NBase-T is the official IEEE standard of the IEEE working group 802.3bz. It supports 2.5 Gigabit Ethernet( 2.5GbE) with a data rate of 2.5 Gbit/s and 5 Gigabit Ethernet (5GbE) with 5 Gbit/s. Both versions operate on existing Cat 5e (2.5GbE) and Cat 6 (5GbE) cabling and can supply Power over Ethernet( PoE) to access points ( AP) via the cabling.
NBase-T addresses the increasing demands for high- performance mobile devices to transmit and display high-definition video and other byte-intensive content. It also addresses the need to support WLANs and their access points (AP) with data rates of 1 Gbps, 2.5 Gbps and 5 Gbps, as with the WLAN standard802.11ac. NBase-T meets these requirements based on existing Cat 5e or Cat 6 cabling. According to the specifications, NBase-T can transmit data rates of 5 Gbit/s over Cat 5e cables over distances of 100 m with a bit error rate( BER) of '10^-12'. It supports standard Power over Ethernet (PoE) at a maximum of 15 W, PoE+ at 30 W, and with 4PPoE at 60 W over four wire pairs. These PoE techniques can be used to power access points over Ethernet cabling.
IEEE has standardized NBase-T, which is promoted by the NBase-T Alliance, as IEEE Standard 802.3bz with data rates of 2.5 Gbps as 2.5GbE and 5 Gbps as 5GbE. The cabling is 2.5Base-T and 5Base-T.