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Glossary
Glossary-93920-A2-GN31-30 November 1996
TDM Time Division Multiplexer.
A device that enables the simultaneous transmission of
multiple independent data streams into a single high-speed data stream by
simultaneously sampling the independent data streams and combining these samples to
form the high-speed stream.
TMp Trellis Multipoint. Paradyne’s proprietary high speed, fast poll multipoint modulation
scheme.
Top-Level menu The very top of the menu tree that displays modem status and all Top-Level menu
branches.
training
A process where two modems try to establish a connection over the VF line.
trellis-coded modulation A modulation scheme developed by Paradyne which uses Forward Error Correction for
multipoint and high-speed point-to-point applications.
tributary modem Tributary modems in a network receive data from the control modem, as well as from the
network management system in the network.
UL Underwriter’s Laboratories, Inc.
UNIX Dial
A factory preset configuration area containing the configuration options most often used
in a UNIXr dial network.
upstream modem
A device connected “closer” to the host computer
.
USOC Universal Service Ordering Codes.
V.22 A CCITT standard for modems operating full-duplex over dial networks at 1200 bps.
V.22bis A CCITT standard for modems operating full-duplex over leased lines or dial networks
at 2400 bps.
V.27bis A CCITT standard for modems operating over leased lines at 2400 or 4800 bps.
V. 2 9 A CCITT standard for modems operating over leased lines at 4800, 7200, or 9600 bps.
V.32 A CCITT standard for modems operating full-duplex with asynchronous or synchronous
data over leased lines or dial networks at 4800 or 9600 bps.
V.32bis A CCITT standard for modems operating full-duplex with asynchronous or synchronous
data over leased lines or dial networks at 4800, 7200, 9600, 12,000, or 14,400 bps.
V.32 terbo
A modulation that adds the 19,200 bps and 16,800 bps data rates to the V
.32bis data
rates. It is a Paradyne proprietary modulation, not a CCITT standard.
V.34 A CCITT standard for modems operating full-duplex with asynchronous or synchronous
data over leased lines or dial networks at 28,800, 26,400, 24,000, 21,600, 19,200, 16,800,
14,400, 12,000, 9600, 7200, 4800, 2400 bps.
V.42 A CCITT standard for error control protocol.
V.42bis A CCITT standard for data compression.
V.54 A CCITT standard for local and remote diagnostic loopback tests.