Information Technology Reference
In-Depth Information
EIA/TIA (Electronic Industries Association and
Telecommunication Industry Association) Standards
The EIA and TIA are two separate organizations that provide standards for the elec-
tronic and telecommunications industries. The TIA was formed in 1988 from the
EIA telecommunications group and the U.S. Telephone Suppliers Association. The
standards for telecommunications are jointly issued by EIA and TIA. TIA now has
responsibility for continued development of the former EIA/TIA standards. It is
these standards that are important to LAN wiring. As these standards are revised,
the organization names are reversed; thus, EIA/TIA-568 has become TIA/EIA-568-
A and -B. Many of the EIA/TIA standards are coordinated or harmonized with
other recognized national and international organizations, such as ISO, IEC, and
CSA. The telecommunications standards are also ANSI-recognized standards.
EIA/TIA-568
2
(1991)
Commercial Building Telecommunications
Wiring Standard
(superseded by TIA/EIA-
568-A)
TIA/EIA-568-A2 (1995)
Commercial Building Telecommunications
Wiring Standard
(superseded by TIA/EIA-
568-B)
TIA/EIA-568-B2 (2000)
Commercial Building Telecommunications
Wiring Standard
The TIA/EIA-568-B standard comprises three independent parts, designated B.1,
B.2, and B.3. The draft revision process is handled separately for each part. The
standard replaces ANSI/TIA/EIA-568-A and incorporates and refines the technical
content of TSB-67, TSB-72, TSB-75, and ANSI/TIA/EIA-568-A Addenda A-1, A-2,
A-3, A-4, and A-5. The titles of each part are as follows:
TIA/EIA-568-B.1
Part 1:
General Requirements
(SP 4426)
TIA/EIA-568-B.2
Part 2:
100 Ohm Balanced Twisted-Pair
Cabling Components Standard
(PN 4425)
TIA/EIA-568-B.3
Part 3:
Optical Fiber Cabling Components
Standard
(SP 3894) TSB-362 (1991)
2
This standard has been replaced or superseded by a later standard, as indicated. It is included here
to help clarify references to the standard number that may appear in specifications and references for
cabling.
