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FTTP
Fiber to the ''x'' (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber optic cables are able to carry much more data than copper cables, especially over long distances, copper telephone networks built in the 20th century are being replaced by fiber. The carrier equipment for FTTx is often housed in a "fiber hut", point of presence or central office. FTTX is a generalization for several configurations of fiber deployment, arranged into two groups: FTTP/FTTH/FTTB (fiber laid all the way to the premises/home/building) and FTTC/N (fiber laid to the cabinet/node, with copper wires completing the connection). Residential areas already served by balanced pair distribution plant call for a trade-off between cost and capacity. The closer the fiber head, the higher the cost of construction and the higher the channel capa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadband
In telecommunications, broadband or high speed is the wide-bandwidth (signal processing), bandwidth data transmission that exploits signals at a wide spread of frequencies or several different simultaneous frequencies, and is used in fast Internet access. The transmission medium can be coaxial cable, optical fiber, wireless Internet (radio), twisted pair cable, or satellite broadband, satellite. Originally used to mean 'using a wide-spread frequency' and for services that were analog at the lowest level, nowadays in the context of Internet access, 'broadband' is often used to mean any high-speed Internet access that is seemingly always 'on' and is faster than Dial-up Internet access, dial-up access over traditional plain old telephone service, analog or ISDN public switched telephone network, PSTN services. The ideal telecommunication network has the following characteristics: ''broadband'', ''multi-media'', ''multi-point'', ''multi-rate'' and economical implementation for a di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Airports In Chad
This is a list of airports in Chad, grouped by type and sorted by location. Chad, officially known as the Republic of Chad (, or ''Jumhūriyyat Tshād''), is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west. The country is divided into 22 regions, which are further divided into departments and Sub-prefectures. Chad's capital and largest city is N'Djamena, which is the location of the country's main airport. Scheduled passenger service is available at N'Djamena and five other cities. Toumaï Air Tchad is the national flag carrier airline, operating domestic services within Chad as well as scheduled international services to other African nations. Airports Airport names shown in bold indicate the airport has scheduled service on commercial airlines. , , 03/21 , , grass , - valign=top , Baïbokoum , Logone Orien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Fiber-coaxial
Hybrid fiber-coaxial (HFC) is a broadband telecommunications network that combines optical fiber and coaxial cable. It has been commonly employed globally by cable television operators since the early 1990s. In a hybrid fiber-coaxial cable system, television channels are sent from the cable system's distribution facility, the headend, to local communities through optical fiber subscriber lines. At the local community, an optical node translates the signal from a light beam to radio frequency (RF), and sends it over coaxial cable lines for distribution to subscriber residences. The fiber optic trunk lines provide enough bandwidth to allow additional bandwidth-intensive services such as cable internet access through DOCSIS. Bandwidth is shared among users of an HFC. Encryption is used to prevent eavesdropping. Customers are grouped into service groups, which are groups of customers that share bandwidth among each other since they use the same RF channels to communicate with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triple Play (telecommunications)
In telecommunication, triple play is the provision of broadband internet, television, and telephony over a single connection. This approach emphasizes the supplier convergence of multiple services, aiming to enhance user convenience and streamline service delivery. CATV By about 2000, cable TV companies were in a technical position to offer ''triple play'' over one physical medium to a large number of their customers, as their networks already had sufficient bandwidth to carry hundreds of video channels. Cable's main competition for television in North America came from satellites, which could not compete for voice and interactive broadband due to the latency imposed by physical laws on a geosynchronous satellite—sometimes up to one full second of delay between speaking and being heard. Cable's main competition for voice and Internet access came from telcos, which were not yet able to compete for television in most markets because DSL over most local loops could not provid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point-to-Point Protocol Over Ethernet
The Point-to-Point Protocol over Ethernet (PPPoE) is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet frames. It appeared in 1999, in the context of the boom of DSL as the solution for tunneling packets over the DSL connection to the ISP's IP network, and from there to the rest of the Internet. A 2005 networking book noted that "Most DSL providers use PPPoE, which provides authentication, encryption, and compression." Typical use of PPPoE involves leveraging the PPP facilities for authenticating the user with a username and password, via the PAP protocol or via CHAP. PAP was dominant in 2007 but service providers have been transitioning to the more secure CHAP, because PAP is a plain-text protocol. Around 2000, PPPoE was also starting to become a replacement method for talking to a modem connected to a computer or router over an Ethernet LAN displacing the older method, which had been USB. This use-case, connecting routers to mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Access
