Is Category 5 still recognized by TIA/EIA?
Yes and No. TIA/EIA is probably the most recognized committee that publishes commercial building and residential telecommunications cabling standards. In July 2001, the committee ratified TIA/EIA 568-B which replaced TIA/EIA 568-A. 568-B includes recommended electricals for Category 5 in an informative annex, but does not mandate conformance. Standards aside, because Category 5 does not support Gigabit Ethernet, it is not a reasonable solution to a commercial cabling application.
