Alcatel-Lucent USA Inc. ONEBTS-11 用户手册
G L O S S A R Y
G L - 1 0
401-703-454
FOA Draft Issue 1
January, 2006
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Lucent Technologies – Proprietary
Use pursuant to company instructions
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TDMA
Time Division Multiple Access. TDMA divides each carrier frequency into a
number of time slots, each of which constitutes an independent telephone circuit.
Current North American digital systems use TDMA.
Torque
Moment of force acting on a body and tending to produce rotation about an axis.
Twisted-pair cable
See Paired cable.
U
UL
(Underwriters Laboratories)
Laboratories that test materials and equipment against pre-determined
performance standards.
Upgrade
To improve service by offering better facilities.
W
Weatherproof
Designed to be used outdoors under any number of specified climatic conditions.
Z
Zero Clearance Installation
Cabinets are placed in close proximity to a wall or other structure, and the available
space behind the cabinet does not permit the installer to access the rear cabinet
mounting brackets.