From 7be51e5caf0c22789140f69d2b3e79c96f014a55 Mon Sep 17 00:00:00 2001
From: Arthur Grisel-Davy <grisel-davy@crans.org>
Date: Mon, 13 Nov 2023 18:42:16 -0500
Subject: [PATCH] update after email from NAI

---
 palitronica/bell/overview.typ  |  11 +-
 palitronica/bell/schematic.svg | 355 ++++++++++++++++-----------------
 2 files changed, 175 insertions(+), 191 deletions(-)

diff --git a/palitronica/bell/overview.typ b/palitronica/bell/overview.typ
index deaf47e..a69d221 100644
--- a/palitronica/bell/overview.typ
+++ b/palitronica/bell/overview.typ
@@ -35,11 +35,9 @@ footer: [
 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.
+The chassi of the VMC is an ELMA COTS 3u VPX Tower Enclosure.
+The chassi include a backpane and an integrated PSU that provides DC power to the boards.
+The PSU accepts from 90 to 264 VAC and inclued Power Factor Control technology (limit reactive power).
 
 #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.]
 
@@ -47,6 +45,7 @@ It also provides power to the boards --- although it is still unclear how precis
 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.
+This board does have a quad-core CPU so it might be procesing data.
 
 #text(fill:red)[Q: Info about the role of this card would be helpful in identifying the points of interest.]
 
@@ -55,4 +54,4 @@ 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.]
+#text(fill:red)[Q: Info about the role of this card would be helpful in identifying the points of interest. In particular this board can be equipped with up to 3 modules. Knowing which module is installed can help assessing the interest.]
diff --git a/palitronica/bell/schematic.svg b/palitronica/bell/schematic.svg
index 3fc1e9d..1680f5e 100644
--- a/palitronica/bell/schematic.svg
+++ b/palitronica/bell/schematic.svg
@@ -2,9 +2,9 @@
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