Lucent Technologies LambdaUnite Installation Manual page 343

OOF
Out-of-Frame
OOS (Out-of-Service)
The circuit pack is not providing its normal service function (removed from either the working
or protection state) either because of a system problem or because the pack has been removed
from service.
OP
Optical
Open Ring Network
A network formed of a linear chain-shaped configuration of network elements. Each network
element connects to two others, one on each side, except for two network elements at the ends
which are connected on only one side. A closed ring can be formed by adding a connection
between the two end nodes.
Operations Interface
Any interface providing you with information on the system behavior or control. These include
the equipment LEDs, user panel,LambdaUnite CIT, office alarms, and all telemetry interfaces.
Operator
A user of the system with operator-level user privileges.
Optical Channel
A STM-N wavelength within an optical line signal. Multiple channels, differing by 1.5 µm in
wavelength, are multiplexed into one signal.
Optical Line Signal
A multiplexed optical signal containing multiple wavelengths or channels.
Original Value Provisioning
Preprogramming of a system's original values at the factory. These values can be overridden
using local or remote provisioning.
OS (Operations System)
A central computer-based system used to provide operations, administration, and maintenance
functions.
OSF
Open Software Foundation; Operations System Function
OSI (Open Systems Interconnection)
Referring to the OSI reference model, a logical structure for network operations standardized by
the International Standards Organization (ISO).
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Issue a, January 2002
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