https://wiki.w9cr.net/index.php?action=history&feed=atom&title=Dave_NX4Y_v.24_Board 2026-05-25T20:20:04Z Revision history for this page on the wiki MediaWiki 1.34.4 https://wiki.w9cr.net/index.php?title=Dave_NX4Y_v.24_Board&diff=7994&oldid=prev 2024-07-08T04:15:00Z

<p></p> <table class="diff diff-contentalign-left" 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: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 04:15, 8 July 2024</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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>[[Category:V.24]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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>[[Category:V.24]]</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; 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>Dave Krauss, NX4Y made a v.24 board circa 2017 which was the minimum viable product of a v.24 board.  This was amazing in it's simplicity, only 3 parts and one IC.   </div></td><td class='diff-marker'>+</td><td style="color: #222; 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>Dave Krauss, NX4Y <ins class="diffchange diffchange-inline">&lt;ref&gt;https://files.tapr.org/meetings/DCC_2016/DCC2016-P25Network.pdf&lt;/ref&gt; </ins>made a v.24 board circa 2017 which was the minimum viable product of a v.24 board.  This was amazing in it's simplicity, only 3 parts and one IC.   </div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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>It worked well to interconnect the quantar to a Cisco DEC interface, but had no provisions for internal clocking or any ESD protection.  Bypass caps were absent and there was no RF protection on it.  They worked well in the Quantar, but the RJ-45 connector was placed improperly to sit without a great deal of cant on the 8 wire/astrotac wireline board.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; 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>It worked well to interconnect the quantar to a Cisco DEC interface, but had no provisions for internal clocking or any ESD protection.  Bypass caps were absent and there was no RF protection on it.  They worked well in the Quantar, but the RJ-45 connector was placed improperly to sit without a great deal of cant on the 8 wire/astrotac wireline board.  </div></td></tr> </table>

Bryan https://wiki.w9cr.net/index.php?title=Dave_NX4Y_v.24_Board&diff=7993&oldid=prev 2024-07-08T04:13:49Z

<p>Created page with &quot;<a href="/index.php/Category:V.24" title="Category:V.24">Category:V.24</a> Dave Krauss, NX4Y made a v.24 board circa 2017 which was the minimum viable product of a v.24 board. This was amazing in it&#039;s simplicity, only 3 parts and...&quot;</p> <p><b>New page</b></p><div>[[Category:V.24]]<br /> Dave Krauss, NX4Y made a v.24 board circa 2017 which was the minimum viable product of a v.24 board. This was amazing in it's simplicity, only 3 parts and one IC. <br /> <br /> It worked well to interconnect the quantar to a Cisco DEC interface, but had no provisions for internal clocking or any ESD protection. Bypass caps were absent and there was no RF protection on it. They worked well in the Quantar, but the RJ-45 connector was placed improperly to sit without a great deal of cant on the 8 wire/astrotac wireline board. <br /> <br /> <br /> &lt;gallery mode=packed widths=300px heights=300px&gt;<br /> nx4y v.24 board front.jpg<br /> nx4y v.24 board back.jpg<br /> nx4y v.24 board fit issue.jpg<br /> nx4y v.24 board fit issue canted all in side.jpg<br /> nx4y v.24 board fit issue canted all in.jpg<br /> nx4y v.24 board fit issue canted.jpg<br /> &lt;/gallery&gt;<br /> <br /> <br /> <br /> This design provided the impetus for me to design [[V.24 Level Shifter Board|my board]]</div>

Bryan