Chapter 15


Those parts of the system that you can hit with a hammer (not advised) are called hardware; those program instructions that you can only curse at are called software.—“Levitating Trains and Kamikaze Genes: Technological Literacy for the 1990’s” by Brennan, Richard P.

Years ago, before there was a digital lighting control standard, automated lighting manufacturers were left to their own devices in the area of control and control protocol. Some used digital signals for control, and others used 0–10 volt analog control or some other analog scheme. As a result, almost every automated lighting controller was proprietary to one type of fixture and every fixture was wired directly to the controller or to a repeater box. Cross-pollination ...

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