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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by sailmike[/i] [br]I have a telescope that needs a software update. I do not have a cable for it to hook up to my computer. The telescope manufacterer sells a cable for $25, but I'd like to see if I can save money. It uses the RS232D with RJ45 type connectors, which is the same connector used with ethernet. My question is, can a USB to ethernet cable be used? Are the pinouts the same as with RJ45 serial? I am assuming also that I cannot just use an ethernet cable and hook up to the ethernet port on my computer. Thanks for your help, Mike [/quote]    Insert an Image File (GIF, JPG, JPEG, BMP, ZIP, PNG) Check here to include your profile signature.