Internet access is a facility or service that provides connectivity for a computer, a computer network, or other network device to the Internet, and for individuals or organizations to access or use applications such as email and the World Wide Web. Internet access is offered for sale by an international hierarchy of Internet service providers (ISPs) using various networking technologies. At the retail level, many organizations, including municipal entities, also provide cost-free access to the general public. Types of connections range from fixed-line cable (such as DSL and fiber optic) to Mobile broadband, mobile (via Cellular network, cellular) and Satellite Internet access, satellite. The availability of Internet access to the general public began with the commercialization of the early Internet in the early 1990s, and has grown with the availability of useful applications, such as the World Wide Web. In 1995, only percent of the world's population had access, with well ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Of Presence
A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their Internet service provider (ISP). A PoP typically houses servers, routers, network switches, multiplexers, and other network interface equipment that connects an ISP to customers including OLTs ( optical line terminals) for fiber internet, and is typically located in a data center. ISPs typically have multiple PoPs. PoPs are often located at Internet exchange points and colocation centres. In the US, this term became important during the court-ordered breakup of the Bell Telephone system. A point of presence was a location where a long-distance carrier (IXC) could terminate services and provide connections into a local telephone network ( LATA). See also * Cable headend * Content delivery network * Meet-me room * Telephone excha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Distribution Frame
In telephony, a main distribution frame (MDF or main frame) is a signal distribution frame for connecting equipment (inside plant) to cables and subscriber carrier equipment ( outside plant). Overview The MDF is a termination point within the local telephone exchange where exchange equipment and terminations of local loops are connected by jumper wires at the MDF. All cable copper pairs supplying services through user telephone lines are terminated at the MDF and distributed through the MDF to equipment within the local exchange e.g. repeaters and DSLAM. Cables to intermediate distribution frames (IDF) terminate at the MDF. Trunk cables may terminate on the same MDF or on a separate trunk main distribution frame (TMDF). Like other distribution frames the MDF provides flexibility in assigning facilities, at lower cost and higher capacity than a patch panel. The most common kind of large MDF is a long steel rack accessible from both sides. On one side, termination blocks a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structured Cabling
In telecommunications, structured cabling is building or campus cabling infrastructure that consists of a number of standardized smaller elements (hence structured) called subsystems. Structured cabling components include twisted pair and optical cabling, patch panels and patch cables. Overview Structured cabling is the design and installation of a cabling system that will support multiple hardware uses and be suitable for today's needs and those of the future. With a correctly installed system, current and future requirements can be met, and hardware that is added in the future will be supported. Structured cabling design and installation is governed by a set of standards that specify wiring data centers, offices, and apartment buildings for data or voice communications using various kinds of cable, most commonly Category 5e (Cat 5e), Category 6 (Cat 6), and fiber-optic cabling and modular connectors. These standards define how to lay the cabling in various topolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiber To The Telecom Enclosure
Fiber to the Edge (FTTE), fiber to the telecom enclosure (FTTTE) or fiber to the zone (FTTZ), is a fiber to the x networking approach used in the enterprise building (hotels, convention centers, office buildings, hospitals, senior living communities, Multi-Dwelling Units, stadiums, etc.). It is a standards-compliant structured cabling system architecture that extends the optical fiber backbone network from the equipment room directly to a telecommunications enclosure (TE), access node, ONT, or media converter installed in a common space to serve a number of users or devices in a nearby area. In other words, fiber reaches directly from the main distribution frame of a building out to the edge devices, eliminating or reducing the need for intermediate distribution frames. Implementation Its implementation is based on the TIA-569-B “Pathways and Spaces” technical standard, which defines the Telecommunications Enclosure (TE), and TIA/EIA-568-B.1 Addendum 5, which def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BornHack
BornHack (a portmanteau of "Bornholm" and "Hacker, hack") is an annual Computer security conference, hacker camp on the Danish island of Funen, near Gelsted. From 2016 to 2018, it was organized on Bornholm. History In 2021, the BornHack electronic badge was based on a perfboard due to the 2020–present global chip shortage, chip shortage. The 2021 camp was also captured in Google Maps' aerial pictures. In 2022, Thomas Flummer developed a badge based on the RP2040, for which software can be developed in CircuitPython. During BornHack there is a field specifically designed for loud noise, with a noise barrier made from soil. A Dutch hacker brought an old civil defense siren for testing purposes. Within a few minutes, four separate phone calls were made to the Police of Denmark, Danish police from houses located a large distance from BornHack. See also * Electromagnetic Field (festival), EMF Camp * Still Hacking Anyway, SHA 2017 * Chaos Communication Camp, CCCamp Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
