At&t Fiber Customer Service Number – “Fiber Broadband” redirects here. For the overhead version of data and Internet transmission, see broadband over power lines.
FTTB, FTTC, FTTD, FTTH, FTTK, FTTN, and FTTP all redirect here. For airports with that ICAO code, see List of airports in Chad.
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A schematic illustrating how FTTX (Node, Curb, Building, Home) architectures vary with respect to the distance between optical fiber and D user. The building on the left is the ctral office; The building on the right is one of the buildings served by the central office. Dotted rectangles represent separate living or office spaces within the same building.
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Fiber to the x (FTTX; also spelled “fiber”) or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of a local loop used for last mile telecommunications. Because fiber optic cables are capable of carrying more data than copper cables, especially over long distances, fiber has replaced copper telephone networks built in the 20th Curie.
FTTX is a generalization for many configurations of fiber deployment, organized into two groups: FTTP/FTTH/FTTB (fiber is laid all the way to the premises/home/building) and FTTC/N (fiber is laid at the cabinet/node with copper. wires completing the connection). ).
Residential areas already served by balanced pair distribution plants demand a trade-off between cost and capacity. The closer the fiber head is, the higher the construction cost and the higher the channel capacity. In areas where metallic facilities are not available, not running fiber to the home saves some money.
Fiber to the X is the dominant method for driving Next-Generation Access (NGA), which describes a significant upgrade in available broadband with a step change in service speed and quality. It is typically considered asymmetric with download speeds up to 24 Mbit/s and faster upload speeds.
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Ofcom defines super-fast broadband as “broadband products that provide download speeds in excess of 24 Mbit/s – this threshold is generally considered to be the maximum speed that can be supported on current generation (copper-based) networks.”
A similar network called a hybrid fiber-coaxial (HFC) network is used by cable television operators but is not usually synonymous with “fiber in the loop”, although similar advanced services are provided by HFC networks. Fixed wireless and mobile wireless technologies such as Wi-Fi, WiMAX and 3GPP Long Term Evolution (LTE) are options for providing Internet access.
To promote consistency, especially when comparing FTTH penetration rates between countries, the three FTTH conferences of Europe, North America and Asia-Pacific agreed on definitions of FTTH and FTTB in 2006,
While fiber optic cables can carry data at high speeds over long distances, traditional telephone lines and copper cables used in ADSL cannot. For example, a common form of Gigabit Ethernet (1Gbit/s) runs over relatively cost-effective Category 5e, Category 6 or augmented Category 6 unshielded twisted-pair copper cabling but only over 100 m (330 ft). However, 1 Gbit/s Ethernet over fiber can easily reach ts kilometers. Therefore, FTTP is chosen by every major communications provider in the world to carry data directly to customers’ homes over 1 Gbit/s symmetrical connections. FTTP configurations that bring fiber directly into the building can offer higher speeds because the rest of the volume can use standard Ethernet or coaxial cable.
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Fiber is called “future-proof” because the data rate of the connection is usually limited by the terminal equipment rather than the fiber itself, allowing significant speed improvements by upgrading the equipment before the fiber itself is upgraded. However, the type and lgth of fibers employed, e.g. Multimode Vs. Single-mode, are important for future applications for connections greater than 1 Gbit/s.
With the growing popularity of high-definition, on-demand video streaming applications and devices such as YouTube, Netflix, Roku and Facebook LIVE, the demand for reliable bandwidth is significant as more people use these services.
FTTC (where the fiber to the cabinet on the street switches to copper) is much further away from users for standard Ethernet configurations than existing copper cabling. They typically use Very-High-Bit-Rate Digital Subscriber Line (VDSL) with a downstream rate of 80 Mbit/s, but this drops off very quickly if the distance is greater than 100 meters.
Fiber to the Premises (FTTP) is a form of fiber-optic communication delivery, in which optical fiber is run in an optical distribution network from central offices to customer-occupied premises. The term “FTTP” has become ambiguous and can also refer to FTTC where the fiber terminates at a utility pole without reaching the premises.
