Over the back: Difference between revisions
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In a few cases (e.g. [[PDP-8]] [[main memory]]), instead of connectors, the back edge of the boards ''also'' has contact fingers, and what is effectively a small plug-on backplane is used to connect the cards. | In a few cases (e.g. [[PDP-8]] [[main memory]]), instead of connectors, the back edge of the boards ''also'' has contact fingers, and what is effectively a small plug-on backplane is used to connect the cards. | ||
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Revision as of 02:19, 20 October 2018
Over the back or over the top are terms used to describe an alternative connectivity path between two more more boards plugged into a backplane; i.e. not using the bus carried by the backplane.
On the board edge opposite to the 'fingers' which plug into the backplane, a flat cable, or in some cases a small printed circuit board, with a pair of connectors plugs into Berg connectors each board.
In a few cases (e.g. PDP-8 main memory), instead of connectors, the back edge of the boards also has contact fingers, and what is effectively a small plug-on backplane is used to connect the cards.
