<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<wire x1="103.34" y1="0.64" x2="103.34" y2="73.01" width="0" layer="20"/>
<wire x1="103.34" y1="73.01" x2="0.8" y2="73.01" width="0" layer="20"/>
<wire x1="0.8" y1="73.01" x2="0.8" y2="0.64" width="0" layer="20"/>
<wire x1="0.8" y1="0.64" x2="103.34" y2="0.64" width="0" layer="20"/>
<text>RS232-Current Loop 20mA (c)2006 CEMorris</text>
<text>RX, TX: J1-2 = passive, J1-3 &amp; J2-4 = active</text>
</plain>
<libraries>
<library name="rcl">
<packages>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
<package name="P0817V">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0817, grid 6.35 mm</description>
</package>
<package name="E7,5-18">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 7.62 mm, diameter 18 mm</description>
</package>
<package name="B45181A">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
body 5 x 5 mm, rectangle, grid 2.54 mm</description>
</package>
</packages>
</library>
<library name="optocoupler">
<packages>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="con-subd">
<packages>
<package name="M25H">
<description>&lt;b&gt;SUB-D&lt;/b&gt;</description>
</package>
<package name="F09H">
<description>&lt;b&gt;SUB-D&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="rectifier">
<packages>
<package name="RB1A">
<description>&lt;b&gt;RECTIFIER&lt;/b&gt;&lt;p&gt;
1 A</description>
</package>
</packages>
</library>
<library name="transistor-npn">
<packages>
<package name="TO92">
<description>&lt;b&gt;TO 92&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="DO35-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 10.16 mm</description>
</package>
<package name="DO41Z10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2.54 mm, horizontal, grid 10.16 mm</description>
</package>
</packages>
</library>
<library name="jumper">
<packages>
<package name="JP2">
<description>&lt;b&gt;JUMPER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="dc-dc-converter">
<packages>
<package name="NMA">
<description>&lt;b&gt;DC-DC CONVERTER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="holes">
<packages>
<package name="3,3">
<description>&lt;b&gt;MOUNTING HOLE&lt;/b&gt; 3.3 mm with drill center</description>
</package>
</packages>
</library>
<library name="dec-con">
<description>DEC Edge Connectors and Parts</description>
<packages>
<package name="JP2Q">
<description>&lt;b&gt;JUMPER&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="OK1" library="optocoupler" package="DIL16" value="PS2501-4A">
<attribute name="OC_NEWARK" value="88K1954"/>
<attribute name="MPN" value="ILQ1"/>
<attribute name="MF" value="VISHAY/TELEFUNKEN"/>
<attribute name="OC_FARNELL" value="1469501"/>
</element>
<element name="R5" library="rcl" package="0207/10" value="5K1"/>
<element name="Q1" library="transistor-npn" package="TO92" value="2N3904"/>
<element name="D1" library="diode" package="DO35-10" value="1N4148"/>
<element name="R1" library="rcl" package="0207/10" value="5K1"/>
<element name="R2" library="rcl" package="0207/10" value="470"/>
<element name="B3" library="rectifier" package="RB1A" value="100V 1A"/>
<element name="DC1" library="dc-dc-converter" package="NMA" value="48V in">
<attribute name="OC_NEWARK" value="61K3064"/>
<attribute name="MPN" value="NMA0515SC"/>
<attribute name="MF" value="C &amp; D TECHNOLOGIES, INC"/>
<attribute name="OC_FARNELL" value="1021434"/>
</element>
<element name="D3" library="diode" package="DO41Z10" value="51V 1W"/>
<element name="D2" library="diode" package="DO41Z10" value="68V"/>
<element name="U$1" library="holes" package="3,3" value=""/>
<element name="U$2" library="holes" package="3,3" value=""/>
<element name="U$3" library="holes" package="3,3" value=""/>
<element name="U$4" library="holes" package="3,3" value=""/>
<element name="D4" library="diode" package="DO41Z10" value="68V"/>
<element name="B4" library="rectifier" package="RB1A" value="100V 1A"/>