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An apartment building can illustrate the difference between FTTH and FTTB. If fiber is run to the panel inside each customer’s apartment unit, it is FTTH. Instead, fiber only goes to the shared electrical rooms of the apartment building (ground floor only or every floor), it is FTTB.
FTTN or FTTC fiber inside the cabinet. On the left is fiber and DSLAM and on the right are copper and punch down blocks for DSL such as VDSL.
Fiber to the Curb/Cabinet (FTTC) is a telecommunications system based on fiber-optic cables that runs on platforms serving multiple customers. Each of these consumers has a connection to this platform through coaxial cable or twisted pair. “Curb” is an abstraction and can just as easily mean a pole-mounted equipment or communications closet or shed. Generally any system that terminates fiber within 1,000 ft (300 m) of customer premises equipment will be described as FTTC.
Fiber to the Node or Neighbor (FTTN), sometimes known and sometimes distinguished from Fiber to the Cabinet (FTTC),
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The telecommunications architecture is based on fiber-optic cables that run to adjacent cabinets. Customers typically connect to these cabinets using traditional coaxial cable or twisted pair wiring. The area served by the cabinet is typically less than a mile in radius and may have several hundred customers. (If the cabinet operates within a radius of less than 1,000 feet (300 m), the architecture is usually called FTTC/FTTK.)
FTTN allows the delivery of broadband services such as high-speed internet. High-speed communication protocols such as broadband cable access (typically DOCSIS) or some form of digital subscriber line (DSL) are used between the cabinet and the customer. Data rates vary depending on the exact protocol used and how close the customer is to the cabinet.
Unlike FTTP, FTTN uses existing coaxial or twisted-pair infrastructure to provide last mile services and is therefore less expensive to deploy. However, in the long term, its bandwidth is limited compared to implementations that bring potential fiber closer to consumers.
A variant of this technique is used in hybrid fiber-coaxial (HFC) systems for cable television providers. It is sometimes abbreviated as FTTLA (fiber-to-the-last-amplifier) which replaces the last analog amplifier before the customer (or the customer’s neighborhood).
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FTTC allows the delivery of broadband services such as high-speed internet. Usually, the existing wire is used with a communication protocol such as broadband cable access (typically DOCSIS) or DSL connecting the curb/cabinet and the customer. In this protocol, data rates vary depending on the exact protocol used and how close the customer is to the cabinet.
Where it is feasible to run new cables, both fiber and copper Ethernet are capable of adding “curbs” with full 100Mbit/s or 1Gbit/s connections. All Ethernet protocols are supported, including Power over Ethernet (PoE), using relatively inexpensive outdoor Category 5 copper over thousands of feet.
. Most fixed wireless technologies, including the Motorola Canopy, rely on PoE, with low-power radios capable of running on 12VDC power supplies that run several hundred feet of cable.
Power line networking deployments also rely on FTTC. Using the IEEE P1901 protocol (or its predecessor HomePlug AV) existing electrical service cables are routed from the curb/pole/cabinet to every AC electrical outlet in the home at up to 1Gbit/s—coverage equivalent to a robust Wi-Fi implementation. The added benefit of a single cable for power and data.
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By avoiding new cable and its cost and liabilities, FTTC costs less to deploy. However, it has historically had a lower bandwidth potential than FTTP. In practice, the relative advantage of fiber depends on the bandwidth available for backhaul, usage-based billing restrictions that prevent full use of last-mile capacity, and customer premises equipment and maintenance restrictions and the cost of running fiber that can vary widely. Geography and building type.
In the United States and Canada, the largest deployment of FTTC was by BellSouth Telecommunications. With the acquisition of BellSouth by AT&T, the deployment of FTTC d. Future deployments will be based on FTTN or FTTP. Existing FTTC plant can be removed and replaced with FTTP.
Verizon, meanwhile, announced in March 2010 that it was discontinuing Verizon FiOS expansion, contracting to complete its network in areas that already have FiOS franchisees but not deploying to new areas, indicating that FTTH beyond these areas is economically unviable. is
Verizon also announced its effort (at CES 2010).
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