"DMX512 mini-FAQ" - читать интересную книгу автора (Mills D.)

USA

Tel : (212) 924 - 9088
Fax : (212) 924 - 9343


Electronic Industries Association (EIA)
2001 Eye Street,N.W.
Washington D.C.20006
USA.

PLASA Ltd.
7 Highlight House,
St Leonards Road,
Eastbourne
East Sussex BN21 3UH
UK.


2.0 Applications.
-----------------
The DMX protocol was designed to provide a common protocol for
communication between controllers and dimmers.


2.1 What it was designed to do.
-------------------------------
The protocol was designed to control dimmers.


2.2 What it is used to do.
--------------------------
In addition it is used to control Color scrollers, Moving lights, Smoke
machines and almost any equipment that can be controlled digitally.
Note that as it is a 8 bit protocol many moving lights use 2 chan. to
provide 16 bit resolution.


2.3 What it should not be used to do.
-------------------------------------
The DMX protocol does NOT have any form of error correction! Therefore
it must not be used to control Pyro's or any stage equipment or effect
that could present a hazard if it was to be triggered unexpectedly.
For these applications Midi Show Control (MSC) 2 with 2 phase commit can
be used with reasonable safety. I personally feel that this stuff is best
done using hardwired switches.


3.0 Electrical details.
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