diff --git a/public/_sources/page1.rst.txt b/public/_sources/page1.rst.txt
index cd30402485874bf5cea7c3272c12b6e271e09b7d..4f59b6590ca2b5a14268a8b0165f442b2c4cc488 100644
--- a/public/_sources/page1.rst.txt
+++ b/public/_sources/page1.rst.txt
@@ -454,6 +454,8 @@ connections. Instead of having four cables connecting an electrode terminal to e
    :height: 300px
    :alt: alternate text
    :figclass: align-center
+   
+   Wire cabling for multiplexer and terminal screw connection
 
 the next figure provides an example of multiplexer relay connections for electrode no. 1: this electrode of multiplexer MUX A must be connected to electrode no. 1 of MUX B. Moreover, electrode no. 1 of MUX B 
 must be connected to electrode no. 1 of MUX N, which in turn must be connected to electrode no. 1 of MUX M. Lastly, electrode no. 1 of MUX M is connected to the terminal block. 
@@ -465,6 +467,12 @@ This operation must be repeated for all 32 electrodes.
    :height: 800px
    :alt: alternate text
    :figclass: align-center
+   
+   Example of a multiplexer connection to the screw terminal for electrode no. 1.
+ 
+.. warning::
+	The 16 channel relay cards exist in 5-V and 12-V , in the bottom figure we have 12-V cards that we will directly connect to the battery.
+	In case you bought 16 channel relay 5-V cards, you will need to add a DC/DC 12-V/5-V converter. You can use a STEP DOWN MODULE DC-DC (Velleman WPM404) and set the voltage to 5V with the potentiometer.
 
 Operating instruction
 *************************
diff --git a/public/page1.html b/public/page1.html
index 68b20df4920b6c76dc0949daee3e4e706ff7404f..d66e843d08e3a32006846f1c64b3c8fc0402e881 100644
--- a/public/page1.html
+++ b/public/page1.html
@@ -594,14 +594,21 @@ The next step consists of connecting the relay card inputs to the Raspberry Pi a
 <p>At this point, all that remains is to connect the electrodes of each multiplexer to a terminal block (Fig. 13). In our set-up, screw terminals assembled on a din rail were used.
 According to the chosen multiplexer configuration, all the relays of each multiplexer will be connected to an electrode and, consequently, each electrode will have four incoming
 connections. Instead of having four cables connecting an electrode terminal to each multiplexer, we recommend using the cable assembly shown in the following Figure.</p>
-<div class="align-center figure">
+<div class="align-center figure" id="id8">
 <a class="reference internal image-reference" href="_images/cable.jpg"><img alt="alternate text" src="_images/cable.jpg" style="width: 800px; height: 300px;" /></a>
+<p class="caption"><span class="caption-text">Wire cabling for multiplexer and terminal screw connection</span><a class="headerlink" href="#id8" title="Permalink to this image">¶</a></p>
 </div>
 <p>the next figure provides an example of multiplexer relay connections for electrode no. 1: this electrode of multiplexer MUX A must be connected to electrode no. 1 of MUX B. Moreover, electrode no. 1 of MUX B
 must be connected to electrode no. 1 of MUX N, which in turn must be connected to electrode no. 1 of MUX M. Lastly, electrode no. 1 of MUX M is connected to the terminal block.
