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40 Gigabit Ethernet 100 Gigabit Ethernet Backplane — 100GBASE-KP4 Improved Backplane 40GBASE-KR4 100GBASE-KR4 100GBASE-KR2 7 m over twinax copper cable 40GBASE-CR4 100GBASE-CR10 100GBASE-CR4 100GBASE-CR2 30 m over Category 8 twisted pair 40GBASE-T — 100 m over OM3 MMF: 40GBASE-SR4 100GBASE-SR10 100GBASE-SR4 100GBASE-SR2 125 m over OM4 MMF [94]
The 100 in the media type designation refers to the transmission speed of 100 Mbit/s, while the BASE refers to baseband signaling. The letter following the dash (T or F) refers to the physical medium that carries the signal (twisted pair or fiber, respectively), while the last character (X, 4, etc.) refers to the line code method used.
Initially, Gigabit Ethernet was deployed in high-capacity backbone network links (for instance, on a high-capacity campus network). In 2000 and 2001, Apple's Power Mac G4 and PowerBook G4 respectively were the first mass-produced personal computers to feature the 1000BASE-T connection. [2] It quickly became a built-in feature in many other ...
The first generation of 100 Gigabit Ethernet using 10 and 25 Gbit/s lanes was standardized in June 2010 as IEEE 802.3ba alongside 40 Gigabit Ethernet. [20] The second generation using 50 Gbit/s lanes was developed by the IEEE 802.3cd task force along with 50 and 200 Gbit/s standards. [ 23 ]
IEEE 802.3 is a working group and a collection of standards defining the physical layer and data link layer's media access control (MAC) of wired Ethernet.The standards are produced by the working group of the Institute of Electrical and Electronics Engineers (IEEE).
Many device interfaces or protocols (e.g., SATA, USB, SAS, PCIe) are used both inside many-device boxes, such as a PC, and one-device-boxes, such as a hard drive enclosure. Accordingly, this page lists both the internal ribbon and external communications cable standards together in one sortable table.
MDI to MDI connection with Ethernet crossover cable. To connect two ports of the same configuration (MDI to MDI, or MDI-X to MDI-X) with a 10 or 100 Mbit/s connection (10BASE-T or 100BASE-TX), an Ethernet crossover cable is needed to connect the pair that each interface transmits on to the receive conductors of the
Since common Category 5 cable has four pairs, it is possible to use the spare pairs (pins 4–5, 7–8) in 10- and 100-Mbit/s configurations for other purposes. The spare pairs may be used for power over Ethernet (PoE), for two plain old telephone service (POTS) lines, or for a second 10BASE-T or 100BASE-TX connection.