01), Buck
patent: 3147404 (1964-09-01), Sinner
patent: 3771101 (1973-11-01), Elkins
IBM Tech. Discl. Bulletin, Berger et al., vol. 11, No. 7, p. 723, 12-1968.
Christensen Rusty S.
Godsey Ernest E.
Hoyle George W.
Abrams Neil
Burr-Brown Research Corporation
Weiss Harry M.
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