 This operation must be repeated for all 32 electrodes.</p>
-<div class="align-center figure">
+<div class="align-center figure" id="id9">
 <a class="reference internal image-reference" href="_images/electrode_cable.jpg"><img alt="alternate text" src="_images/electrode_cable.jpg" style="width: 800px; height: 800px;" /></a>
+<p class="caption"><span class="caption-text">Example of a multiplexer connection to the screw terminal for electrode no. 1.</span><a class="headerlink" href="#id9" title="Permalink to this image">¶</a></p>
+</div>
+<div class="admonition warning">
+<p class="admonition-title">Warning</p>
+<p>The 16 channel relay cards exist in 5-V and 12-V , in the bottom figure we have 12-V cards that we will directly connect to the battery.
+In case you bought 16 channel relay 5-V cards, you will need to add a DC/DC 12-V/5-V converter. You can use a STEP DOWN MODULE DC-DC (Velleman WPM404) and set the voltage to 5V with the potentiometer.</p>
 </div>
 </div>
 <div class="section" id="operating-instruction">
@@ -652,8 +659,8 @@ are displayed on the screen. A measurement file is automatically created and nam
 <p class="admonition-title">Warning</p>
 <p>The list to evolve a little after the publication of the article, it is necessary to refer to this list</p>
 </div>
-<table class="colwidths-given docutils align-default" id="id8">
-<caption><span class="caption-text">Table Title</span><a class="headerlink" href="#id8" title="Permalink to this table">¶</a></caption>
+<table class="colwidths-given docutils align-default" id="id10">
+<caption><span class="caption-text">Table Title</span><a class="headerlink" href="#id10" title="Permalink to this table">¶</a></caption>
 <colgroup>
 <col style="width: 8%" />
 <col style="width: 18%" />
diff --git a/public/searchindex.js b/public/searchindex.js
index 4607e7df8386cde8419b8ce6a04c44ba7d5a6cd8..7389d42df5b1c9abef631d9eb7630af284834ea3 100644
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diff --git a/sphinx/build/doctrees/environment.pickle b/sphinx/build/doctrees/environment.pickle
index a0b26fa370315cf4842edf2e61acd1ea79c9ee85..3100390332529649f6a102e6b23d21a73cecdfcd 100644
Binary files a/sphinx/build/doctrees/environment.pickle and b/sphinx/build/doctrees/environment.pickle differ
diff --git a/sphinx/build/doctrees/page1.doctree b/sphinx/build/doctrees/page1.doctree
index 0c63db9bcb4038d7606175654209374f02134ecc..1a41379a691aec58fbae937e665c39c3f6cefeb7 100644
Binary files a/sphinx/build/doctrees/page1.doctree and b/sphinx/build/doctrees/page1.doctree differ
diff --git a/sphinx/build/html/_sources/page1.rst.txt b/sphinx/build/html/_sources/page1.rst.txt
index cd30402485874bf5cea7c3272c12b6e271e09b7d..4f59b6590ca2b5a14268a8b0165f442b2c4cc488 100644
--- a/sphinx/build/html/_sources/page1.rst.txt
+++ b/sphinx/build/html/_sources/page1.rst.txt
@@ -454,6 +454,8 @@ connections. Instead of having four cables connecting an electrode terminal to e
    :height: 300px
    :alt: alternate text
    :figclass: align-center
+   
+   Wire cabling for multiplexer and terminal screw connection
 
