diff --git a/addons/hw_proxy/doc/_images/posbox_doc_schema.png b/addons/hw_proxy/doc/_images/posbox_doc_schema.png
new file mode 100644
index 00000000000..929675db9e8
Binary files /dev/null and b/addons/hw_proxy/doc/_images/posbox_doc_schema.png differ
diff --git a/addons/hw_proxy/doc/_images/posbox_doc_schema.svg b/addons/hw_proxy/doc/_images/posbox_doc_schema.svg
new file mode 100644
index 00000000000..92d02849cf0
--- /dev/null
+++ b/addons/hw_proxy/doc/_images/posbox_doc_schema.svg
@@ -0,0 +1,548 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="1600px"
+   height="1200px"
+   id="svg2985"
+   version="1.1"
+   inkscape:version="0.48.3.1 r9886"
+   sodipodi:docname="posbox_doc_schema.svg"
+   inkscape:export-filename="/home/fva/Code/openerp/posbox_doc_schema.png"
+   inkscape:export-xdpi="67.5"
+   inkscape:export-ydpi="67.5">
+  <defs
+     id="defs2987">
+    <marker
+       inkscape:stockid="DotL"
+       orient="auto"
+       refY="0.0"
+       refX="0.0"
+       id="DotL"
+       style="overflow:visible">
+      <path
+         id="path6730"
+         d="M -2.5,-1.0 C -2.5,1.7600000 -4.7400000,4.0 -7.5,4.0 C -10.260000,4.0 -12.5,1.7600000 -12.5,-1.0 C -12.5,-3.7600000 -10.260000,-6.0 -7.5,-6.0 C -4.7400000,-6.0 -2.5,-3.7600000 -2.5,-1.0 z "
+         style="fill-rule:evenodd;stroke:#000000;stroke-width:1.0pt"
+         transform="scale(0.8) translate(7.4, 1)" />
+    </marker>
+    <marker
+       inkscape:stockid="DotM"
+       orient="auto"
+       refY="0.0"
+       refX="0.0"
+       id="DotM"
+       style="overflow:visible">
+      <path
+         id="path6733"
+         d="M -2.5,-1.0 C -2.5,1.7600000 -4.7400000,4.0 -7.5,4.0 C -10.260000,4.0 -12.5,1.7600000 -12.5,-1.0 C -12.5,-3.7600000 -10.260000,-6.0 -7.5,-6.0 C -4.7400000,-6.0 -2.5,-3.7600000 -2.5,-1.0 z "
+         style="fill-rule:evenodd;stroke:#000000;stroke-width:1.0pt"
+         transform="scale(0.4) translate(7.4, 1)" />
+    </marker>
+    <pattern
+       inkscape:collect="always"
+       xlink:href="#Strips1_3"
+       id="pattern6512"
+       patternTransform="matrix(1.4070053,-1.4070053,10.196067,10.196067,0,0)" />
+    <pattern
+       inkscape:stockid="Stripes 1:3"
+       id="Strips1_3"
+       patternTransform="translate(0,0) scale(10,10)"
+       height="1"
+       width="4"
+       patternUnits="userSpaceOnUse"
+       inkscape:collect="always">
+      <rect
+         id="rect4622"
+         height="2"
+         width="1"
+         y="-0.5"
+         x="0"
+         style="fill:black;stroke:none" />
+    </pattern>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="1"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.45254834"
+     inkscape:cx="679.01909"
+     inkscape:cy="813.9637"
+     inkscape:current-layer="layer1"
+     inkscape:document-units="px"
+     showgrid="false"
+     inkscape:window-width="1920"
+     inkscape:window-height="991"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata2990">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer">
+    <g
+       id="g7313">
+      <g
+         transform="translate(0,35.355339)"
+         id="g6566">
+        <g
+           id="g6514"
+           transform="translate(-10.9375,-57.8125)">
+          <path
+             inkscape:connector-curvature="0"
+             id="path6489"
+             d="m 905,179.59375 -34.8125,31.34375 -118.78125,0 c -5.54,0 -10,4.46 -10,10 l 0,102.5 -157.5,0 c -16.62,0 -30,13.38 -30,30 l 0,632.3125 -27.4375,24.9375 33.25,44.2813 c 0.10609,0.1442 0.2039,0.2952 0.3125,0.4374 l 2.125,2.8126 0.21875,-0.125 c 5.44486,5.6076 13.06148,9.0937 21.53125,9.0937 l 463.43755,0 c 16.6199,0 30,-13.38 30,-30 l 0,-683.75 c 0,-10.90688 -5.7475,-20.40588 -14.4063,-25.65625 l -41.125,-31 -27.3125,26.65625 -45.28125,0 0,-102.5 c 0,-2.89877 -1.22955,-5.48931 -3.1875,-7.3125 l 0.25,-0.375 L 905,179.59375 z"
+             style="opacity:0.25;fill:url(#pattern6512);fill-opacity:1;stroke:none" />
+          <g
+             transform="translate(-2.2097087,75.130096)"
+             id="g3823">
+            <g
+               id="g3847">
+              <rect
+                 ry="5.274591"
+                 y="106.16312"
+                 x="711.8349"
+                 height="151.06096"
+                 width="194.27489"
