Cisco Prisma II Hybrid Amplifier Installation Manual page 176

Hybrid amplifier
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Glossary
DOCSIS
data over cable service interface specification.
E
EDFA
erbium doped fiber amplifier. Optical fibers doped with the rare earth element, erbium,
which can amplify light in the 1550 nm region when pumped by an external light source.
EIA
Electronic Industries Association. A United States association that provides standards for use
between manufacturers and purchasers of electronic products.
EMC
electromagnetic compatibility. A measure of equipment tolerance to external electromagnetic
fields.
EMS
Element Management System. A system that controls a single element, or many elements of a
single type. Usually works up into a full network management system (NMS).
EMT
externally-modulated transmitter.
ESD
electrostatic discharge. Discharge of stored static electricity that can damage electronic
equipment and impair electrical circuitry, resulting in complete or intermittent failures.
F
FTTP
fiber-to-the-premises. Fiber optic service to the subscriber's premises.
H
HFC
hybrid fiber/coaxial. A network that uses a combination of fiber optics and coaxial cable to
transport signals from one place to another. A broadband network using standard cable
television transmission components, such as optical transmitters and receivers, coaxial cable,
amplifiers, and power supplies. The broadband output stream is transmitted as an optical
signal, over the high-speed, fiber optic transmission lines to local service areas where it is
split, converted to electrical RF signals, and distributed to set-tops over coaxial cable.
I
I/O
input/output.
150
78-4025693-01 Rev D

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