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diff --git a/blog/post/rbus-adat-m.html b/blog/post/rbus-adat-m.html index 803bc5f..2b2a879 100644 --- a/blog/post/rbus-adat-m.html +++ b/blog/post/rbus-adat-m.html @@ -3,7 +3,7 @@ <meta name="viewport" content="width=device-width,initial-scale=1"> <meta name="theme-color" content="#000000"> <title>Chrisoft::Blog(r#"RBUS-ADAT User Manual")</title> -<meta name="description" content="«RBUS-ADAT User Manual» de spelunca ursae visere"> +<meta name="description" content="«RBUS-ADAT User Manual» de spelunca ursae"> <meta name="author" content="Chris Xiong"> <script type="text/javascript" src="/panel.js"></script> <script type="text/javascript" src="/themer.js"></script> @@ -237,7 +237,7 @@ div.array {text-align:center;} <h1>RBUS-ADAT User Manual</h1> <div class="author"></div><br> -<img alt="PIC" src="//filestorage.chrisoft.org/blog/img/rbus-adat-cvc.png" height="426" decoding="async"> +<img height="426" alt="PIC" src="//filestorage.chrisoft.org/blog/img/rbus-adat-cvc.png" decoding="async"> <div class="date"></div> This version of the manual is for <span class="ec-qplb-x-x-109">revision 1 </span>of the board. Copyright Chris Xiong 2024. Copying of this hardware and its design as well as this documentation is permitted @@ -334,7 +334,7 @@ appreciated. <h2 id="tocanch5" class="tvis"><span class="titlemark">6 </span> <a id="x1-60006"></a>What’s on the board</h2> <div class="center"> <!-- l. 155 --><p class="noindent"> -</p><!-- l. 156 --><p class="noindent"><img alt="PIC" src="//filestorage.chrisoft.org/blog/img/rbus-adat-tvp.png" height="341" decoding="async"></p></div> +</p><!-- l. 156 --><p class="noindent"><img height="341" alt="PIC" src="//filestorage.chrisoft.org/blog/img/rbus-adat-tvp.png" decoding="async"></p></div> <ol class="enumerate1"> <li class="enumerate" id="x1-6002x1"> <!-- l. 160 --><p class="noindent"><span class="ec-qplb-x-x-109">R-BUS DB-25 Connector</span>. See “Choosing a suitable cable” for what you should and shouldn’t plug @@ -411,12 +411,12 @@ need the older style with DB-25 connectors (which conveniently have 25 pins). <div class="center"> <!-- l. 220 --><p class="noindent"> </p> - <table class="tabular" id="TBL-4"><colgroup id="TBL-4-1g"><col id="TBL-4-1"></colgroup><colgroup id="TBL-4-2g"><col id="TBL-4-2"></colgroup><tbody><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-1-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-1-1" style="white-space:nowrap; text-align:left;"> Signal processing </td><td class="td11" id="TBL-4-1-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">24-bit internal, 20-bit output </p></td> -</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-2-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-2-1" style="white-space:nowrap; text-align:left;"> Sampling rate </td><td class="td11" id="TBL-4-2-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">44.1 kHz, 48 kHz </p></td> -</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-3-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-3-1" style="white-space:nowrap; text-align:left;"> Connectors </td><td class="td11" id="TBL-4-3-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">R-BUS (Input only): DB-25<br class="newline">Digital output: ADAT Lightpipe (JIS F05 connector) </p></td> -</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-4-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-4-1" style="white-space:nowrap; text-align:left;"> Chipset </td><td class="td11" id="TBL-4-4-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">coolaudio V1401 (Alesis AL1401 equiv.) </p></td> -</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-5-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-5-1" style="white-space:nowrap; text-align:left;"> Rated current </td><td class="td11" id="TBL-4-5-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent"><span class="cmmi-10x-x-109"><</span>8 mA </p></td> -</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr