Difference between revisions of "BA11 mounting boxes"

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(Move -11/20 BA11 to its own page)
(Use canonical name, avoid redir)
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They included:
 
They included:
  
* [[BA11 mounting box|BA11]] - used in the [[PDP-11/20]]
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* [[BA11 mounting box|BA11]] - the first, used in the [[PDP-11/20]]
* [[BA11-A]] - a late unit, used for the [[PDP-11/44]]
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* [[BA11-A mounting box|BA11-A]] - a late unit, used for the [[PDP-11/44]]
* [[BA11-D]] - used for the [[PDP-11/05]]
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* [[BA11-D mounting box|BA11-D]] - used for the [[PDP-11/05]]
* [[BA11-F]] - used in the larger -11's like the [[PDP-11/45]]
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* [[BA11-F mounting box|BA11-F]] - used in the larger -11's like the [[PDP-11/45]]
* [[BA11-K]] - used to hold both [[Central Processing Unit|CPUs]] as well as devices
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* [[BA11-K mounting box|BA11-K]] - used to hold both [[Central Processing Unit|CPUs]] as well as devices
* [[BA11-L]] - ditto
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* [[BA11-L mounting box|BA11-L]] - ditto
  
 
The -F was a 21" box, and the -L a 5-1/4"; the rest were all 10-1/2".
 
The -F was a 21" box, and the -L a 5-1/4"; the rest were all 10-1/2".
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There were also two boxes in the BA11 series which held [[DEC card form factor|quad]] [[QBUS]] backplanes:
 
There were also two boxes in the BA11 series which held [[DEC card form factor|quad]] [[QBUS]] backplanes:
  
* [[BA11-N]]
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* [[BA11-N mounting box|BA11-N]]
* [[BA11-S]]
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* [[BA11-S mounting box|BA11-S]]

Revision as of 13:20, 30 October 2017

The BA11 is the name for a series of hex system unit backplane mounting boxes for the H960 series of 19"-wide racks produced by DEC. Although they were intended to be rack-mounted, many were available in table-top configuration as well.

The H960 racks provided 63" of vertical mounting space, divided into units of 10-1/2", which were further subdividable into a pair of 5-1/4" spaces. The BA11 mounting boxes were designed for these spaces.

They included:

The -F was a 21" box, and the -L a 5-1/4"; the rest were all 10-1/2".

There were also two boxes in the BA11 series which held quad QBUS backplanes: