1. A new and growing body of standards that define all aspects of transporting and managing digital traffic over fiber-optic facilities in the public network. 2. (IRM) A network communication technology offering fiber optic transmission system for high-speed digital traffic.
Standards for transmitting digital information over optical networks. Fiber optic transmission rates range from 51.84 Mbps to 13.22 Gbps. It defines a physical interface, optical line rates known as Optical Carrier (OC) signals, frame formats and a OAM&P (Operations, Administration, Maintenance and Provisioning) protocol. The base rate is known as OC-1 and runs at 51.84 Mbps. Higher rates are a multiple of this such that OC-12 is equal to 622 Mbps (12 times 51.84 Mbps)
Fiber optic lines used for point-to-point high speed transmission of data using 51.8 Mbps as a central building block up to 2 Gbps.
a standard for optical transport that defines optical carrier levels and their electrically equivalent synchronous transport signals; SONET allows for a multivendor environment and positions the netwo
Broadband networking standard in the United States.
An optical interface standard that allows different digital signals to be transported using a base transmission rate of 51.84 megabits per second OC-1 ( Optical Carrier) / STS-1 ( Synchronous Transport Signal). Higher rates are direct multiples of the basic OC-1 building block.
An international set of standards for the transmission of digital information over optical interfaces. The "synchronous" designation refers to the characteristic that portions of the data stream may be cross-connected to other portions without demultiplexing. That is, all component portions of the SONET signal may be tied to a single reference clock.
SONET is an optical interface standard to transport digital signals that allows inter-working of transmission products from multiple vendors. Among other things, it defines optical line rates known as optical carrier (OC) signals; the base rate is 51.84Mbps (OC-1), with higher rates being direct multiples of the base rate. (For example, OC-3 runs at 155.52 Mbps, or three times the rate of OC-1.)
SONET is a Bellcore specification currently used in worldwide public data networks (PDNs). It defines a synchronous optical network-based user-network interface (UNI), either public or private, operating at speeds from 51 Mbps to 2 Gbps over single-mode optical fiber.
A Bellcore and ANSI standard that defines transmission of synchronous and time sensitive (ex: real time video) information. SONET provides a way for worldwide carriers to connect equipment.
Broadband transport system over fiber optic, configured in a ring. If a fiber is cut, the ring allows it to reroute traffic with no service interruption. Becoming the CLEC's network construction mainstay, replacing copper twisted pair outside plant.
A set of ANSI synchronous digital hierarchy standards for fibre-optic networks. It uses STS-1 (51.84Mbps) as the basic building block for multiplexing and transmitting voice, data and video.
Physical layer communication facilities, using fiber optics, on which broadband ISDN services are based. OC-1 SONET provides 51 Mbps, OC-3 SONET provides a 155 Mbps data rate, OC-12 SONET provides a 622 Mbps data rate, and OC-48 SONET provides a 2.4 Gbps data rate.
A standard for a high-speed (45-Mbps to 1.5 Gbps) optical transmission network.
A set of standards under development, aimed at synchronizing the information carried on an optical fiber network. T1 25 voice channels digitized at 64,000 bpd, combined into a single 1 (one).
A family of fiber optic transmission rates from 51.84 million bits per second to 13.27 gigabits per second; created to provide the flexibility needed to transport many digital signals with different capacities and to provide design standards for manufacturers.
U.S. standard for fiber optic transmission designed to interface with conventional telco infrastructure as well as various international standards. ATM commonly is run as a layer on top of SONET. SONET data rates can reach as much as 20 Gbps. Back to 3G Third generation cellular transmission. Analog cellular technologies introduced in 1984 represent the first generation, and digital cellular /Personal Communications Services introduced in the 1990s represent the second generation. The next generation of digital technologies will support mobile voice service, as well as Internet access at data rates from 150 kbps (at highway speeds) to 2 Mbps or higher (fixed service). By comparison, current second generation technologies achieve maximum speeds of only 14.4 kbps. Some wireless companies are deploying interim "2.5G" technologies that offer Internet access at speeds up to about 100 kbps.
(SONET) Transport network for synchronously multiplexed tributary signals. The standard defines a set of transmission rates, signals and interfaces for fiber optic transmission. The broadband fiber network which supports SONET, formed by a family of network elements conforming to the SONET interface requirements. The basic electrical signal runs at 51.840Mbps, approximately 51 times the bandwidth of a standard US, T1 leased line running at 1.544Mbps. SONET grows in multiples of the basic signal into the multi-Gigabit range. SONET has the feature of adding and dropping lower bit-rate signals from the higher bit-rate signal without needing electrical demultiplexing.
The technology at each end of an optical fiber system that connects, or interfaces, those fibers to the rest of a system.
Synchronous Optical NETwork (SONET) ring architecture. In the event of a fiber cut, data in transmission is automatically rerouted to reach its destination via another path. Transmission Control Protocol (TCP) A connection-oriented, reliable delivery byte-stream transport layer communication protocol. The intermediate layer between the Internet Protocol below it, and an application above it.
A standard for fibre optic telecommunications interfaces.