 the next figure provides an example of multiplexer relay connections for electrode no. 1: this electrode of multiplexer MUX A must be connected to electrode no. 1 of MUX B. Moreover, electrode no. 1 of MUX B 
 must be connected to electrode no. 1 of MUX N, which in turn must be connected to electrode no. 1 of MUX M. Lastly, electrode no. 1 of MUX M is connected to the terminal block. 
@@ -465,6 +467,12 @@ This operation must be repeated for all 32 electrodes.
    :height: 800px
    :alt: alternate text
    :figclass: align-center
+   
+   Example of a multiplexer connection to the screw terminal for electrode no. 1.
+ 
+.. warning::
+	The 16 channel relay cards exist in 5-V and 12-V , in the bottom figure we have 12-V cards that we will directly connect to the battery.
+	In case you bought 16 channel relay 5-V cards, you will need to add a DC/DC 12-V/5-V converter. You can use a STEP DOWN MODULE DC-DC (Velleman WPM404) and set the voltage to 5V with the potentiometer.
 
 Operating instruction
 *************************
diff --git a/sphinx/build/html/page1.html b/sphinx/build/html/page1.html
index 68b20df4920b6c76dc0949daee3e4e706ff7404f..d66e843d08e3a32006846f1c64b3c8fc0402e881 100644
--- a/sphinx/build/html/page1.html
+++ b/sphinx/build/html/page1.html
@@ -594,14 +594,21 @@ The next step consists of connecting the relay card inputs to the Raspberry Pi a
 <p>At this point, all that remains is to connect the electrodes of each multiplexer to a terminal block (Fig. 13). In our set-up, screw terminals assembled on a din rail were used.
 According to the chosen multiplexer configuration, all the relays of each multiplexer will be connected to an electrode and, consequently, each electrode will have four incoming
 connections. Instead of having four cables connecting an electrode terminal to each multiplexer, we recommend using the cable assembly shown in the following Figure.</p>
-<div class="align-center figure">
+<div class="align-center figure" id="id8">
 <a class="reference internal image-reference" href="_images/cable.jpg"><img alt="alternate text" src="_images/cable.jpg" style="width: 800px; height: 300px;" /></a>
+<p class="caption"><span class="caption-text">Wire cabling for multiplexer and terminal screw connection</span><a class="headerlink" href="#id8" title="Permalink to this image">¶</a></p>
 </div>
 <p>the next figure provides an example of multiplexer relay connections for electrode no. 1: this electrode of multiplexer MUX A must be connected to electrode no. 1 of MUX B. Moreover, electrode no. 1 of MUX B
 must be connected to electrode no. 1 of MUX N, which in turn must be connected to electrode no. 1 of MUX M. Lastly, electrode no. 1 of MUX M is connected to the terminal block.
 This operation must be repeated for all 32 electrodes.</p>
-<div class="align-center figure">
+<div class="align-center figure" id="id9">
 <a class="reference internal image-reference" href="_images/electrode_cable.jpg"><img alt="alternate text" src="_images/electrode_cable.jpg" style="width: 800px; height: 800px;" /></a>
+<p class="caption"><span class="caption-text">Example of a multiplexer connection to the screw terminal for electrode no. 1.</span><a class="headerlink" href="#id9" title="Permalink to this image">¶</a></p>
+</div>
+<div class="admonition warning">
+<p class="admonition-title">Warning</p>
+<p>The 16 channel relay cards exist in 5-V and 12-V , in the bottom figure we have 12-V cards that we will directly connect to the battery.
+In case you bought 16 channel relay 5-V cards, you will need to add a DC/DC 12-V/5-V converter. You can use a STEP DOWN MODULE DC-DC (Velleman WPM404) and set the voltage to 5V with the potentiometer.</p>
 </div>
 </div>
 <div class="section" id="operating-instruction">
@@ -652,8 +659,8 @@ are displayed on the screen. A measurement file is automatically created and nam
 <p class="admonition-title">Warning</p>
 <p>The list to evolve a little after the publication of the article, it is necessary to refer to this list</p>
 </div>
-<table class="colwidths-given docutils align-default" id="id8">
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diff --git a/sphinx/build/html/searchindex.js b/sphinx/build/html/searchindex.js
index 4607e7df8386cde8419b8ce6a04c44ba7d5a6cd8..7389d42df5b1c9abef631d9eb7630af284834ea3 100644
--- a/sphinx/build/html/searchindex.js
+++ b/sphinx/build/html/searchindex.js
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diff --git a/sphinx/source/page1.rst b/sphinx/source/page1.rst
index cd30402485874bf5cea7c3272c12b6e271e09b7d..4f59b6590ca2b5a14268a8b0165f442b2c4cc488 100644
--- a/sphinx/source/page1.rst
+++ b/sphinx/source/page1.rst
@@ -454,6 +454,8 @@ connections. Instead of having four cables connecting an electrode terminal to e
    :height: 300px
    :alt: alternate text
    :figclass: align-center
+   
+   Wire cabling for multiplexer and terminal screw connection
 
 the next figure provides an example of multiplexer relay connections for electrode no. 1: this electrode of multiplexer MUX A must be connected to electrode no. 1 of MUX B. Moreover, electrode no. 1 of MUX B 
 must be connected to electrode no. 1 of MUX N, which in turn must be connected to electrode no. 1 of MUX M. Lastly, electrode no. 1 of MUX M is connected to the terminal block. 
@@ -465,6 +467,12 @@ This operation must be repeated for all 32 electrodes.
    :height: 800px
    :alt: alternate text
    :figclass: align-center
+   
+   Example of a multiplexer connection to the screw terminal for electrode no. 1.
+ 
+.. warning::
+	The 16 channel relay cards exist in 5-V and 12-V , in the bottom figure we have 12-V cards that we will directly connect to the battery.
+	In case you bought 16 channel relay 5-V cards, you will need to add a DC/DC 12-V/5-V converter. You can use a STEP DOWN MODULE DC-DC (Velleman WPM404) and set the voltage to 5V with the potentiometer.
 
 Operating instruction
 *************************