https://gunkies.org/index.php?action=history&feed=atom&title=DD11-A_backplane 2026-10-09T22:29:40Z Revision history for this page on the wiki MediaWiki 1.43.9 https://gunkies.org/w/index.php?title=DD11-A_backplane&diff=37514&oldid=prev 2026-10-09T00:18:38Z

<p><span class="autocomment">External links: </span> Bitsavers has reorganized a bit</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 00:18, 9 October 2026</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==External links==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==External links==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  </div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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;"><div>* [http://www.bitsavers.org/pdf/dec/unibus/<del style="font-weight: bold; text-decoration: none;">DB11</del>-<del style="font-weight: bold; text-decoration: none;">A_RevS_Engineering_Drawings_Jan76</del>.pdf DD11-A Engineering Drawings]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; 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;"><div>* [http://www.bitsavers.org/pdf/dec/unibus/<ins style="font-weight: bold; text-decoration: none;">DD11</ins>-<ins style="font-weight: bold; text-decoration: none;">A/DD11-A_RevC_Engineering_Drawings_Sep71</ins>.pdf DD11-A Engineering Drawings]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; 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;"><div>[[Category: UNIBUS Backplanes<del style="font-weight: bold; text-decoration: none;">]</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; 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;"><div>[[Category: UNIBUS Backplanes]]</div></td></tr> <!-- diff cache key mediawiki-wiki_:diff:1.41:old-29118:rev-37514:php=table --> </table>

Jnc https://gunkies.org/w/index.php?title=DD11-A_backplane&diff=29118&oldid=prev 2023-03-27T11:20:39Z

<p>Finally create this one</p> <p><b>New page</b></p><div>The &#039;&#039;&#039;DD11-A backplane&#039;&#039;&#039; is a 4-slot [[UNIBUS]] [[backplane]] [[system unit]]; it provided 4 [[Small Peripheral Controller]] slots. It was normally installed in a [[BA11-C Mounting Box|BA11-C]] or [[BA11-E Mounting Box|BA11-E]] mounting box.<br /> <br /> It was supplied with power, not by a [[power harness]] connected to the back of the backplane, as all later [[DD11 backplanes]] did, but through a paddle card which plugged into the [[DEC edge connector contact identification|3A slot/connector]]; the paddle card was wired to a power harness which ran longitudinally within the BA11.<br /> <br /> DD11-A&#039;s were mounted crosswise within the BA11, unlike all later DD11&#039;s, which were mounted longitudinally. This made them unable to hold [[DEC card form factor|hex]] cards, since such cards would have intruded into the space used to hold the cooling fans which ran down the wide of the BA11.<br /> &lt;!--<br /> The two [[DEC card form factor|hex-width]] slots were wired to support a [[DF11 Communications Line Adapter]] (in the A-B [[DEC edge connector contact identification|connectors]]) along with a quad-width [[serial line]] [[device controller|interface]], such as the [[DL11 asynchronous serial line interface|DL11]] or the [[DU11 synchronous serial line interface|DU11]].<br /> --&gt;<br /> ==External links==<br /> <br /> * [http://www.bitsavers.org/pdf/dec/unibus/DB11-A_RevS_Engineering_Drawings_Jan76.pdf DD11-A Engineering Drawings]<br /> <br /> [[Category: UNIBUS Backplanes]]]</div>

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