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Page
71 of 97
Figure
6-6: Model 279 shown in an
application where process control
computer is quite remote for
a Local Controller
CHAPTER
7
STANDARDS
Any
network architecture must
follow some set of
protocols. On the one hand,
the set of protocols
may
be
home grown - that is
specified by the designer of the
network. On the other hand,
the set of protocols
may
conform to a recognized, published,
set of standards.
With
respect fiber optic data
communications in the premises
environment there are three
recognized,
published,
sets of standards; 1) Ethernet,
100Base-FX, 2) Fiber Distributed Data
Interface, FDDI and 3)
Fiber
Channel.
A
discussion of these published
standards is well beyond the
present work. However, the
interested
reader
may order them from a
number of different sources. Several
are listed (alphabetically)
below.
When
calling these organizations it will be
worth your while to request a
catalog and request to be
included
on their update services. This will allow
you to be kept informed of
new standards and
supplements
to existing ones as they are
approved.
ANSI
Sales
Department
American
National Standards
Institute
11
West 42nd Street, 13th
Floor
New
York, NY 10036
Tel:
(212) 642-4900
Fax:
(212) 302-1286
EIA
Electronic
Industries Association
2500
Wilson Blvd.
Arlington,
VA 22201
Tel:
(703) 907-7500
Fax:
(703) 907-7501
Global
15
Inverness Way East
Engineering
Englewood,
CO 80112-5704
Tel:
(800) 624-3974
Tel:
(303) 792-2181
Fax:
(303) 790-0730
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