https://gunkies.org/index.php?action=history&feed=atom&title=M9300_UNIBUS_B_Terminator 2026-05-13T18:10:33Z Revision history for this page on the wiki MediaWiki 1.30.1 https://gunkies.org/w/index.php?title=M9300_UNIBUS_B_Terminator&diff=26951&oldid=prev 2022-07-06T19:40:23Z

<p>Jnc moved page <a href="/wiki/M9300_terminator" class="mw-redirect" title="M9300 terminator">M9300 terminator</a> to <a href="/wiki/M9300_UNIBUS_B_Terminator" title="M9300 UNIBUS B Terminator">M9300 UNIBUS B Terminator</a>: Formal DEC name</p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr style="vertical-align: top;" lang="en"> <td colspan="1" style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: white; color:black; text-align: center;">Revision as of 19:40, 6 July 2022</td> </tr><tr><td colspan="2" style="text-align: center;" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Jnc https://gunkies.org/w/index.php?title=M9300_UNIBUS_B_Terminator&diff=26950&oldid=prev 2022-07-06T19:39:54Z

<p>Reasonably complete</p> <p><b>New page</b></p><div>[[Image:M9300Terminator.jpg|250px|thumb|right|M9300 terminator card]]<br /> <br /> The '''M9300 UNIBUS B Terminator''' is a [[terminator]] for a [[UNIBUS]] which does not have an arbitrating processor (such as the B UNIBUS of an [[RH11 MASSBUS controller|RH11]]). In addition to the functions of a normal [[UNIBUS and QBUS termination|UNIBUS terminator]], it can optionally also generate an [[Non-Processor Request and Grant|NPG]] [[bus grant]] in response to an [[Non-Processor Request and Grant|NPR]]. When performing this function, it must be placed at the start of the UNIBUS (since the UNIBUS [[bus grant line]]s are run in serial fashion, from the head of the bus).<br /> <br /> The M9300 is a [[DEC card form factor|dual]] format card, intended for use in the [[DEC edge connector contact identification|two top (AB) sections]] of a [[Modified UNIBUS Device|MUD]] slot, or in a UNIBUS in/out slot (normally the first, so that it may source grants).<br /> <br /> ==See also==<br /> <br /> * [[M930 UNIBUS terminator]]<br /> <br /> ==External links==<br /> <br /> * [http://www.bitsavers.org/pdf/dec/unibus/RH11-AB_OptionDescr.pdf RH11-AB/Special Massbus Controller Option Description] (CSS-MO-F-5.2-26) - the M9300 is covered in section 4.24 (on pp. 69-70 of the PDF)<br /> * [http://www.bitsavers.org/pdf/dec/unibus/RH11-AB_Engineering_Drawings_Apr78.pdf RH11 Engineering Drawings] - the M9300 is covered on pp. 43-44 of the PDF<br /> <br /> [[Category: UNIBUS]]</div>

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