<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.2.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0.762" x2="18.5676" y2="0.762" width="0" layer="20"/>
<wire x1="18.5676" y1="0.762" x2="18.5676" y2="27.676" width="0" layer="20"/>
<wire x1="18.5676" y1="27.676" x2="0" y2="27.676" width="0" layer="20"/>
<wire x1="0" y1="27.676" x2="0" y2="0.762" width="0" layer="20"/>
<text>+</text>
<text>+</text>
<text>G</text>
<text>G</text>
<text>OPTO-C</text>
<text>sfx</text>
<text>SI</text>
<text>SO</text>
<text>TO</text>
<text>TI</text>
<text>+</text>
<text>G</text>
<text>I</text>
<text>O</text>
</plain>
<libraries>
<library name="optical">
<packages>
<package name="DIP6">
</package>
</packages>
</library>
<library name="switches">
<packages>
<package name="DPDT.MINI1">
<description>&lt;b&gt;Mini Footswitch, PC Mount&lt;/b&gt;
&lt;br&gt;
Alpha  SF12011F-0202: &lt;a href="http://smallbear-electronics.mybigcommerce.com/alpha-107-sf12011-l-dpdt/"&gt;http://smallbear-electronics.mybigcommerce.com/alpha-107-sf12011-l-dpdt/&lt;/a&gt;</description>
</package>
</packages>
</library>
<library name="diodes">
<packages>
<package name="3MM_1">
</package>
<package name="DO41-2">
<description>&lt;b&gt;DO-41 0.2" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="supply pins">
<packages>
<package name="PAD2">
<description>&lt;b&gt;Round Pad (no label) - 76mil Diameter, 39mil Drill&lt;b&gt;</description>
</package>
<package name="PAD4">
<description>&lt;b&gt;Square (no label) - 76mil Diameter, 39mil Drill&lt;b&gt;</description>
</package>
</packages>
</library>
<library name="resistors">
<packages>
<package name="0.3&quot;.B">
<description>0.3"  (7.62mm) lead spacing, 1/4W (flat)</description>
</package>
</packages>
</library>
<library name="capacitors-film">
<description>&lt;b&gt;Capacitors, Ceramic&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;very small capacitances: 1 - 1000pF
&lt;/ul&gt;</description>
<packages>
<package name="BOX_SMALL">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="D1" library="diodes" package="3MM_1" value="LED.2">
<attribute name="NAME"/>
</element>
<element name="SW1" library="switches" package="DPDT.MINI1" value="">
<attribute name="NAME"/>
</element>
<element name="H11F1" library="optical" package="DIP6" value="">
<attribute name="NAME"/>
</element>
<element name="U$2" library="supply pins" package="PAD2" value="PADS.RND_NL"/>
<element name="U$1" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$3" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$4" library="supply pins" package="PAD2" value="PADS.RND_NL"/>
<element name="U$5" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$6" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$7" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$8" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$9" library="supply pins" package="PAD2" value="PADS.RND_NL"/>
<element name="U$10" library="supply pins" package="PAD2" value="PADS.RND_NL"/>
<element name="U$11" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="U$12" library="supply pins" package="PAD4" value="PADS.SQR_NL"/>
<element name="R1" library="resistors" package="0.3&quot;.B" value="CLR"/>
<element name="C1" library="capacitors-film" package="BOX_SMALL" value="220nF"/>
<element name="D2" library="diodes" package="DO41-2" value="1N4001"/>
</elements>
<signals>
<signal name="+9V">
<contactref element="H11F1" pad="1"/>
<contactref element="U$6" pad="P$1"/>
<contactref element="U$7" pad="P$1"/>
<contactref element="U$8" pad="P$1"/>
<contactref element="D2" pad="C"/>
</signal>
<signal name="N$1">
<contactref element="H11F1" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="D1" pad="A"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="D1" pad="K"/>
<contactref element="SW1" pad="A3"/>
</signal>
<signal name="GND">
<contactref element="U$1" pad="P$1"/>
<contactref element="U$3" pad="P$1"/>
<contactref element="SW1" pad="A2"/>
<contactref element="U$5" pad="P$1"/>
<contactref element="U$12" pad="P$1"/>
<contactref element="U$11" pad="P$1"/>
<contactref element="C1" pad="2"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="IN">
<contactref element="SW1" pad="B1"/>
<contactref element="H11F1" pad="6"/>
<contactref element="U$2" pad="P$1"/>
</signal>
<signal name="OUT">
<contactref element="SW1" pad="B2"/>
<contactref element="U$4" pad="P$1"/>
</signal>
<signal name="EIN">
<contactref element="SW1" pad="A1"/>
<contactref element="H11F1" pad="4"/>
<contactref element="U$9" pad="P$1"/>
</signal>
<signal name="EOUT">
<contactref element="SW1" pad="B3"/>
<contactref element="U$10" pad="P$1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