id="TBL-4-6-" style="vertical-align:baseline;"><td class="td11" id="TBL-4-6-1" style="white-space:nowrap; text-align:left;"> Rated power </td><td class="td11" id="TBL-4-6-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent"><span class="cmmi-10x-x-109"><</span>0.04 W </p></td> + <table class="tabular" id="TBL-4"><colgroup id="TBL-4-1g"><col id="TBL-4-1"></colgroup><colgroup id="TBL-4-2g"><col id="TBL-4-2"></colgroup><tbody><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-1-"><td class="td11" id="TBL-4-1-1" style="white-space:nowrap; text-align:left;"> Signal processing </td><td class="td11" id="TBL-4-1-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">24-bit internal, 20-bit output </p></td> +</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-2-"><td class="td11" id="TBL-4-2-1" style="white-space:nowrap; text-align:left;"> Sampling rate </td><td class="td11" id="TBL-4-2-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">44.1 kHz, 48 kHz </p></td> +</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-3-"><td class="td11" id="TBL-4-3-1" style="white-space:nowrap; text-align:left;"> Connectors </td><td class="td11" id="TBL-4-3-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">R-BUS (Input only): DB-25<br class="newline">Digital output: ADAT Lightpipe (JIS F05 connector) </p></td> +</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-4-"><td class="td11" id="TBL-4-4-1" style="white-space:nowrap; text-align:left;"> Chipset </td><td class="td11" id="TBL-4-4-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent">coolaudio V1401 (Alesis AL1401 equiv.) </p></td> +</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-5-"><td class="td11" id="TBL-4-5-1" style="white-space:nowrap; text-align:left;"> Rated current </td><td class="td11" id="TBL-4-5-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent"><span class="cmmi-10x-x-109"><</span>8 mA </p></td> +</tr><tr class="hline"><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-4-6-"><td class="td11" id="TBL-4-6-1" style="white-space:nowrap; text-align:left;"> Rated power </td><td class="td11" id="TBL-4-6-2" style="white-space:normal; text-align:left;"> <!-- l. 232 --><p class="noindent"><span class="cmmi-10x-x-109"><</span>0.04 W </p></td> </tr><tr class="hline"><td><hr></td><td><hr></td></tr></tbody></table></div> <p><a id="x1-10001r10"></a></p> <h2 id="tocanch10" class="tvis"><span class="titlemark">11 </span> <a id="x1-1100011"></a>Appendices</h2> @@ -445,15 +445,15 @@ order. <div class="minipage"><div class="center"> <!-- l. 264 --><p class="noindent"> </p> -<div class="tabular"> <table class="tabular" id="TBL-5"><colgroup id="TBL-5-1g"><col id="TBL-5-1"></colgroup><colgroup id="TBL-5-2g"><col id="TBL-5-2"></colgroup><colgroup id="TBL-5-3g"><col id="TBL-5-3"></colgroup><tbody><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-1-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-1-1" style="white-space:nowrap; text-align:center;"> Designator </td><td class="td11" id="TBL-5-1-2" style="white-space:nowrap; text-align:center;"> Part </td><td class="td11" id="TBL-5-1-3" style="white-space:nowrap; text-align:center;"> Qty </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-2-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-2-1" style="white-space:nowrap; text-align:center;"> C1 </td><td class="td11" id="TBL-5-2-2" style="white-space:nowrap; text-align:center;"> 16V 100<span class="cmmi-10x-x-109">μ</span>F electrolytic </td><td class="td11" id="TBL-5-2-3" style="white-space:nowrap; text-align:center;"> 1 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-3-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-3-1" style="white-space:nowrap; text-align:center;"> C2, C3, C4 </td><td class="td11" id="TBL-5-3-2" style="white-space:nowrap; text-align:center;"> 50V 0.1<span class="cmmi-10x-x-109">μ</span>F ceramic </td><td class="td11" id="TBL-5-3-3" style="white-space:nowrap; text-align:center;"> 3 