Table of Contents Introduction Page 3 Features Page 3 Is my scope mount compatible with this device? Page 4 How do I hook up the adapter? Page 5 How can I be sure that my computer can Page 5 control my telescope mount through this adapter? Schematic Diagram Page 8...
Introduction The Shoestring Astronomy Guide Port Interface Adapter is designed specifically to work between the parallel port of a desktop or laptop personal computer and the autoguider port that is a feature of many different telescope mounts. It is a small but important piece of a total system that allows you to economically autoguide your telescope for long exposure astrophotography.
The important thing is that pin 2 is the common, and that the four direction control lines come out on pins 3, 4, 5, and 6. The Shoestring Astronomy Guide Port Interface Adapter does not connect anything to pin 1. GuideDog software allows the user to configure which pin of the parallel port controls which direction of movement, so the exact order shown above is not critical.
5) If you have a camera or other device that uses parallel port signals for control, plug this into the female DB-25 connector on the adapter. Shoestring Astronomy sells cables that are known to be compatible with this adapter. You can make your own or buy them elsewhere, but be sure that the wires connect straight through, i.e.
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4) Now select the ‘Relay Box’ tab in the ‘Options’ window. To begin with, use the default settings as shown below. Page 6...
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5) Also on the ‘Relay Box’ tab, click the ‘Clear // Port’ button to initialize the parallel port. Close the ‘Options’ window. 6) Power up your scope mount and connect the cable from the adapter to your scope mount. 7) In the lower left corner of the GuideDog main panel are the nudge buttons. These can be used to move your scope in four directions.
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