Over the back - Revision history

Jnc: have MM8-E Memory System page now

2021-11-07T21:15:10Z

have MM8-E Memory System page now

← Older revision		Revision as of 21:15, 7 November 2021
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	'''Over the back''' or '''over the top''' are terms used to describe an alternative connectivity [[data path\|path]] between two more more [[printed circuit board\|boards]] plugged into a [[backplane]]; i.e. not using the [[bus]] carried by the backplane.		'''Over the back''' or '''over the top''' are terms used to describe an alternative connectivity [[data path\|path]] between two more more [[printed circuit board\|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 connector]] headers each board.		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 connector]] headers each board.

	In a few cases (e.g. [[~~PDP~~-~~8 family\|PDP-8~~]] [[main memory]]), instead of headers, 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. [[MM8-E Memory System]] [[main memory]]), instead of headers, 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.

	{{semi-stub}}		{{semi-stub}}

	[[Category: Components]]		[[Category: Components]]

Jnc: +links, clarify

2021-08-23T13:26:46Z

+links, clarify

← Older revision		Revision as of 13:26, 23 August 2021
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	'''Over the back''' or '''over the top''' are terms used to describe an alternative connectivity [[data path\|path]] between two more more boards plugged into a [[backplane]]; i.e. not using the [[bus]] carried by the backplane.		'''Over the back''' or '''over the top''' are terms used to describe an alternative connectivity [[data path\|path]] between two more more [[printed circuit board\|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 connector]]s each board.		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 connector]] headers each board.

	In a few cases (e.g. [[PDP-8 family\|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 family\|PDP-8]] [[main memory]]), instead of headers, 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.

	{{semi-stub}}		{{semi-stub}}

	[[Category: Components]]		[[Category: Components]]

Jnc: fix link

2019-11-22T20:34:22Z

fix link

← Older revision		Revision as of 20:34, 22 November 2019
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	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 connector]]s each board.		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 connector]]s 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.		In a few cases (e.g. [[PDP-8 family\|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.

	{{semi-stub}}		{{semi-stub}}

	[[Category: Components]]		[[Category: Components]]

Jnc: +cat

2018-12-14T18:59:22Z

+cat

← Older revision		Revision as of 18:59, 14 December 2018
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	{{semi-stub}}		{{semi-stub}}

			[[Category: Components]]

Jnc: Proper cat

2018-10-20T02:19:02Z

Proper cat

← Older revision		Revision as of 02:19, 20 October 2018
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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.

	{{stub}}		{{semi-stub}}

Jnc: A decent start

2018-05-09T14:19:02Z

A decent start

New page

'''Over the back''' or '''over the top''' are terms used to describe an alternative connectivity [[data path|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 connector]]s 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.

{{stub}}