<element name="R7" library="rcl" package="0207/10" value="100"/>
<element name="R8" library="rcl" package="0207/10" value="470"/>
<element name="Q3" library="transistor-npn" package="TO92" value="2N3904"/>
<element name="R9" library="rcl" package="0207/10" value="5K1"/>
<element name="D5" library="diode" package="DO35-10" value="1N4148"/>
<element name="DC2" library="dc-dc-converter" package="NMA" value="48V in">
<attribute name="OC_NEWARK" value="61K3064"/>
<attribute name="MPN" value="NMA0515SC"/>
<attribute name="MF" value="C &amp; D TECHNOLOGIES, INC"/>
<attribute name="OC_FARNELL" value="1021434"/>
</element>
<element name="DC3" library="dc-dc-converter" package="NMA" value="48V in">
<attribute name="OC_NEWARK" value="61K3064"/>
<attribute name="MPN" value="NMA0515SC"/>
<attribute name="MF" value="C &amp; D TECHNOLOGIES, INC"/>
<attribute name="OC_FARNELL" value="1021434"/>
</element>
<element name="R12" library="rcl" package="P0817V" value="680 1W"/>
<element name="TX" library="dec-con" package="JP2Q" value=""/>
<element name="RX" library="dec-con" package="JP2Q" value=""/>
<element name="D6" library="diode" package="DO41Z10" value="51V 1W"/>
<element name="R3" library="rcl" package="P0817V" value="680 1W"/>
<element name="D7" library="diode" package="DO41Z10" value="51V 1W"/>
<element name="R4" library="rcl" package="P0817V" value="680 1W"/>
<element name="R6" library="rcl" package="0207/10" value="5K1"/>
<element name="R13" library="rcl" package="0207/10" value="5K1"/>
<element name="RS-232" library="con-subd" package="M25H" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="R14" library="rcl" package="P0817V" value="500 1W"/>
<element name="R15" library="rcl" package="P0817V" value="500 1W"/>
<element name="R16" library="rcl" package="P0817V" value="500 1W"/>
<element name="R17" library="rcl" package="P0817V" value="500 1W"/>
<element name="JP1" library="jumper" package="JP2" value="DSR - CTS"/>
<element name="TTY" library="con-subd" package="F09H" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="D8" library="diode" package="DO35-10" value="1N4148"/>
<element name="C1" library="rcl" package="E7,5-18" value="470uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="rcl" package="B45181A" value="10"/>
<element name="C3" library="rcl" package="B45181A" value="10"/>
</elements>
<signals>
<signal name="GND">
<contactref element="D1" pad="A"/>
<contactref element="Q1" pad="3"/>
<contactref element="OK1" pad="2"/>
<contactref element="DC1" pad="5"/>
<contactref element="D5" pad="A"/>
<contactref element="Q3" pad="3"/>
<contactref element="RS-232" pad="7"/>
<contactref element="C2" pad="-"/>
<contactref element="C3" pad="+"/>
</signal>
<signal name="RX-EIA">
<contactref element="R5" pad="1"/>
<contactref element="OK1" pad="14"/>
<contactref element="RS-232" pad="3"/>
</signal>
<signal name="TX-EIA">
<contactref element="R1" pad="1"/>
<contactref element="RS-232" pad="2"/>
</signal>
<signal name="CTS-EIA">
<contactref element="RS-232" pad="4"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="RTS-EIA">
<contactref element="R13" pad="1"/>
<contactref element="RS-232" pad="5"/>
</signal>
<signal name="N$1">
<contactref element="OK1" pad="4"/>
<contactref element="RX" pad="2"/>
<contactref element="D8" pad="C"/>
</signal>
<signal name="+12V">
<contactref element="R5" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="DC1" pad="6"/>
<contactref element="R6" pad="2"/>
<contactref element="R13" pad="2"/>
<contactref element="R8" pad="1"/>
<contactref element="C2" pad="+"/>
</signal>
<signal name="-12V">
<contactref element="OK1" pad="13"/>
<contactref element="DC1" pad="4"/>
<contactref element="C3" pad="-"/>
</signal>
<signal name="N$3">
<contactref element="OK1" pad="3"/>
<contactref element="R17" pad="1"/>
<contactref element="D8" pad="A"/>
</signal>
<signal name="RCL-">
