A multifiber fiber-optic cable design in which individual fibers, usually tight-buffered, are surrounded by separate strength members and jackets, which are in turn enveloped by a common jacket.
Note 1: The breakout cable facilitates easy installation of fiber-optic connectors. All that need be done to prepare the ends of the cable to receive connectors is to remove the outer jacket,… (Read More →)

A kit of materials, composed of an outer jacket in which is contained a strength member consisting of a bundle of usually aramid yarn, which jacket and yarn may be slipped over a loose buffer tube containing a single fiber, to convert the buffer tube and fiber to a complete single-fiber cable to which a fiber-optic connector may be directly… (Read More →)

For a plane electromagnetic wavefront incident on a plane boundary between two dielectric media having different refractive indices, the angle of incidence at which transmittance from one medium to the other is unity when the wavefront is linearly polarized with its electric vector parallel to the plane of incidence.
Note 1: Brewster's angle _B, is given by where n₁ and… (Read More →)

See Brewster's angle.

Abbreviation for basic rate interface.

An informal name for a hand-held radiotelephone unit. Synonymsradio personal terminal.

A low-pass filter with a steep cut-off (such as 20 dB/octave or greater), such that a negligible amount of higher frequency information passes.
Note: A brick wall filter typically has uniform group delay. [After SMPTE]

1. In communications networks, a device that (a) links or routes signals from one ring or bus to another or from one network to another, (b) may extend the distance span and capacity of a single LAN system, (c) performs no modification to packets or messages, (d) operates at the data-link layer of the OSI--Reference Model (Layer 2), (e) reads… (Read More →)

A device that electrically or physically removes bridged telephone pairs.
Note: Relays, saturable inductors, and semiconductors are used as bridge lifters.

Synonym hybrid coil.