Celestron Compustar Manuál s instrukcemi stáhnout pdf (Strana 13)

Figure 5. Two examples of RJ-11 autoguiding cables, a flat ribbon cable on the left and a

coiled cable on the right.

An RJ-11 cable looks a just like a telephone cable, complete with modular telephone jacks, but it

is not a telephone cable. RJ-11 cables will be discussed in detail below, but the important point

to understand now is that the connector device must plug into the computer port you‟ve selected

and also have a female RJ-11 modular jack plug, which looks like a female telephone jack plug.

Such connectors are commercially available. An excellent source is Shoestring Astronomy

(www.shoestringastronomy.com). They provide parallel port to RJ-11 adapters, sold as a

GPINT-PT device (Figures 6A and 7), and USB to RJ-11 adapters, sold as a GPUSB device

(Figure 6B). The website contains useful manuals for these devices that you may download and

read.

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