A group of bits, including data and control elements, that are switched and transmitted together.

A security mechanism that examines each packet entering or exiting a network. Only the packets meeting pre-established criteria are allowed to proceed.

A data communications switching and transmission system in which an input data stream is broken down into uniform data packets. Each packet is transmitted independently between devices through the network without ...

A length of cable with connectors on one or both ends used to join telecommunications circuits/links at the cross-connect.

A facility enabling the terminating of cable elements on insulation displacement connector modules and their connections by means of a patch cord.

A means of connecting circuits via cords and connectors that can be easily disconnected and reconnected at another point. May be accomplished by using modular cords connected between jack fields or ...

A small, privately-owned version of the phone company’s larger telephone central switching office.

A protective above-ground enclosure used most commonly to house a splice point or administrative terminal location.

Equipment typically externally connected to and controlled by a PC or directly by a server. Examples include printers, CD-ROM drives, scanners and modems.

A software-defined logical connection in a switched network in which users define logical connections and required bandwidths between end points while the network technology achieves the defined connections and manages the ...

Positions of the old systems are transferred to the new system in groups.

A designated area used for transport of environmental air as part of the air distribution system. Because it is part of the air distribution system, cables installed in this space require ...

A cable with flammability and smoke characteristics that meet the safety requirements of the National Electrical Code (NEC) that allow it to be routed in a plenum area without being enclosed ...

A male component of a plug/jack connector system. In premises wiring, a plug provides the means for a user to connect communications equipment to the communications outlet.

Physical location within a local access and transport area (LATA) where an interexchange carrier’s circuits connect with the lines of the local telephone company serving that LATA.

A term used to identify a station circuit or CO line circuit location.

The basic service supplying standard single line telephones, telephone lines and access to the public switched network with no added features such as call waiting or forwarding.

Telephony term for the space occupied by a customer or authorized/joint user in a building(s) on continuous or contiguous property (except railroad rights of way, etc) not separated by a public ...

The entire wiring system on the user’s premises, especially the supporting wiring that connects the communications outlets to the network inter-face jack.

Access method to integrated services digital network (ISDN). Provides 23 B + 1 D channels operating at 1.544 Mbps.

Point-to-point telephone line for the exclusive use of one party. Same as Leased Line.

A set of rules and procedures governing the formatting of messages and the timing of their exchange between devices on a network covering addressing, transmitting, receiving and verifying.

Information that is exchanged between peer entities on a network. It contains control information and may optionally contain data.

Regulatory authority at a state level.

Refers to the use of an impact tool that enables installers to make efficient IDS style connections.