+                 id="rect3843"
+                 style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:8.48901749;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+                 rx="5.274591" />
+              <rect
+                 rx="5.274591"
+                 style="fill:none;stroke:#000000;stroke-width:2;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+                 id="rect3845"
+                 width="175.41872"
+                 height="151.06096"
+                 x="721.263"
+                 y="106.16312"
+                 ry="5.274591" />
+            </g>
+            <rect
+               rx="5.274591"
+               ry="5.274591"
+               y="869.83844"
+               x="746.01172"
+               height="110.99157"
+               width="131.81378"
+               id="rect3765"
+               style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:8.48901749;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+            <rect
+               style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:8.48901749;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+               id="rect6618"
+               width="125.18465"
+               height="53.539146"
+               x="938.25635"
+               y="571.52777"
+               ry="5.274591"
+               rx="5.274591" />
+            <rect
+               rx="34.723557"
+               style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:8;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+               id="rect2993"
+               width="509.11688"
+               height="730.677"
+               x="525.61603"
+               y="217.12157"
+               ry="34.723557" />
+            <rect
+               rx="21.787001"
+               ry="21.787001"
+               y="235.37366"
+               x="543.0672"
+               height="694.12708"
+               width="474.21454"
+               id="rect3763"
+               style="fill:none;stroke:#000000;stroke-width:1.99425566;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+            <rect
+               style="fill:none;stroke:#000000;stroke-width:1.99425554;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+               id="rect3767"
+               width="160.64433"
+               height="9.1270761"
+               x="562.84052"
+               y="740.37366"
+               rx="5.3000002"
+               ry="5.3000002" />
+            <rect
+               ry="5.3000002"
+               rx="5.2999997"
+               y="667.30597"
+               x="828.00549"
+               height="9.1270761"
+               width="73.434502"
+               id="rect3769"
+               style="fill:none;stroke:#000000;stroke-width:1.99399996;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+            <rect
+               ry="5.3000002"
+               rx="5.3000002"
+               y="313.75256"
+               x="693.65527"
+               height="9.1270761"
+               width="160.64433"
+               id="rect3771"
+               style="fill:none;stroke:#000000;stroke-width:1.99425554;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+            <g
+               id="g3783">
+              <rect
+                 ry="5.3000002"
+                 rx="5.3000002"
+                 y="245.39903"
+                 x="962.35583"
+                 height="271.93509"
+                 width="43.971706"
+                 id="rect3773"
+                 style="fill:none;stroke:#000000;stroke-width:1.99425554;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+              <rect
+                 ry="5.3000002"
+                 rx="5.3000002"
+                 y="374.20874"
+                 x="952.03491"
+                 height="7.0710678"
+                 width="21.213203"
+                 id="rect3775"
+                 style="fill:#ffffff;fill-opacity:1;stroke:none" />
+              <rect
+                 style="fill:#ffffff;fill-opacity:1;stroke:none"
+                 id="rect3777"
+                 width="21.213203"
+                 height="7.0710678"
+                 x="992.86823"
+                 y="373.3754"
+                 rx="5.3000002"
+                 ry="5.3000002" />
