Search Keyword By: U

Description

U interface

For basic-rate access in an Integrated Services Digital Network (ISDN) environment, a user-to-network interface reference point that is characterized by the use of a 2-wire-loop transmission system that (a) conveys information between the 4-wire user-to-network interface, i.e., the S/T reference point, and the local exchange, (b) is located in the servicing central office, and (c) is not as distance sensitive as a service using a T interface.

U reference point

The conceptual reference point at the network side of the network termination 1 (NT1) in a particular ISDN access arrangement. [T1.615-1992] [T1.105-1988]

UDDI

Universal Description, Discovery, and Integration

UE

1. User Equipment, 2. User Element.

UHF

Abbreviation for ultra high frequency. See electromagnetic spectrum.

UI

User Interface

UICC

Universal Integrated Circuit Card

Uimsbf

unsigned integer, most significant bit first

ULF

Abbreviation for ultra low frequency. See electromagnetic spectrum.

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