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Federal Communications Commission. A U.S. government agency that regulates interstate and
FCC
foreign communications. The FCC sets rates for communication services, determines standards for
equipment, and controls broadcast licensing.
See FCC.
Federal
Communications
Commission
Use on coaxial cables to reduce the radiation/EMI susceptibility to high frequency noise.
ferrite
See FRU.
field replaceable
unit
See FTP.
File Transfer
Protocol
Software instructions set permanently or semi-permanently in ROM.
firmware
A special type of EPROM that can be used and reprogrammed in blocks instead of one byte at a time.
flash memory
frequency modulation. Modulation technique in which signals of different frequencies represent
FM
different data values. Compare with AM and PAM. See also modulation.
A packet as it is transmitted over a serial line. The term derives from character-oriented protocols that
frame
involved the addition of special start-of-frame and end-of-frame characters for packet transmission.
See FM.
frequency
modulation
field replaceable unit. Hardware component that can be removed and replaced on-site. Typical FRUs
FRU
include cards, modules, PEMs, and some chassis components. When FRUs are removed from the
chassis, service is interrupted for some or all of the system.
File Transfer Protocol. The application protocol used to transfer files between network nodes.
FTP
G
Also known as G.dmt.
G.992.1
The ITU standard for line coding and framing for splitterless, reduced spectrum ADSL. Also known
G.992.2
as G.lite.
The ITU standard for signaling, identification, and negotiation between broadband systems; an
G.994.1
integral part of G.dmt and G.lite. Also known as G.hs.
The ITU standard for performance monitoring on DMT access technologies.
G.997.1
Pseudonym for G.992.1.
G.dmt
Pseudonym for G.994.1.
G.hs
Pseudonym for G.992.2.
G.lite
OL-2365-02
Cisco 6260 Hardware Installation Guide
Glossary
GL-15
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