The latest standard published by TIA is the ANSI/TIA/EIA 568-B standard. It is a revision of the ANSI/TIA/EIA-568-A that was published in 1995. It includes the core document, all five existing addenda and TSB-67, TSB-72, TSB-75 and TSB-95. This standard is published as a 3-part document:

The TIA/EIA 568-B.1 draft discusses general requirements. It provides information in regards to planning, installing and verifying structured cabling systems in commercial buildings. It also establishes performance parameters for cabling systems such as channels and permanent links. One of the major changes in this document is that it only recognizes Category 5e (or higher category) cabling for the second data outlet.
The TIA/EIA 568-B.2 draft discusses balanced twisted-pair cabling components. This standard specifies cabling components and transmission requirements for a cabling system.
The TIA/EIA 568-B.3 discusses optical fiber cabling components. This standard specifies components and transmission requirements for optical fiber cabling systems. The purpose of this standard is to provide the minimum requirements for telecommunications cabling within a commercial building or campus environment.

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