Gemini Industries Printer user manual Gemini User’sManual

Gemini User’sManual

set them. Other products call them “internal switches” because you must take their printers apart to get to them. The Gemini DIP switches are easy to set, which is explained in Chapter 4.

Next to the DIP switches is the connector for the parallel interface. This is where you connect your Gemini to your personal computer, so they are “interfacing:’ and able to communicate with each other. (Appendices A through F provide information on hooking-up your Gemini with six widely used types of microcomputers.) This connector is for a “parallel” interface, a type of interfacing that is accomplished by having the printer “parallel-wired” like a string of double-wired Christmas lights, where each lightbulb burns independently. Data from your computer is sent down the cable wires to your Gemini side-by-side, or “parallel?

Between the parallel interface and the power cord is the “port hole” (a punch-out plastic tab) for the serialinterface. This optional interface allows you to connect Gemini with a computer requiring serial communications.

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figure 1-1. The operational controls are on the right side of the Gemini printers.

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