INTRODUCTION
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Some vendors are manufacturing STP-only products based on an
earlier proposal rejected by ANSI (the “Green Book Proposal”).
These products are proprietary and non-standard, and ANSI does
not recognize or support them.
The ANSI EIA/TIA 586 document was completed in 1991 and laid
the foundation for cable plants supporting data rates of 100
Megabits per second. This document specifies that MultiMode
fiber be installed for vertical riser applications and horizontal
distances greater than 100 meters.
Category 5 UTP cable is specified for desktop wiring distances up
to 100 meters and data rates up to 100 Mb/s. Two Technical System
Bulletins (TSB) were issued by EIA/TIA after ANSI EIA/TIA 586.
TSB-36 classifies UTP cables into categories 3, 4, and 5, and
provides characteristic and performance values at particular data
rates. TS8-40 classifies connector hardware (punch-down blocks,
patch panels, wall jacks, etc.) into categories 3, 4, and 5, and also
provides characteristic and performance values at particular data
rates.
Anyone considering installing a new cable plant should consult all
three documents. They are available through your local EIA
publications office - call (202) 457-4963.
Cabletron Systems is committed to delivering FDDI products in
strict conformance with the ANSI standards and Cabletron’s
Integrated Network Architecture (INA).
