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1000BASE-LX is an optical fiber Gigabit Ethernet standard specified in IEEE 802.3 Clause 38 which uses a long wavelength laser (1,270–1,355 nm), and a maximum RMS spectral width of 4 nm. 1000BASE-LX is specified to work over a distance of up to 5 km over 10 μm single-mode fiber.
This led to the development of 10BASE-T and its successors 100BASE-TX, 1000BASE-T, 10GBASE-T and 40GBASE-T, supporting speeds of 10 and 100 megabit per second, then 1, 10 and 40 gigabit per second respectively.
Network topology Point-to-point, star, bus Major variants 10BASE5, 10BASE2, 10BASE-T, 100BASE-TX, 1000BASE-T, 10GBASE-R: Maximum distance 100 m (328 ft) over twisted pair, up to 100 km over optical fiber Mode of operation optical, differential (balanced), single-ended Maximum bit rate 1 Mbit/s to 800 Gbit/s: Voltage levels
The most common forms used are 10BASE-T, 100BASE-TX, and 1000BASE-T. All three use twisted-pair cables and 8P8C modular connectors . They run at 10 Mbit/s , 100 Mbit/s , and 1 Gbit/s , respectively.
1000BASE-T1 – Gigabit Ethernet over a single twisted pair for automotive & industrial environments 802.3bq 2016-06 [3] 25GBASE-T/40GBASE-T Ethernet for four-pair balanced–twisted-pair cabling with two connectors over 30 m distances 802.3br 2016-06 Specification and Management Parameters for Interspersing Express Traffic 802.3bs 2017-12
3 Network Topology. 4 ... 10BASE5, 100BASE-TX, 100BASE-FX, 1000BASE-T ... the name can also be used to describe the token passing ring logical topology that ...
100BASE-TX, 1000BASE-T [18] Common for current LANs. Superseded by Cat 5e, but most Cat 5 cables meet Cat 5e standards. [18] Limited to 100 m between equipment. Cat 5e: UTP, [18] F/UTP, U/FTP [19] 100 MHz [18] 1000BASE-T, 2.5GBASE-T [18] Enhanced Cat 5. Common for current LANs. Same construction as Cat 5, but with better testing standards. [18]
The autonegotiation specification was improved in the 1998 release of IEEE 802.3. This was followed by the release of the IEEE 802.3ab Gigabit Ethernet standard in 1999 which specified mandatory autonegotiation for 1000BASE-T. Autonegotiation is also mandatory for 1000BASE-TX and 10GBASE-T implementations. Currently, most network equipment ...