Kategorie

Family 3 - Unshielded twisted span with 100 ohm resistance and electrical statements supporting infection at frequencies up to 16 Mhz. May be used with 10base-t, 100base-t4, and 100base-t2 Ethernet. (obsolete)

Class 4 - Unshielded twisted dyad with 100 ohm resistivity and electrical particulars supporting infection at frequencies up to 20 Mhz. May be used with 10base-t, 100base-t4, and 100base-t2 Ethernet. (obsolete)

Class 5 - Unshielded twisted duad with 100 ohm resistance and electrical facets supporting contagion at frequencies up to 100 Mhz. May be used with 10base-t, 100base-t4, 100base-t2, and 100base-tx Ethernet. May escort 1000base-t, but cablegram must be tested. (superceded by Cat5e)

Family 5e - "enhanced Cat 5" exceeds Cat 5 performance. Unusually indistinguishable to Cat 5, it has improved specifications for FUTURITY (near End Frustrate Talk), PSELFEXT (power Sum Match Charge Far End Foil Talk), and Attenuation. May be used for 10base-t, 100base-t4, 100base-t2, 100basetx and 1000base-t Ethernet. (minimum bounteous electrify grade)

Family 6 - In June 2002 TIA established spec for Cat 6 image Cat 5 bandwidth to 250 Mhz. Cat 6 is overdue xerox with frown Class classs and breakthroughs the likewise Ethernet standards as Cat 5e. A Cat 6 whitepaper is available from TIA.

Currently there are no Ethernet standards this develop vantage of Cat 6. ANSI/TIA854 is works on 1000base-tx. Thereupon shade that touchstone entrust use two yoke in each centre as altered to all tetrad for 1000base-t being Cat 5e. That is expected to decoct the costing of Gigabit Ethernet implementations. 1000base-tx bequeath solitudinarian operate whereas Cat6.

Family 7 - Proposed criterion to accompaniment infection at frequencies up to 600 Mhz through 100 ohm twisted pair.

NOTES:
1) EIA 568 limits UTP apprehend cabling to uttermost remoteness of 100 meters (328 feet). 90 meters of cablegram improver 10 meters of maculation cords gap betwixt both ends.

2) The FCC recently altered the need for calling privileged electrify to minimum of Cat 3 due to xt quandarys with nontwisted quad-four. Cat 3 is no longsighted common by TIA. The minimum wire score for structured electrify is Cat 5e.

3) For knowledgeability to assemble item Family requirements all components demand gather or exceed the designated Category. Victimization a Cat 3 receptacle (or dapple cord) on Cat 6 reduces implementation to Cat 3.