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-4-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-4-1" style="white-space:nowrap; text-align:center;"> CN1 </td><td class="td11" id="TBL-5-4-2" style="white-space:nowrap; text-align:center;"> Cliff FCR684208T </td><td class="td11" id="TBL-5-4-3" style="white-space:nowrap; text-align:center;"> 1 </td></tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-5-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-5-1" style="white-space:nowrap; text-align:center;"> D1 </td> <td class="td11" id="TBL-5-5-2" style="white-space:nowrap; text-align:center;"> 1N4002 </td> <td class="td11" id="TBL-5-5-3" style="white-space:nowrap; text-align:center;"> 1</td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-6-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-6-1" style="white-space:nowrap; text-align:center;"> D2 </td><td class="td11" id="TBL-5-6-2" style="white-space:nowrap; text-align:center;"> Red GaAsP / GaP LED 3mm <span class="footnote-mark"><a href="#fn1x2" id="fn1x2-bk"><sup class="textsuperscript">a</sup></a></span><a id="x1-14001f0"></a> </td><td class="td11" id="TBL-5-6-3" style="white-space:nowrap; text-align:center;"> 1 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-7-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-7-1" style="white-space:nowrap; text-align:center;"> J1 </td><td class="td11" id="TBL-5-7-2" style="white-space:nowrap; text-align:center;"> Adam Tech DB25-SL-25 <span class="footnote-mark"><a href="#fn2x2" id="fn2x2-bk"><sup class="textsuperscript">b</sup></a></span><a id="x1-14002f0"></a> </td><td class="td11" id="TBL-5-7-3" style="white-space:nowrap; text-align:center;"> 1 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-8-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-8-1" style="white-space:nowrap; text-align:center;"> R1 </td><td class="td11" id="TBL-5-8-2" style="white-space:nowrap; text-align:center;"> 1/4W 1k<span class="cmr-10x-x-109">Ω </span></td><td class="td11" id="TBL-5-8-3" style="white-space:nowrap; text-align:center;"> 1 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-9-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-9-1" style="white-space:nowrap; text-align:center;"> R2 </td><td class="td11" id="TBL-5-9-2" style="white-space:nowrap; text-align:center;"> 1/4W 2.2k<span class="cmr-10x-x-109">Ω </span></td><td class="td11" id="TBL-5-9-3" style="white-space:nowrap; text-align:center;"> 1 </td> -</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-10-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-10-1" style="white-space:nowrap; text-align:center;"> U1 </td><td class="td11" id="TBL-5-10-2" style="white-space:nowrap; text-align:center;"> SN74LS04N </td><td class="td11" id="TBL-5-10-3" style="white-space:nowrap; text-align:center;"> 1 </td></tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr id="TBL-5-11-" style="vertical-align:baseline;"><td class="td11" id="TBL-5-11-1" style="white-space:nowrap; text-align:center;"> U2 </td> <td class="td11" id="TBL-5-11-2" style="white-space:nowrap; text-align:center;"> coolaudio V1401 </td> <td class="td11" id="TBL-5-11-3" style="white-space:nowrap; text-align:center;"> 1</td> +<div class="tabular"> <table class="tabular" id="TBL-5"><colgroup id="TBL-5-1g"><col id="TBL-5-1"></colgroup><colgroup id="TBL-5-2g"><col id="TBL-5-2"></colgroup><colgroup id="TBL-5-3g"><col id="TBL-5-3"></colgroup><tbody><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-1-"><td class="td11" id="TBL-5-1-1" style="white-space:nowrap; text-align:center;"> Designator </td><td class="td11" id="TBL-5-1-2" style="white-space:nowrap; text-align:center;"> Part </td><td class="td11" id="TBL-5-1-3" style="white-space:nowrap; text-align:center;"> Qty </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-2-"><td class="td11" id="TBL-5-2-1" style="white-space:nowrap; text-align:center;"> C1 </td><td class="td11" id="TBL-5-2-2" style="white-space:nowrap; text-align:center;"> 16V 100<span class="cmmi-10x-x-109">μ</span>F electrolytic </td><td class="td11" id="TBL-5-2-3" style="white-space:nowrap; text-align:center;"> 