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802.3av
The 10 Gbit/s Ethernet Passive Optical Network standard, better known as 10G-EPON allows computer network connections over telecommunication provider infrastructure. The standard supports two configurations: ''symmetric'', operating at 10 Gbit/s data rate in both directions, and ''asymmetric'', operating at 10 Gbit/s in the downstream (provider to customer) direction and 1 Gbit/s in the upstream direction. It was ratified as IEEE 802.3av standard in 2009. EPON is a type of passive optical network, which is a point-to-multipoint network using passive fiber-optic splitters rather than powered devices for fan-out from hub to customers. Standardization The Ethernet in the first mile task force of the Institute of Electrical and Electronics Engineers (IEEE) 802.3 standards committee published standards that included a passive optical network (PON) variant in 2004. In March 2006, the IEEE 802.3 held a call for interest for a 10 Gbit/s Ethernet PON study group. According to the CFI mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethernet In The First Mile
Ethernet in the first mile (EFM) refers to using one of the Ethernet family of computer network technologies between a telecommunications company and a customer's premises. From the customer's point of view, it is their first mile, although from the access network's point of view it is known as the last mile. A working group of the Institute of Electrical and Electronics Engineers (IEEE) produced the standards known as IEEE 802.3ah-2004, which were later included in the overall standard IEEE 802.3-2008. Although it is often used for businesses, it can also be known as Ethernet to the home (ETTH). One family of standards known as Ethernet passive optical network (EPON) uses a passive optical network. History With wide, metro, and local area networks using various forms of Ethernet, the goal was to eliminate non-native transport such as Ethernet over Asynchronous Transfer Mode (ATM) from access networks. One early effort was the EtherLoop technology invented at Nortel Networks in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Optical Network
A passive optical network (PON) is a fiber-optic telecommunications technology for delivering broadband network access to end-customers. Its architecture implements a point-to-multipoint topology in which a single optical fiber serves multiple endpoints by using unpowered (''passive'') fiber optic splitters to divide the fiber bandwidth among the endpoints. Passive optical networks are often referred to as the '' last mile'' between an Internet service provider (ISP) and its customers. Components and characteristics A passive optical network consists of an optical line terminal (OLT) at the service provider's central office (hub) and a number of optical network units (ONUs) or optical network terminals (ONTs), near end users. A PON reduces the amount of fiber and central office equipment required compared with point-to-point architectures. A passive optical network is a form of fiber-optic access network. In most cases, downstream signals are broadcast to all premises sharing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Network
A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts. They are identified by network addresses, and may have hostnames. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol. Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Telecom
China Telecom Corp., Ltd. is a Chinese telecommunications company. It is one of the red chip listed companies of state-owned China Telecommunications Corporation. Its H shares have been traded on the Stock Exchange of Hong Kong since 15 November 2002. It is a constituent of the Hang Seng China Enterprises Index, the index for the H shares of state-controlled listed companies. The company was also listed on the New York Stock Exchange until January 2021. China Telecom is the second-largest wireless carrier in China, with 362.49 million subscribers as of June 2021. China Telecom was a brand of China Telecommunications Corporation, but after the market liberalization of China, the state-owned enterprise spun off the brand and operated it as a separate company, floating it on the Hong Kong Stock Exchange. History China Telecom Corp., Ltd. was incorporated on 10 September 2002 as a limited company in order to float some of the assets of the group on the stock exchange, specifically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infinera
Infinera Corporation is a San Jose, California-based vertically integrated manufacturer of Wavelength division multiplexing (WDM)-based packet optical transmission equipment and IP transport technologies for the telecommunications service provider market. It is a pioneer in designing and manufacturing of large-scale photonic integrated circuits (PICs). The company sells hardware and software networking options for Tier 1 carrier, Internet content provider, cable operator, government, and enterprise networks. History Infinera was founded in 2000 as Zepton Networks by Drew Perkins, Jagdeep Singh and David Welch. It raised its first round of funding in April 2001. The startup remained in stealth mode until its first products were launched in 2004, although a few early media articles did describe the company's component technology - a photonic integrated circuit in indium phosphide. Underwritten by Goldman Sachs, Infinera went public on NASDAQ in 2007, raising $182 million. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ETRI
The Electronics and Telecommunications Research Institute () is a Korean government-funded research institution in Daedeok Science Town in Daejeon, Republic of Korea. Overview Established in 1976, ETRI is a non-profit government-funded research institute. In the 1980s, ETRI developed TDX (Time Division Exchange) and 4M DRAM (Dynamic Random Access Memory). In the 1990s, ETRI commercialized Code-division multiple access Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication .... In the 2000s, ETRI developed Terrestrial DMB, WiBro, and 4G LTE Advanced, for mobile communications. ETRI is one of the leading research institutes in the wireless communication domain with more than 2,500 patents filed. ETRI developed ship-area network technology, portable automatic language interpretation, and au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Electronics
Delta Electronics, Inc. (also known as DELTA or Delta Electronics), is a Taiwanese electronics manufacturing company. Its headquarters are in Neihu, Taipei. It is known for its DC industrial and computer fans and for switching power supplies. The company operates approximately 200 facilities worldwide, including manufacturing, sales, and R&D centers. Overview Delta is a major supplier of power components to Apple and Tesla. Delta is a member of the Taiwan Climate Partnership. The company is committed to reaching net-zero carbon emissions. History Delta Electronics was founded in 1971 in Xinzhuang Town, Taipei County (now Xinzhuang District, New Taipei City). Its first products were TV deflection coils, electronic components and winding magnetic components. It is also a supplier of cooling components. On August 20, 1975, Delta Electronics was reorganized into a company limited by shares. As a result of the US-China trade war, Delta cut its headcount in China by more than ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corning Incorporated
Corning Incorporated is an American multinational technology company that specializes in specialty glass, ceramics, and related materials and technologies including advanced optics, primarily for industrial and scientific applications. The company was named Corning Glass Works until 1989. Corning divested its consumer product lines (including CorningWare and Visions Pyroceram-based cookware, Corelle Vitrelle tableware, and Pyrex glass bakeware) in 1998 by selling the Corning Consumer Products Company subsidiary (now known as Corelle Brands) to Borden. , Corning had five major business sectors: display technologies, environmental technologies, life sciences, optical communications, and specialty materials. Corning is involved in two joint ventures: Dow Corning and Pittsburgh Corning. Quest Diagnostics and Covance were spun off from Corning in 1996. Corning is one of the main suppliers to Apple Inc. Since working with Steve Jobs in 2007 to develop the iPhone; Corning develops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
