An enclosed container with four rails used for mounting a wide variety of miscellaneous equipment inside them (e.g., fans, power strips, connection devices, terminations, apparatus, wiring, equipment, etc.). They are available ...

A fixed length of cable with connectors installed on both ends. Sometimes called a patch cord, patch cable or jumper.

A combination of conduits, cable trays, support hooks, tie wraps, and any other hardware pieces used in a cabling installation to support cables. Cable support systems keep excess stress off the ...

A support mechanism used to route and support telecommunications cable or power cable. Typically equipped with sides that allow cables to be placed within the sides over its entire length.

Task of verifying test equipment against a reference to ensure proper operation.

Feature that allows calls to be rerouted automatically from one line to another.

Feature activated when a telephone line is busy and the incoming call is placed in queue; the call is automatically put through when the line becomes available.

A device used for pulling cable.

Company authorized by appropriate state or federal regulatory agencies to provide telecommunications services.

A category of performance for inside wire and cable systems. Commonly used for voice applications and data to 10Mbps

A category of performance for inside wire and cable systems. Used in support of voice and data applications requiring a carrier frequency of up to 100 MHz.

A category of performance for inside wire and cable. Used in support of signaling rates of up to 100MHz over distances of up to 100 meters. Calls for tighter twists, electrical ...

A cable standard for Unshielded Twisted Pair (UTP) supporting signaling rates up to 250 MHz. Applications include 1000Base-T, ATM, Gigabit Ethernet and applications under development.

Also referred to as 10G or 10Gigabit Ethernet. A cable standard for Unshielded Twisted Pair (UTP) supporting signaling rates up to 500 MHz. Applications include 10GBase-T, ATM, 10 Gigabit Ethernet, VoIP, ...

A type of PBX service in which switching occurs at a local telephone station instead of at the company premises.

The electrical or optical path used for communications between two devices.

A network device that requests services from a server.

A collection of servers and associated storage devices interconnected using a dedicated, high-speed network. The collection appears as a single device to the network and all incoming requests are divided among ...

Also known as a bus star topology. It is like a tree topology, except that there are clusters of devices at the end of each branch.

Telephone company facility where subscribers’ lines are joined to switching equipment for connection to each other, locally and long distance. Sometimes the same as the overseas term “public exchange”.

A cable composed of an insulated central conducting wire wrapped in another cylindrical conductor (the shield). The whole thing is usually wrapped in another insulating layer and an outer protective layer. ...

A rigid or flexible metallic or non-metallic raceway of circular cross-section through which cables can be pulled.

The process of communicating among users over a network in real-time, using any combination of text, voice, and video.

Also called a terminal block, punch-down block, quick-connect block, or cross-connect block, this plastic block contains metal wiring terminals to establish connections from one group of wires to another. Usually each ...

A device that connects wires or fibers in cable to equipment or other wires or fibers. Wire and optical connectors most often join transmission media to equipment or cross connects. Connectors ...

A person or company contracted to perform a specific task.

A type of repeater that changes the data signal from one transmission medium type to another (e.g., from copper to optical fiber).

A device for connecting two other devices, such as connectorized cables, together.

A device that is used to connect two sections of conduit together.

Access arrangement where long-distance customers assume responsibility for coordinating, ordering, installing and maintaining the local loop.

All telecommunications devices (except pay phones) and wiring that is located at the user’s location.

Distribution system equipment used to terminate and administer communication circuits. In a wire cross-connect, jumper wires or patch cords are used to make circuit connections. In an optical cross-connect, fiber patch ...

An organization that provides outbound services such as: technical assistance, help lines, product or account information, location of dealers, emergency responses, service information or complain handling.

The process of switching from old network components to new network components. This term is used when describing the switch of a piece of equipment (e.g., a computer terminal or telephone) ...