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Standards

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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