<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
		<id>https://gunkies.org/index.php?action=history&amp;feed=atom&amp;title=DW750_Second_Unibus_Interface</id>
		<title>DW750 Second Unibus Interface - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://gunkies.org/index.php?action=history&amp;feed=atom&amp;title=DW750_Second_Unibus_Interface"/>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=DW750_Second_Unibus_Interface&amp;action=history"/>
		<updated>2026-04-08T22:19:52Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.30.1</generator>

	<entry>
		<id>https://gunkies.org/w/index.php?title=DW750_Second_Unibus_Interface&amp;diff=34749&amp;oldid=prev</id>
		<title>Jnc: /* See also * +UI750 Unibus Interface</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=DW750_Second_Unibus_Interface&amp;diff=34749&amp;oldid=prev"/>
				<updated>2024-06-10T14:25:17Z</updated>
		
		<summary type="html">&lt;p&gt;/* See also * +UI750 Unibus Interface&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 14:25, 10 June 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot; &gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It was implemented on one [[DEC card form factor|extended hex]] card, the L0010 Unibus Adapter (UBA or SUB), which mounted in the VAX-11/750 [[backplane]] in one of the three [[VAX-11/750#Backplane_configuration|CMI option slots]]. A VAX-11/750 could have up to one DW750 Second Unibus Interface.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It was implemented on one [[DEC card form factor|extended hex]] card, the L0010 Unibus Adapter (UBA or SUB), which mounted in the VAX-11/750 [[backplane]] in one of the three [[VAX-11/750#Backplane_configuration|CMI option slots]]. A VAX-11/750 could have up to one DW750 Second Unibus Interface.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160; &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160; &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Additional &lt;/del&gt;reading==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;See also==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* [[UI750 Unibus Interface]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;==Further &lt;/ins&gt;reading==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* ''VAX Hardware Handbook (1980-81)'' (EB-17281-20) - the DW750 is covered in some detail in Chapter 9, pp. 157-174&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* ''VAX Hardware Handbook (1980-81)'' (EB-17281-20) - the DW750 is covered in some detail in Chapter 9, pp. 157-174&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key mediawiki-wiki_:diff:version:1.11a:oldid:34495:newid:34749 --&gt;
&lt;/table&gt;</summary>
		<author><name>Jnc</name></author>	</entry>

	<entry>
		<id>https://gunkies.org/w/index.php?title=DW750_Second_Unibus_Interface&amp;diff=34495&amp;oldid=prev</id>
		<title>Jnc: Mostly a clone of the UI750 page</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=DW750_Second_Unibus_Interface&amp;diff=34495&amp;oldid=prev"/>
				<updated>2024-05-17T14:45:43Z</updated>
		
		<summary type="html">&lt;p&gt;Mostly a clone of the UI750 page&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The '''DW750 Second Unibus Interface''' was an optional extra [[UNIBUS]] adapter for the [[VAX-11/750]]; it connected to the [[CPU/Memory Interconnect]] (CMI). It was very similar to the [[UI750 Unibus Interface|UI750]], but did not contain the additional functionality (console, etc) of the UI750.&lt;br /&gt;
&lt;br /&gt;
It was implemented on one [[DEC card form factor|extended hex]] card, the L0010 Unibus Adapter (UBA or SUB), which mounted in the VAX-11/750 [[backplane]] in one of the three [[VAX-11/750#Backplane_configuration|CMI option slots]]. A VAX-11/750 could have up to one DW750 Second Unibus Interface.&lt;br /&gt;
 &lt;br /&gt;
==Additional reading==&lt;br /&gt;
&lt;br /&gt;
* ''VAX Hardware Handbook (1980-81)'' (EB-17281-20) - the DW750 is covered in some detail in Chapter 9, pp. 157-174&lt;br /&gt;
&lt;br /&gt;
==External links==&lt;br /&gt;
&lt;br /&gt;
* [http://www.bitsavers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_1_1986.pdf VAX Hardware Handbook Volume 1] - the DW750 is covered in Chapter 11 (pp. 428-451 of the PDF)&lt;br /&gt;
* [https://vt100.net/mirror/hcps/si75fin1.pdf VAX-11/750 Installation Manual] (EK-SI75F-IN-001) - the DW750 is covered in Chapter 5 (pp. 103-112 of the PDF)&lt;br /&gt;
* [https://vt100.net/mirror/antonio/ek-vaxv3-hb-001.pdf VAX Maintenance Handbook VAX-11/750] (EK-VAXV3-HB-001) - the layout of the DW750 is given on pg. 62 (pg. 74 of the PDF), and a block diagram on pg. 176 (pg. 188)&lt;br /&gt;
* [https://web.archive.org/web/20071004184622/http://computer-refuge.org/compcollect/dec/vax/11750/L0010-big.jpg L0010 (UBA)] - DW750 Secondary Unibus Interface image&lt;br /&gt;
&lt;br /&gt;
[[Category: CMI]]&lt;br /&gt;
[[Category: UNIBUS]]&lt;/div&gt;</summary>
		<author><name>Jnc</name></author>	</entry>

	</feed>