plenum cable
<hardware>
Cable that can be (legally) installed in the plenum (the space between a ceiling and the floor above it). Such cable is (usually) teflon-coated so that it will not give off toxic fumes when burned. In some parts of the world such cable is required by law.
Last updated: 1996-08-25
pleonasm
Redundancy of expression; tautology.Last updated: 1995-03-25
plesiochronous
Nearly synchronised, a term describing a communication system where transmitted signals have the same nominal digital rate but are synchronised on different clocks.
According to ITU-T standards, corresponding signals are plesiochronous if their significant instants occur at nominally the same rate, with any variation in rate being constrained within specified limits. [Pronunciation? /ples'ee-oh-kroh'nus/?]Last updated: 1995-03-02
Plesiochronous Digital Hierarchy
(PDH) A transmission system for voice communication using plesiochronous synchronisation.
PDH is the conventional multiplexing technology for network transmission systems. The transmitter adds dummy information bits to allow multiple channels to be bit interleaved. The receiver discards these bits once the signals have been demultiplexed. PDH combines multiple 2 Mb/s (E1) channels in Europe and 1.544 Mb/s (DS1) channels in the US and Japan. PDH is being replaced by SONET and other SDH (Synchronous Digital Hierarchy) schemes.Last updated: 2003-09-30
Pleuk grammar development system
A shell for grammar development by Jo Calder <[email protected]>, Kevin Humphreys <[email protected]>, Chris Brew <[email protected]>, and Mike Reape <[email protected]>. It handles various grammatical formalisms and requires SICStus Prolog version 2.1#6 or later.
ftp://ai.uga.edu/ai.natural.language/. E-mail: <[email protected]>.Last updated: 2000-07-22
Plexus
A modular web server written in Perl by Tony Sanders <[email protected]>. Comes with interfaces to allow many other information services to be served via the Web. Version 3.0m 1994-07-22.Last updated: 1994-07-22
Nearby terms:
PL Cornell ♦ PLD ♦ plenum cable ♦ pleonasm ♦ plesiochronous ♦ Plesiochronous Digital Hierarchy
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