+              <rect
+                 transform="matrix(0,-1,1,0,0,0)"
+                 ry="5.3000002"
+                 rx="5.3000002"
+                 y="981.60596"
+                 x="-260.01752"
+                 height="7.0710678"
+                 width="21.213203"
+                 id="rect3779"
+                 style="fill:#ffffff;fill-opacity:1;stroke:none" />
+              <rect
+                 style="fill:#ffffff;fill-opacity:1;stroke:none"
+                 id="rect3781"
+                 width="21.213203"
+                 height="7.0710678"
+                 x="-526.6842"
+                 y="981.60596"
+                 rx="5.3000002"
+                 ry="5.3000002"
+                 transform="matrix(0,-1,1,0,0,0)" />
+            </g>
+            <path
+               inkscape:connector-curvature="0"
+               style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:2;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+               d="m 958.1875,822.25 c -9.01707,3.59482 -15.375,12.41301 -15.375,22.71875 0,13.50563 10.93187,24.46875 24.4375,24.46875 13.50563,0 24.46875,-10.96312 24.46875,-24.46875 0,-10.17788 -6.2141,-18.91637 -15.0625,-22.59375 l 0,8.8125 c 4.63325,2.9517 7.6875,8.02222 7.6875,13.78125 0,9.11223 -7.65608,16.5 -17.09375,16.5 -9.43767,0 -17.0625,-7.38777 -17.0625,-16.5 0,-5.88681 3.20248,-11.04837 8,-13.96875 l 0,-8.75 z"
+               id="path3792" />
+            <g
+               id="g3818"
+               transform="translate(0,-1.767767)">
+              <rect
+                 ry="5.3000002"
+                 rx="5.2999992"
+                 y="879.66095"
+                 x="943.13324"
+                 height="8.7558908"
+                 width="46.827415"
+                 id="rect3794"
+                 style="fill:none;stroke:#000000;stroke-width:1.99399996;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+              <rect
+                 style="fill:none;stroke:#000000;stroke-width:1.99399996;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+                 id="rect3798"
+                 width="46.827415"
+                 height="8.7558908"
+                 x="943.13324"
+                 y="895.68982"
+                 rx="5.2999992"
+                 ry="5.3000002" />
+              <rect
+                 ry="5.3000002"
+                 rx="5.2999992"
+                 y="910.22754"
+                 x="943.13324"
+                 height="8.7558908"
+                 width="46.827415"
+                 id="rect3800"
+                 style="fill:none;stroke:#000000;stroke-width:1.99399996;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+            </g>
+            <rect
+               ry="5.3000002"
+               rx="5.2999992"
+               y="963.05292"
+               x="-845.58075"
+               height="8.7558908"
+               width="32.390652"
+               id="rect3812"
+               style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.99400008;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+               transform="matrix(0,-1,1,0,0,0)" />
+          </g>
+        </g>
+        <g
+           id="g6559"
+           transform="translate(0,-7.7339804)">
+          <path
+             transform="matrix(1,0,0,0.85333333,0,117.03125)"
+             d="m 1119.5313,856.64062 c 0,5.82488 -4.1974,10.54688 -9.375,10.54688 -5.1777,0 -9.375,-4.722 -9.375,-10.54688 0,-5.82487 4.1973,-10.54687 9.375,-10.54687 5.1776,0 9.375,4.722 9.375,10.54687 z"
+             sodipodi:ry="10.546875"
+             sodipodi:rx="9.375"
+             sodipodi:cy="856.64062"
+             sodipodi:cx="1110.1562"
+             id="path6539"
+             style="fill:#00fd28;fill-opacity:1;stroke:#000000;stroke-width:2.16506362;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+             sodipodi:type="arc" />
+          <path
+             sodipodi:type="arc"
+             style="fill:#ff0d0d;fill-opacity:1;stroke:#000000;stroke-width:2.16506362;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+             id="path6541"
+             sodipodi:cx="1110.1562"
+             sodipodi:cy="856.64062"
+             sodipodi:rx="9.375"
+             sodipodi:ry="10.546875"
