From: Jan Michel <j.michel@gsi.de>
Date: Fri, 5 Jun 2015 09:51:11 +0000 (+0200)
Subject: added picture of trb3sc patch
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=a35f4ffaa86d301e0d38c86874c9c991e0d45622;p=daqdocu.git

added picture of trb3sc patch
---

diff --git a/trb3/Trb3scBasics.tex b/trb3/Trb3scBasics.tex
index 28131a2..6ad1242 100644
--- a/trb3/Trb3scBasics.tex
+++ b/trb3/Trb3scBasics.tex
@@ -102,10 +102,18 @@ By default, the use of Serdes channels is as follows:
 The TrbNet uplink (either Sfp or backplane) is synchronous, i.e. no clock tolerance compensation is enabled. Hence, both boards connected with the link must share a common clock source. For low-accuracy applications, the clock can be recovered from the optical link. In this case, no additional clock distribution is needed. If running in a crate, clock recovery is available, but not necessary as the backplane distributes a clock signal to all boards connected.
 
 \subsubsection{Modifications}
+   \begin{figure}
+      \begin{center}
+         \includegraphics[width=0.7\textwidth]{figures/trb3scpatch.png}
+         \caption[Trb3sc Patch]{Trb3sc patch to display status of clock input switch}
+         \label{fig:trb3scpatch}
+      \end{center}
+   \end{figure}
+
 The following changes compared to the original schematics are to be made:
 \begin{description*}
   \item [R12, R14] 270 Ohm, LED is too dim
   \item [R13, R15] 680 Ohm, LED is too dim
   \item [R16, R17] 680 Ohm, LED is too bright
-  \item [Patchwire] Disconnect R14 from 2.5V (rotate by 90°), patchwire to Pin 2 of switch - green LED shows status of clock select
+  \item [Patchwire] Disconnect R14 from 2.5V (rotate by 90°), patchwire to Pin 2 of switch - green LED shows status of clock select. See picture.
 \end{description*}
\ No newline at end of file
diff --git a/trb3/figures/trb3scpatch.png b/trb3/figures/trb3scpatch.png
new file mode 100644
index 0000000..56a35f3
Binary files /dev/null and b/trb3/figures/trb3scpatch.png differ