<contactref element="R16" pad="2"/>
<contactref element="TTY" pad="2"/>
</signal>
<signal name="RCL+">
<contactref element="R17" pad="2"/>
<contactref element="TTY" pad="3"/>
</signal>
<signal name="TCL-">
<contactref element="R14" pad="1"/>
<contactref element="TTY" pad="4"/>
</signal>
<signal name="TCL+">
<contactref element="R15" pad="1"/>
<contactref element="TTY" pad="5"/>
</signal>
<signal name="N$4">
<contactref element="OK1" pad="16"/>
<contactref element="D2" pad="A"/>
<contactref element="R15" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="OK1" pad="15"/>
<contactref element="D2" pad="C"/>
<contactref element="TX" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="R1" pad="2"/>
<contactref element="D1" pad="C"/>
<contactref element="Q1" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="Q1" pad="1"/>
<contactref element="OK1" pad="1"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="FRAMEGND">
<contactref element="RS-232" pad="1"/>
<contactref element="TTY" pad="1"/>
</signal>
<signal name="48AC1">
<contactref element="B3" pad="AC1"/>
<contactref element="TTY" pad="9"/>
</signal>
<signal name="48AC2">
<contactref element="B3" pad="AC2"/>
<contactref element="TTY" pad="8"/>
</signal>
<signal name="RYL1">
<contactref element="B4" pad="AC2"/>
<contactref element="TTY" pad="7"/>
</signal>
<signal name="RYL2">
<contactref element="B4" pad="AC1"/>
<contactref element="TTY" pad="6"/>
</signal>
<signal name="N$11">
<contactref element="OK1" pad="11"/>
<contactref element="D4" pad="C"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="OK1" pad="12"/>
<contactref element="D4" pad="A"/>
<contactref element="B4" pad="-"/>
</signal>
<signal name="N$13">
<contactref element="B4" pad="+"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="R9" pad="2"/>
<contactref element="Q3" pad="2"/>
<contactref element="D5" pad="C"/>
</signal>
<signal name="RDRRUN-EIA">
<contactref element="R9" pad="1"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="DTR-EIA">
<contactref element="R6" pad="1"/>
<contactref element="RS-232" pad="20"/>
</signal>
<signal name="DSR-EIA">
<contactref element="RS-232" pad="6"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="+60V">
<contactref element="B3" pad="+"/>
<contactref element="R12" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="C1" pad="+"/>
</signal>
<signal name="+48VDC">
<contactref element="D3" pad="C"/>
<contactref element="DC1" pad="1"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="RTN">
<contactref element="B3" pad="-"/>
<contactref element="DC1" pad="2"/>
<contactref element="D3" pad="A"/>
<contactref element="DC3" pad="2"/>
<contactref element="D7" pad="A"/>
<contactref element="DC2" pad="2"/>
<contactref element="D6" pad="A"/>
<contactref element="C1" pad="-"/>
</signal>
<signal name="LP1-">
<contactref element="DC2" pad="4"/>
<contactref element="TX" pad="4"/>
</signal>
<signal name="LP2-">
<contactref element="DC3" pad="4"/>
<contactref element="RX" pad="3"/>
</signal>
<signal name="LP1+">
<contactref element="TX" pad="3"/>
<contactref element="DC2" pad="6"/>
</signal>
<signal name="LP2+">
<contactref element="RX" pad="4"/>
<contactref element="DC3" pad="6"/>
</signal>
<signal name="N$19">
<contactref element="TX" pad="2"/>
<contactref element="R14" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="RX" pad="1"/>
<contactref element="R16" pad="1"/>
</signal>
<signal name="+48VDC1">
<contactref element="D6" pad="C"/>
<contactref element="R3" pad="1"/>
<contactref element="DC2" pad="1"/>
</signal>
<signal name="+48VDC2">
<contactref element="D7" pad="C"/>
<contactref element="R4" pad="1"/>
<contactref element="DC3" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="OK1" pad="5"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="N$15">
<contactref element="Q3" pad="1"/>
<contactref element="OK1" pad="6"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
