start palitronica/bell document

palitronica/bell/overview.typ

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+#let title = "Overview of the Bell System Architecture"
+
+
+#set page("us-letter",
+header: [
+    #set text(8pt)
+    #smallcaps[#title]
+    #h(1fr) Arthur Grisel-Davy for Palitronica Inc.
+  ],
+footer: [
+    #set align(right)
+    #set text(8pt)
+    #counter(page).display(
+      "1",
+    )
+  ]
+)
+
+#align(center)[#text(weight:"bold",size:20pt)[#title]]
+
+#v(2cm)
+#outline(indent: 1em)
+
+#pagebreak()
+= Schematic
+#align(center)[
+#figure(
+    image("schematic.svg",width:100%)
+)
+]
+
+#pagebreak()
+= Technical Information
+
+Here is the information that we have or suppose about the different components of the system.
+
+== Chassi
+The chassi of the VMC is a CC-VPX3-06-99.
+VPX stands for Virtual Path Cross-Connect and is a set of standards for connecting components, apparently common for products from defense contractors.
+VPX seems to be both a hardware format standard and a communication standard.
+The chassi is a VPX chassi as it offers to connect VPX-compatible boards.
+It also provides power to the boards --- although it is still unclear how precisely.
+
+#text(fill:red)[Q: It would be helpful to get a schematic or a photo of how the boards are installed in the chassi, and how they receive power.]
+
+== 68PPC2 SBC
+The board in the first slot of the chassi is a 68PPC2.
+This board is connected to the Mission Computer (via the Comm. Converter Board).
+It is unclear if this board processes some data or if it is only responsible for communication.
+
+#text(fill:red)[Q: Info about the role of this card would be helpful in identifying the points of interest.]
+
+== 68G5
+The second board, installed in slot 3, is a 68G5.
+The role of this board needs to be clarified. It is connected to the Software Control Module (SCM) but the role of both these components is unclear.
+
+
+#text(fill:red)[Q: Info about the role of this card would be helpful in identifying the points of interest.]