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By reducing the original signal rate to 1 ⁄ 4 or 1 ⁄ 2, the link speed drops to 2.5 or 5 Gbit/s, respectively. [5] The spectral bandwidth of the signal is reduced accordingly, lowering the requirements on the cabling, so that 2.5GBASE-T and 5GBASE-T can be deployed at a cable length of up to 100 m on Cat 5e or better cables. [6] [7]
Unified Media Interface 2.0 (UMI 2.0; ×4 link) 20 Gbit/s: 2 GB/s: 2012 Direct Media Interface 2.0 (DMI 2.0; ×4 link) 20 Gbit/s: 2 GB/s: 2011 PCI Express 1.0 (×8 link) [l] 20 Gbit/s: 2 GB/s: 2004 PCI Express 2.0 (×4 link) [m] 20 Gbit/s: 2 GB/s: 2007 AGP 8×: 17.066 Gbit/s: 2.133 GB/s: 2002 PCI-X DDR: 17.066 Gbit/s: 2.133 GB/s: RapidIO Gen2 4 ...
The physical-layer specifications of the Ethernet family of computer network standards are published by the Institute of Electrical and Electronics Engineers (IEEE), which defines the electrical or optical properties and the transfer speed of the physical connection between a device and the network or between network devices.
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).
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 ...
Ethernet Virtual Private LAN (EVP-LAN) is a multipoint-to-multipoint Ethernet Virtual Connection defined by the MEF — a Carrier Ethernet equivalent of Virtual Private LAN Service (VPLS) or Transparent LAN Services. EVP-LAN enables any-to-any communication between all customer locations associated with the customer's Ethernet Virtual ...
Most Ethernet cables are wired straight-through (pin 1 to pin 1, pin 2 to pin 2, and so on). In some instances, the crossover form (receive to transmit and transmit to receive) may still be required. Cables for Ethernet may be wired to either the T568A or T568B termination standards at both ends of the cable. Since these standards differ only ...
In GPRS Coding Schemes CS-1 through CS-3, the convolutional code is of rate 1/2, i.e. each input bit is converted into two coded bits. [5] In Coding Schemes CS-2 and CS-3, the output of the convolutional code is punctured to achieve the desired code rate. [5] In GPRS Coding Scheme CS-4, no convolutional coding is applied. [5]