1 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-3-"><td class="td11" id="TBL-5-3-1" style="white-space:nowrap; text-align:center;"> C2, C3, C4 </td><td class="td11" id="TBL-5-3-2" style="white-space:nowrap; text-align:center;"> 50V 0.1<span class="cmmi-10x-x-109">μ</span>F ceramic </td><td class="td11" id="TBL-5-3-3" style="white-space:nowrap; text-align:center;"> 3 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-4-"><td class="td11" id="TBL-5-4-1" style="white-space:nowrap; text-align:center;"> CN1 </td><td class="td11" id="TBL-5-4-2" style="white-space:nowrap; text-align:center;"> Cliff FCR684208T </td><td class="td11" id="TBL-5-4-3" style="white-space:nowrap; text-align:center;"> 1 </td></tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-5-"><td class="td11" id="TBL-5-5-1" style="white-space:nowrap; text-align:center;"> D1 </td> <td class="td11" id="TBL-5-5-2" style="white-space:nowrap; text-align:center;"> 1N4002 </td> <td class="td11" id="TBL-5-5-3" style="white-space:nowrap; text-align:center;"> 1</td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-6-"><td class="td11" id="TBL-5-6-1" style="white-space:nowrap; text-align:center;"> D2 </td><td class="td11" id="TBL-5-6-2" style="white-space:nowrap; text-align:center;"> Red GaAsP / GaP LED 3mm <span class="footnote-mark"><a id="fn1x2-bk" href="#fn1x2"><sup class="textsuperscript">a</sup></a></span><a id="x1-14001f0"></a> </td><td class="td11" id="TBL-5-6-3" style="white-space:nowrap; text-align:center;"> 1 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-7-"><td class="td11" id="TBL-5-7-1" style="white-space:nowrap; text-align:center;"> J1 </td><td class="td11" id="TBL-5-7-2" style="white-space:nowrap; text-align:center;"> Adam Tech DB25-SL-25 <span class="footnote-mark"><a id="fn2x2-bk" href="#fn2x2"><sup class="textsuperscript">b</sup></a></span><a id="x1-14002f0"></a> </td><td class="td11" id="TBL-5-7-3" style="white-space:nowrap; text-align:center;"> 1 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-8-"><td class="td11" id="TBL-5-8-1" style="white-space:nowrap; text-align:center;"> R1 </td><td class="td11" id="TBL-5-8-2" style="white-space:nowrap; text-align:center;"> 1/4W 1k<span class="cmr-10x-x-109">Ω </span></td><td class="td11" id="TBL-5-8-3" style="white-space:nowrap; text-align:center;"> 1 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-9-"><td class="td11" id="TBL-5-9-1" style="white-space:nowrap; text-align:center;"> R2 </td><td class="td11" id="TBL-5-9-2" style="white-space:nowrap; text-align:center;"> 1/4W 2.2k<span class="cmr-10x-x-109">Ω </span></td><td class="td11" id="TBL-5-9-3" style="white-space:nowrap; text-align:center;"> 1 </td> +</tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-10-"><td class="td11" id="TBL-5-10-1" style="white-space:nowrap; text-align:center;"> U1 </td><td class="td11" id="TBL-5-10-2" style="white-space:nowrap; text-align:center;"> SN74LS04N </td><td class="td11" id="TBL-5-10-3" style="white-space:nowrap; text-align:center;"> 1 </td></tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr><tr style="vertical-align:baseline;" id="TBL-5-11-"><td class="td11" id="TBL-5-11-1" style="white-space:nowrap; text-align:center;"> U2 </td> <td class="td11" id="TBL-5-11-2" style="white-space:nowrap; text-align:center;"> coolaudio V1401 </td> <td class="td11" id="TBL-5-11-3" style="white-space:nowrap; text-align:center;"> 1</td> </tr><tr class="hline"><td><hr></td><td><hr></td><td><hr></td></tr></tbody></table> </div></div></div> <p><a id="x1-14003r14"></a></p> @@ -471,19 +471,19 @@ the D1 and the metal shell of the DB-25 connector (GND). Check if anything pops. <h3 id="tocanch16" class="tvis"><span class="titlemark">11.2 </span> <a id="x1-170002"></a>Useful links</h3> <ul class="itemize1"> <li class="itemize"> - <!-- l. 298 --><p class="noindent">R-BUS project homepage: <a href="https://chrisoft.org/rbusif" class="url"><span class="ectt-1095">https://chrisoft.org/rbusif</span></a> + <!