Alcatel-Lucent 1643 AMS User's Operation Manual page 701

Glossary
OC-n
Optical Carrier, Level n
ODF
Optical Distribution Frame
ODU
Optical Demultiplexer Unit
OFS
Out of Frame Second
OI
Optical Interface
OMU
Optical Multiplexer Unit
OOF
Out Of Frame
OOS
Out Of Service
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 lightwave 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 comprised of items such as: scrollbars, menus, radio buttons, etc.
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365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
GL-21