+             d="m 1119.5313,856.64062 c 0,5.82488 -4.1974,10.54688 -9.375,10.54688 -5.1777,0 -9.375,-4.722 -9.375,-10.54688 0,-5.82487 4.1973,-10.54687 9.375,-10.54687 5.1776,0 9.375,4.722 9.375,10.54687 z"
+             transform="matrix(1,0,0,0.85333333,0,141.44531)" />
+          <path
+             transform="matrix(1,0,0,0.85333333,0,165.85937)"
+             d="m 1119.5313,856.64062 c 0,5.82488 -4.1974,10.54688 -9.375,10.54688 -5.1777,0 -9.375,-4.722 -9.375,-10.54688 0,-5.82487 4.1973,-10.54687 9.375,-10.54687 5.1776,0 9.375,4.722 9.375,10.54687 z"
+             sodipodi:ry="10.546875"
+             sodipodi:rx="9.375"
+             sodipodi:cy="856.64062"
+             sodipodi:cx="1110.1562"
+             id="path6543"
+             style="fill:#00fd28;fill-opacity:1;stroke:#000000;stroke-width:2.16506362;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+             sodipodi:type="arc" />
+          <path
+             sodipodi:type="arc"
+             style="fill:#00fd28;fill-opacity:1;stroke:#000000;stroke-width:2.16506362;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+             id="path6545"
+             sodipodi:cx="1110.1562"
+             sodipodi:cy="856.64062"
+             sodipodi:rx="9.375"
+             sodipodi:ry="10.546875"
+             d="m 1119.5313,856.64062 c 0,5.82488 -4.1974,10.54688 -9.375,10.54688 -5.1777,0 -9.375,-4.722 -9.375,-10.54688 0,-5.82487 4.1973,-10.54687 9.375,-10.54687 5.1776,0 9.375,4.722 9.375,10.54687 z"
+             transform="matrix(1,0,0,0.85333333,0,190.27344)" />
+          <path
+             transform="matrix(1,0,0,0.85333333,0,214.6875)"
+             d="m 1119.5313,856.64062 c 0,5.82488 -4.1974,10.54688 -9.375,10.54688 -5.1777,0 -9.375,-4.722 -9.375,-10.54688 0,-5.82487 4.1973,-10.54687 9.375,-10.54687 5.1776,0 9.375,4.722 9.375,10.54687 z"
+             sodipodi:ry="10.546875"
+             sodipodi:rx="9.375"
+             sodipodi:cy="856.64062"
+             sodipodi:cx="1110.1562"
+             id="path6547"
+             style="fill:#fff90d;fill-opacity:1;stroke:#000000;stroke-width:2.16506362;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+             sodipodi:type="arc" />
+        </g>
+      </g>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6598"
+         y="178.8759"
+         x="514.01447"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="178.8759"
+           x="514.01447"
+           id="tspan6600"
+           sodipodi:role="line">2A Power</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         x="724.2699"
+         y="127.21583"
+         id="text6602"
+         sodipodi:linespacing="125%"><tspan
+           sodipodi:role="line"
+           id="tspan6604"
+           x="724.2699"
+           y="127.21583"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans">SD Card</tspan></text>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6606"
+         y="626.60999"
+         x="319.89322"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="626.60999"
+           x="319.89322"
+           id="tspan6608"
+           sodipodi:role="line">HDMI</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         x="761.83496"
+         y="1097.278"
+         id="text6610"
+         sodipodi:linespacing="125%"><tspan
+           sodipodi:role="line"
+           id="tspan6612"
+           x="761.83496"
+           y="1097.278"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans">USB</tspan></text>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6614"
+         y="1097.278"
+         x="596.10681"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="1097.278"
+           x="596.10681"
+           id="tspan6616"
+           sodipodi:role="line">RJ45</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         x="1135.8894"
+         y="660.90717"
+         id="text6620"
+         sodipodi:linespacing="125%"><tspan
+           sodipodi:role="line"
+           id="tspan6622"
+           x="1135.8894"
+           y="660.90717"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans">Composite</tspan></text>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6624"
+         y="774.18842"
+         x="1135.8894"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="774.18842"