-- l. 298 --><p class="noindent">R-BUS project homepage: <a class="url" href="https://chrisoft.org/rbusif"><span class="ectt-1095">https://chrisoft.org/rbusif</span></a> </p></li> <li class="itemize"> - <!-- l. 299 --><p class="noindent">Project repository for this board: <a href="https://cgit.chrisoft.org/rbus-adat.git" class="url"><span class="ectt-1095">https://cgit.chrisoft.org/rbus-adat.git</span></a> + <!-- l. 299 --><p class="noindent">Project repository for this board: <a class="url" href="https://cgit.chrisoft.org/rbus-adat.git"><span class="ectt-1095">https://cgit.chrisoft.org/rbus-adat.git</span></a> </p></li> <li class="itemize"> - <!-- l. 300 --><p class="noindent">Online version of this manual: <br class="newline"><a href="https://chrisoft.org/blog/post/rbus-adat-m.html" class="url"><span class="ectt-1095">https://chrisoft.org/blog/post/rbus-adat-m.html</span></a> (html version)<br class="newline"><a href="https://filestorage.chrisoft.org/blog/data/rbus_adat_m.pdf" class="url"><span class="ectt-1095">https://filestorage.chrisoft.org/blog/data/rbus_adat_m.pdf</span></a> (pdf version)</p></li></ul> + <!-- l. 300 --><p class="noindent">Online version of this manual: <br class="newline"><a class="url" href="https://chrisoft.org/blog/post/rbus-adat-m.html"><span class="ectt-1095">https://chrisoft.org/blog/post/rbus-adat-m.html</span></a> (html version)<br class="newline"><a class="url" href="https://filestorage.chrisoft.org/blog/data/rbus_adat_m.pdf"><span class="ectt-1095">https://filestorage.chrisoft.org/blog/data/rbus_adat_m.pdf</span></a> (pdf version)</p></li></ul> <p><a id="x1-17001r17"></a></p> <h3 id="tocanch17" class="tvis"><span class="titlemark">11.3 </span> <a id="x1-180003"></a>Schematic</h3><div class="center"> <!-- l. 306 --><p class="noindent"> -</p><!-- l. 307 --><p class="noindent"> <img width="398" alt="PIC" src="//filestorage.chrisoft.org/blog/img/schr-.png" decoding="async"></p></div> +</p><!-- l. 307 --><p class="noindent"> <img alt="PIC" width="398" src="//filestorage.chrisoft.org/blog/img/schr-.png" decoding="async"></p></div> <p><a id="x1-18001r18"></a></p> @@ -491,17 +491,17 @@ the D1 and the metal shell of the DB-25 connector (GND). Check if anything pops. <!-- l. 312 --><p class="noindent">Front side </p> <div class="center"> <!-- l. 313 --><p class="noindent"> -</p><!-- l. 314 --><p class="noindent"> <img width="683" alt="PIC" src="//filestorage.chrisoft.org/blog/img/pcbfr-.png" decoding="async"></p></div> +</p><!-- l. 314 --><p class="noindent"> <img alt="PIC" width="683" src="//filestorage.chrisoft.org/blog/img/pcbfr-.png" decoding="async"></p></div> <!-- l. 317 --><p class="noindent">Back side </p> <div class="center"> <!-- l. 318 --><p class="noindent"> -</p><!-- l. 319 --><p class="noindent"> <img width="683" alt="PIC" src="//filestorage.chrisoft.org/blog/img/pcbbr-.png" decoding="async"></p></div> +</p><!-- l. 319 --><p class="noindent"> <img alt="PIC" width="683" src="//filestorage.chrisoft.org/blog/img/pcbbr-.png" decoding="async"></p></div> - <div class="footnotes"><!-- l. 272 --><p class="noindent"><span class="footnote-mark"><a href="#fn1x2-bk" id="fn1x2"><sup class="textsuperscript">a</sup></a></span><span class="ec-qplr-x-x-90">5mm used in prototypes</span></p> -<!-- l. 273 --><p class="noindent"><span class="footnote-mark"><a href="#fn2x2-bk" id="fn2x2"><sup class="textsuperscript">b</sup></a></span><span class="ec-qplr-x-x-90">Or any right angle DB-25 receptacle with 8.1mm backset spacing</span></p> </div> + <div class="footnotes"><!-- l. 272 --><p class="noindent"><span class="footnote-mark"><a id="fn1x2" href="#fn1x2-bk"><sup class="textsuperscript">a</sup></a></span><span class="ec-qplr-x-x-90">5mm used in prototypes</span></p> +<!-- l. 273 --><p class="noindent"><span class="footnote-mark"><a id="fn2x2" href="#fn2x2-bk"><sup class="textsuperscript">b</sup></a></span><span class="ec-qplr-x-x-90">Or any right angle DB-25 receptacle with 8.1mm backset spacing</span></p> </div> </div><br><hr> |