BA11-M mounting box - Revision history

Jnc: +New category

2024-07-26T15:10:25Z

+New category

2024-07-26T15:09:33Z

+New category

2023-07-11T01:21:11Z

New cat

2023-07-09T03:44:45Z

‎See also: BA11-N,S

2023-07-09T03:42:06Z

More docs

2023-07-08T06:06:36Z

link to H9270 page

2023-07-07T19:21:42Z

link H780

2023-07-02T19:03:39Z

‎External links: +microcomputer interfaces handbook

2023-06-22T07:03:37Z

PDP-11/23 / PDP-11/23+ usage added

2023-06-22T06:32:18Z

Some more links added

← Older revision		Revision as of 01:21, 11 July 2023
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	* [http://www.bitsavers.org/pdf/dec/pdp11/1103/1103_Schematics.pdf PDP-11/03 Engineering Drawings] - the BA11-M is covered on pp. 137-140 of the PDF		* [http://www.bitsavers.org/pdf/dec/pdp11/1103/1103_Schematics.pdf PDP-11/03 Engineering Drawings] - the BA11-M is covered on pp. 137-140 of the PDF

−	[[Category: DEC ~~Hardware~~]]	+	[[Category: DEC Mounting Boxes]]

← Older revision		Revision as of 03:44, 9 July 2023
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	The BA11-M was replaced by the [[BA23 Enclosure]] from 1983 onwards.		The BA11-M was replaced by the [[BA23 Enclosure]] from 1983 onwards.
		+
		+	{{semi-stub}}
		+
		+	==See also==
		+
		+	* [[BA11-N mounting box]]
		+	* [[BA11-S mounting box]]

	==Further reading==		==Further reading==

@@ Line 10: / Line 10: @@
 The BA11-M was replaced by the [[BA23 Enclosure]] from 1983 onwards.
 ==External links==
 * [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - the BA11-M is covered on pp. 67-73 (pp. 75-81 of the PDF)
 [[Category: DEC Hardware]]

← Older revision		Revision as of 06:06, 8 July 2023
Line 1:		Line 1:
−	The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation\|DEC]]. It included an [[H780 power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an [[~~QBUS backplanes~~\|H9270-A]] 4-slot [[QBUS#Backplanes\|Q/Q]] [[backplane]], which could hold [[DEC card form factor\|quad-sized]] cards.	+	The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation\|DEC]]. It included an [[H780 power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an [[H9270 backplane\|H9270-A]] 4-slot [[QBUS#Backplanes\|Q/Q]] [[backplane]], which could hold [[DEC card form factor\|quad-sized]] cards.

	In the beginning the BA11-M was for [[PDP-11/03]]'s, but the [[LSI-11]] used in that machine was only [[QBUS#Variable_address_size\|Q16]] capable, making the Q18 H9270-A backplane somewhat excessive. Later on it was used for the Q18/Q22 [[PDP-11/23]]/[[PDP-11/23+]], too.		In the beginning the BA11-M was for [[PDP-11/03]]'s, but the [[LSI-11]] used in that machine was only [[QBUS#Variable_address_size\|Q16]] capable, making the Q18 H9270-A backplane somewhat excessive. Later on it was used for the Q18/Q22 [[PDP-11/23]]/[[PDP-11/23+]], too.

@@ Line 1: / Line 1: @@
-The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation|DEC]]. It included an H780 [[power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an [[QBUS backplanes|H9270-A]] 4-slot [[QBUS#Backplanes|Q/Q]] [[backplane]], which could hold [[DEC card form factor|quad-sized]] cards.
+The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation|DEC]]. It included an [[H780 power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an [[QBUS backplanes|H9270-A]] 4-slot [[QBUS#Backplanes|Q/Q]] [[backplane]], which could hold [[DEC card form factor|quad-sized]] cards.
 In the beginning the BA11-M was for [[PDP-11/03]]'s, but the [[LSI-11]] used in that machine was only [[QBUS#Variable_address_size|Q16]] capable, making the Q18 H9270-A backplane somewhat excessive. Later on it was used for the Q18/Q22 [[PDP-11/23]]/[[PDP-11/23+]], too.
@@ Line 13: / Line 13: @@
 ==External links==
-* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - BA11-M is covered on pp. 67-73, 75-81 of the PDF
+* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - the BA11-M is covered on pp. 67-73 (pp. 75-81 of the PDF)
 [[Category: DEC Hardware]]

← Older revision		Revision as of 19:03, 2 July 2023
Line 10:		Line 10:

	The BA11-M was replaced by the [[BA23 Enclosure]] from 1983 onwards.		The BA11-M was replaced by the [[BA23 Enclosure]] from 1983 onwards.
		+
		+	==External links==
		+
		+	* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - BA11-M is covered on pp. 67-73, 75-81 of the PDF

	[[Category: DEC Hardware]]		[[Category: DEC Hardware]]

@@ Line 1: / Line 1: @@
-The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation|DEC]]. It included an H780 [[power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an H9270-A 4-slot [[QBUS#Backplanes|Q/Q]] [[backplane]], which could hold [[DEC card form factor|quad-sized]] cards.
+The '''BA11-M mounting box''' was the first [[QBUS]] [[PDP-11]] [[mounting box]] from [[Digital Equipment Corporation|DEC]]. It included an H780 [[power supply]] (which provided 18A of +5V, and 3.5A of +12V); and an [[QBUS backplanes|H9270-A]] 4-slot [[QBUS#Backplanes|Q/Q]] [[backplane]], which could hold [[DEC card form factor|quad-sized]] cards.
 The BA11-M was for [[PDP-11/03]]'s, but the [[LSI-11]] used in that machine was only [[QBUS#Variable_address_size|Q16]] capable, making the Q18 H9270-A backplane somewhat excessive.
@@ Line 8: / Line 8: @@
 It was a 3-1/2" tall mounting box; its other dimensions were 17-1/2" wide (19" for the front panel), and 13-1/2" deep. The rack mounting was 15" long. It weighed 40 lbs (without any boards).
 [[Category: DEC Hardware]]