Used in ISDN. Data or voice information is transmitted on the B-channels of an ISDN line at 64kpbs. The B-channel refers to the frequency range of transmissions on a copper pair; ...

Cable and connecting hardware that provides interconnections between telecommunications rooms, equipment rooms, and entrance facilities.

An intermediate data network connecting two or more LANs.

The physical/electrical interconnections between telecommunications closets and equipment rooms. Cross-connect hardware and cabling in the Main and Intermediate Cross-Connects are considered part of the backbone wiring.

A balanced-to-unbalanced circuit coupling device, used to convert from unbalanced to balanced transmission, and provides impedance matching for connecting twisted-pair to coaxial cable.

The difference between the highest and the lowest frequencies of a transmission channel (path for information transmission). Identifies the amount of data that can be sent through a given channel. Measured ...

Provides eight additional circuits for Toshiba 3000 and/or 2000-series digital telephones. Attaches to BDKU.

Provides eight circuits for 3000 and/or 2000-series digital telephones (BDKU) + eight more with BDKS (optional). Also supports stand-alone digital cordless telephone, DDSS console, BATI, DDCB and supports large LCD (DKT3014) ...

Allows customer-supplied music to be sent to telephone speakers and external speakers.

BICSI is a non-profit professional association for the promotion of telecom industry standards.

In digital applications, the percentage of bits received in error to the total number of bits received. Usually expressed as a number to the power of 10. For example, 10 to ...

Transmission of a binary signal measured in b/s.

A series of binary digits (zeros and ones) representing the message being transferred between devices.

Building Owners Management Association

A written obligation under seal to guarantee that specific documents are accurate, or that the bonded party will do (or not do) specified things, in a specific way, within a specified ...

Cable Multifiber cables where each optical fiber is further protected by an additional jacket and optional strength elements.

ISDN line with 2B + 1D channel. BRI lines can have a U-interface with RJ11 jacks and single twisted pair wiring, or RJ45 four pair S/T interface wiring.

A general term for transmission of signals that have wide bandwidth (e.g., integrated services digital network) or multiple modulated channels (e.g., 10BROAD-36).

The transmission of multiple signals on a medium at the same time, sharing the entire bandwidth of the medium. The signals are multiplexed into channels with a bandwidth of 6 kHz ...

A technique for sending data simultaneously to all devices attached to a network with a single transmission.

Program defect or error.