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cable_wiring.html
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<title>G2 Serial Port Modes</title>
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<table align="center" style="width: 900px">
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<td> </td>
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<td class="h2">
Gemini 1 Serial Cable wiring
</td>
</tr>
<tr>
<td class="style6">
The Gemini 1 Serial Cable Losmandy Part number "GCC"
was on Losmandy Web site
<a href="http://www.losmandy.com/access.html" target="_blank">accessories page</a> about 3/4 way down.
But is is no longer listed. <br />
<br />
The Gemini 2 Serial Cable Losmandy Part number "GCC Gem 2" is on Losmandy Web site
<a href="http://www.losmandy.com/access.html" target="_blank">accessories page</a> about 3/4 way down.
I recommend you purchasing these cables instead of making your own.
Here is a Picture of another way to make it courtesy of Losmandy.</td>
</tr>
<tr>
<td class="style7">
<img alt="" height="646" src="gemini-images/Serial_Wiring_Diagram.jpg" width="401" /></td>
<td style="width: 10px"></td>
<td class="style6"> Please note that the 4 Pin Telephone connector for
the Gemini-1 is a
RJ22. It is much narrower than a standard 4 pin telephone connector. It
is the size of what telephone companies used to use to connect to
handsets.<br />
<br />
<br />
The telephone connector for the Gemini-2 is a RG12 or 6C6P connector.</td>
</tr>
</table>
<hr class="style2" style="height: 4px; width: 900px;" />
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<td class="style7">
<br/>
<img alt="DB9 for G1" src="gemini-images/Images/G1RS232.gif" />
<img alt="RJ22 for G1" src="gemini-images/Images/G1RJ22.gif" /><br />
short pins 1, 7 & 8 together, and 4 & 6 on RS232 connector together.
</td>
</tr>
<tr>
<td class="style7">
<br/>Follow the color codes for the Gemini 1 RS232 cable wiring
<br />
The telephone plug shown should be a RJ22 which is narrower than the standard RJ12 plug.
<br />The RS-232 connector is a Female
DB-9 connector.
</td>
</tr>
</table>
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<tr>
<td class="h2">
<br/><br />
Gemini 2 Serial Cable wiring Mode 1 and 2
<br/><br />
</td>
</tr>
<tr>
<td class="style7">
<img alt="DB9 for G1" src="gemini-images/Images/G1RS232.gif" />
<img alt="" height="106" src="gemini-images/Images/RJ12Mode1-2.jpg" width="174" />
<br />
short pins 1, 7 & 8 together and 4 & 6 on RS232 connector together.<br/><br/>
Follow the color coded for Gemini 2 RS232cable wiring
<br/>
This is for mode 1 and 2 jumper setting (see
<a href="serial_port_modes.html" target="_self">Serial Port Modes</a>)
<br />
One way to do this is to use a DB9-F to RJ12 adapter
<a href="Losmandy_Serial_Cable.html" target="_self">(see drawing)
</a>
<br />Notice the two center pins of the RJ12 plug are connected together, <br />and get routed to pin 5 of the RS232 DB9F plug. <br />
The RS-232 connector is a Female DB-9 connector. <br />The telephone connector is a RJ-12
6C6P connector.
<!--This is a <a href="downloads/Wiring/RS-232_Cable_Wiring_Diagram.pdf">schematic</a> of the Mode 1 and 2 cable wiring.
<br /><br /> -->
<br />
<br />
This DB9 pin connector goes into the computer, and the RJ12 goes
into Serial Port 1/Graphics HC<br />
</td>
</tr>
</table>
<hr class="style2" style="height: 4px; width: 900px;" />
<table align="center" style="width: 900px">
<tr>
<td class="h2">
<br/><br/>
Gemini 2 Serial Cable wiring Mode 3
<br/><br />
</td>
</tr>
<tr>
<td class="style7">
<img alt="DB9 for G1" src="gemini-images/Images/G1RS232.gif" />
<img alt="" height="106" src="gemini-images/Images/RJ12Mode3.jpg" width="174" />
<br/><br/>
Follow the color coded for Gemini 2 RS232cable wiring
<br/>
This is for mode 3 jumper setting (see
<a href="serial_port_modes.html" target="_self">Serial Port Modes</a><br />
The RS-232 connector is a Female DB-9 connector. <br />The telephone connector is a RJ-12 connector.</td>
</tr>
<tr><td class="auto-style1">Please note that the GPS supplied by Losmandy for the Gemini-1 will not work on the Gemini-2. It can be modified by cutting off the connectors and putting on the correct ones. You can search the user groups for these instructions. I don't have either version, so no instruction are given here .</td></tr>
</table>
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