Verilink AS2000: The Basics (880-502981-001) Product Manual Uživatelský manuál stáhnout pdf (Strana 142)

Acronyms and Definitions

Glossary-22 Verilink Access System 2000: Basics

Frame Relay Access Device (FRAD) The device which adds control bits

to end-user data to create frames

in the frame relay standard format

and then transmit them toward the

network. The FRAD at the receiving

end strips away these control bits

in order to present the original

data to the end-user device. A

FRAD can be a standalone unit, or

part of a switch, router,

mulitiplexer, etc.

frame relay frame A variable length unit of data in

standard frame relay format for

transmission through a frame relay

network.

framing bits Bits used within the frame

alignment signal.

front-end processor A special purpose computer

dedicated to handling

communication links for a host

computer.

FS Failed second. See

unavailable

second (UAS)

FSS See

failed signal state (FSS)

FT1 See

fractional T1

full duplex Communications in which both

end points can send at the same

time.

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Verilink AS2000: The Basics (880-502981-001) Product Manual Uživatelský manuál Strana 142