Lucent Technologies Enterprise Communications Server Comcode 108678723 Uživatelský manuál Strana 220

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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Glossary and Abbreviations
GL-4
LAPD
Link Access Protocol D-channel
LIU
Lightwave Interface Unit
LOS
Loss of signal
M
MAC
Media Access Control
MCC
Multicarrier cabinet
MDF
Main distribution frame
Meiners’ algorithm
The Meiners’ algorithm is a method to determine whether a switch can support a proposed set of
port networks in a proposed switch. This algorithm is available to Lucent engineers as a calculator
within a Microsoft Excel spreadsheet, accessible at http://info.dr.lucent.com/~meiners/atm.html
.
N
NANP
North American Numbering Plan—the numbering plan used in the U.S., Canada, and the
Caribbean, in which a number consists of a 3-digit area code plus a 7-digit “local” number (itself
divided into a 3-digit office code and a 4-digit number).
NPA
Number Plan Area—the area identified by the area code of the North American Numbering Plan.
O
OC-3
SONET (Synchronous Optical Network) optical carrier level 3 (155.52 Mbit/s).
P
PCR
Peak cell rate
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