Operations Manual

Product Glossary - R0.1 glossary-5
CONFIDENTIAL & PROPRIETARY
D
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C
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CPU
See Central Processing Unit (CPU).
Crane rain model
System of formulas, charts, and maps developed by Dr. Robert K. Crane to
depict a global prediction of attenuation caused by rain. See also rain
attenuation.
Customer Premise Equipment (CPE)
Equipment (such as telephones and computers) installed at a customer’s site.
customer site
Network equipment configuration for a location at which network access is
provided in a carrier’s consecutive point network.
D
dB
Decibel. The unit of measurement for signal strength, usually the ratio
between a transmitted signal and a standard signal source.
decibel (dB)
See dB.
demarcation point
Logical dividing point between equipment and a network.
E
Element Management System (EMS)
Software application used to manage network equipment.
EMS
See Element Management System (EMS).
Ethernet
Generic term for the IEEE 802.3 standard network transmission protocol.
exciter
An oscillator that enables a tuner to change its frequency.
F
fade margin
Amount of signal reduction a receiver can tolerate and continue to maintain
satisfactory performance.