Alcatel-Lucent 1643 AMS Operation Manual page 368

Glossary
Operations System (OS)
The Operations System is the system that provides operations, administration, and
maintenance functions.
Operator
A user of the ITM-SC application with Operator privileges. See also User Privilege.
Optical Line System (OLS)
A high-capacity light wave system that is designed to multiplex eight optical signals
with different wavelengths into one combined signal through an optical fiber. There is a
difference of 1.5 micrometer in wavelength between two multiplexed signals.
OS
Operations System - A central computer-based system that is used to provide operations,
administration, and maintenance functions.
OSB
Optical Splice Box
OSF
Open Software Foundation Operations System Function
OSF/Motif
The WaveStar® ITM-SC application has an X-windows graphical representation and the
components used in the "Graphical User Interface" are OSF/Motif compliant, these
components that are comprise of items such as: scrollbars, menus, radio buttons, etc.
OSI
Open Systems Interconnection
OW
(Engineering) Order Wire
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P P11s
DS-1 framed, 1554 kbit/s
P12s
PDH framed, 2,048 Mbit/s (E1); synchronous 2048-kbit/s PDH path layer
PABX
Private Automatic Branch eXchange
Paddle Board - Peripheral Control and Timing link (PB-PCT)
A small circuit board used in a 5ESS exchange for protection switching and optical to
electrical conversion of the PCT-link.
Path
A logical connection between one termination point at which a standard format for a
signal at the given rate is assembled and from which the signal is transmitted, and
another termination point at which the received standard frame format for the signal is
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GL-22 Alcatel-Lucent - Proprietary
See notice on first page
365-312-803R7.2
Issue 4, May 2007