Improve global project (typos, enforce 80 columns whenever possible, diagrams) and finish 3.1

1 files changed, 1053 insertions, 0 deletions

diff --git a/pictures/db-25-backplane-connector.svg b/pictures/db-25-backplane-connector.svg
new file mode 100644
index 0000000..68f1bc0
--- /dev/null
+++ b/pictures/db-25-backplane-connector.svg
@@ -0,0 +1,1053 @@
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+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text52">20</text>
+  </g>
+  <!-- Pin 21 -->
+  <g
+     transform="translate(543.19603,182.04389)"
+     id="g54">
+    <line
+       x1="0"
+       y1="0"
+       x2="0"
+       y2="58"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="line52" />
+    <text
+       x="-5"
+       y="68"
+       transform="rotate(45,-5,68)"
+       fill="#000000"
+       font-size="12px"
+       font-weight="600"
+       id="text53">Stagger</text>
+    <circle
+       cx="0"
+       cy="0"
+       r="10"
+       fill="#ffffff"
+       stroke="#000000"
+       stroke-width="1.5"
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+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text54">21</text>
+  </g>
+  <!-- Pin 22 -->
+  <g
+     transform="translate(589.79603,182.04389)"
+     id="g56">
+    <line
+       x1="0"
+       y1="0"
+       x2="0"
+       y2="58"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="line54" />
+    <text
+       x="-5"
+       y="68"
+       transform="rotate(45,-5,68)"
+       fill="#000000"
+       font-size="12px"
+       font-style="italic"
+       id="text55">Reserved</text>
+    <circle
+       cx="0"
+       cy="0"
+       r="10"
+       fill="#ffffff"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="circle55" />
+    <text
+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text56">22</text>
+  </g>
+  <!-- Pin 23 -->
+  <g
+     transform="translate(636.49603,182.04389)"
+     id="g58">
+    <line
+       x1="0"
+       y1="0"
+       x2="0"
+       y2="58"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="line56" />
+    <text
+       x="-5"
+       y="68"
+       transform="rotate(45,-5,68)"
+       fill="#000000"
+       font-size="12px"
+       font-style="italic"
+       id="text57">Reserved</text>
+    <circle
+       cx="0"
+       cy="0"
+       r="10"
+       fill="#ffffff"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="circle57" />
+    <text
+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text58">23</text>
+  </g>
+  <!-- Pin 24 -->
+  <g
+     transform="translate(683.19603,182.04389)"
+     id="g60">
+    <line
+       x1="0"
+       y1="0"
+       x2="0"
+       y2="58"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="line58" />
+    <text
+       x="-5"
+       y="68"
+       transform="rotate(45,-5,68)"
+       fill="#000000"
+       font-size="12px"
+       font-style="italic"
+       id="text59">Reserved</text>
+    <circle
+       cx="0"
+       cy="0"
+       r="10"
+       fill="#ffffff"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="circle59" />
+    <text
+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text60">24</text>
+  </g>
+  <!-- Pin 25 -->
+  <g
+     transform="translate(729.79603,182.04389)"
+     id="g62">
+    <line
+       x1="0"
+       y1="0"
+       x2="0"
+       y2="58"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="line60" />
+    <text
+       x="-5"
+       y="68"
+       transform="rotate(45,-5,68)"
+       fill="#000000"
+       font-size="12px"
+       font-weight="600"
+       id="text61">Chassis Earth</text>
+    <circle
+       cx="0"
+       cy="0"
+       r="10"
+       fill="#ffffff"
+       stroke="#000000"
+       stroke-width="1.5"
+       id="circle61" />
+    <text
+       x="0"
+       y="4"
+       text-anchor="middle"
+       fill="#000000"
+       font-size="10px"
+       font-weight="bold"
+       id="text62">25</text>
+  </g>
+  <metadata
+     id="metadata63">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <cc:license
+           rdf:resource="http://creativecommons.org/licenses/by-sa/4.0/" />
+      </cc:Work>
+      <cc:License
+         rdf:about="http://creativecommons.org/licenses/by-sa/4.0/">
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Reproduction" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Distribution" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Notice" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Attribution" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#ShareAlike" />
+      </cc:License>
+    </rdf:RDF>
+  </metadata>
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