+           x="1135.8894"
+           id="tspan6626"
+           sodipodi:role="line">Audio</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         x="1135.8894"
+         y="774.18842"
+         id="text6628"
+         sodipodi:linespacing="125%"><tspan
+           sodipodi:role="line"
+           id="tspan6630"
+           x="1135.8894"
+           y="774.18842"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans">Audio</tspan></text>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6632"
+         y="891.37592"
+         x="1212.4519"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="891.37592"
+           x="1212.4519"
+           id="tspan6634"
+           sodipodi:role="line">Ready</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         x="1212.4519"
+         y="940.45667"
+         id="text6636"
+         sodipodi:linespacing="125%"><tspan
+           sodipodi:role="line"
+           id="tspan6638"
+           x="1212.4519"
+           y="940.45667"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans">Power</tspan></text>
+      <text
+         sodipodi:linespacing="125%"
+         id="text6640"
+         y="986.97278"
+         x="1212.4519"
+         style="font-size:36.98903275px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+         xml:space="preserve"><tspan
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
+           y="986.97278"
+           x="1212.4519"
+           id="tspan6642"
+           sodipodi:role="line">Network</tspan></text>
+      <path
+         inkscape:connector-curvature="0"
+         id="path6663"
+         d="m 437.5,614.15728 54.6875,0"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)" />
+      <path
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 601.86625,199.79103 0,54.6875"
+         id="path7295"
+         inkscape:connector-curvature="0" />
+      <path
+         inkscape:connector-curvature="0"
+         id="path7297"
+         d="m 1113.1075,650.87603 -54.6875,0"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)" />
+      <path
+         sodipodi:nodetypes="cc"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 1113.1075,761.81353 -76.5625,0"
+         id="path7299"
+         inkscape:connector-curvature="0" />
+      <path
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 1192.657,876.26632 -54.6875,0"
+         id="path7301"
+         inkscape:connector-curvature="0" />
+      <path
+         sodipodi:nodetypes="cc"
+         inkscape:connector-curvature="0"
+         id="path7303"
+         d="m 1192.657,927.08963 -54.6875,-27.62136"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)" />
+      <path
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 1192.657,974.04593 -54.6875,0"
+         id="path7305"
+         inkscape:connector-curvature="0" />
+      <path
+         sodipodi:nodetypes="cc"
+         inkscape:connector-curvature="0"
+         id="path7307"
+         d="m 1192.657,974.04593 -54.6875,-24.85922"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)" />
+      <path
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 1192.657,974.04593 -54.6875,-49.16602"
+         id="path7309"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cc" />
+      <path
+         sodipodi:nodetypes="cc"
+         style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#DotL)"
+         d="m 630.03792,1053.883 0,-32.0313"
+         id="path7311"
+         inkscape:connector-curvature="0" />
+    </g>
+  </g>
+</svg>
diff --git a/addons/hw_proxy/doc/index.rst b/addons/hw_proxy/doc/index.rst
index c44f9c870bc..b5bbf71a2ab 100644
--- a/addons/hw_proxy/doc/index.rst
+++ b/addons/hw_proxy/doc/index.rst
@@ -26,6 +26,10 @@ You will need :
 Setup
 -----
 
+.. image:: _images/posbox_doc_schema.png
+    :width: 100%
+    :align: center
+
 1) Power the PosBox.
 ~~~~~~~~~~~~~~~~~~~~
 
@@ -167,7 +171,8 @@ database settings:
 
 ::
 
-    $ ./server/openerp-server --addons-path=addons,web/addons --db-filter='^posbox$' --xmlrpc-port=8069 -d posbox
+    $ ./server/openerp-server --addons-path=addons,web/addons --db-filter='^posbox$' \
+            --xmlrpc-port=8069 -d posbox
 
 5) Check that everything works
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~