Lucent Technologies LambdaXtreme Alarm Messages And Trouble Clearing Manual page 394

Provisioning
Placing and configuring hardware and software required to activate a telecommunications
service for a customer. If the equipment is in place, provisioning may consist of creating or
modifying a customer record in a database to activate the services.
Pulse Spreading
The dispersion of an optical signal as it propagates through an optical fiber.
Pump laser
A laser used in an optical fiber amplifier.
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Q QoS (Quality of Service)
A set of performance parameters that characterize the transmission quality over a given virtual
connection.
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R Raman Amplification
A technique in which high-power laser light is sent into the outside plant fiber (OSP)
transforming part of the fiber itself into an amplifier.
Rayleigh Scattering
The scattering of light that results from small inhomogeneties of material density or
composition.
RBOC (Regional Bell Operating Company)
One of the seven regional holding companies formed after the AT&T divestiture. These
companies included Ameritech, Bell Atlantic, BellSouth, NYNEX, Pacific Telesis, Southwestern
Bell, and U.S. West. Later on, Bell Atlantic and NYNEX merged and became Verizon;
Ameritech, Pacific Telesis and Southwestern Bell merged and became SBC; and U.S. West was
renamed Quest.
RDI (Remote Defect Indication)
RDI signals convey the defect status of the trail signal at the trail destination (that is, at trail
termination sink function) back to the trail origin (that is, trail termination source function).
This mechanism allows alignment of the near-end and far-end performance monitoring
processes.
Receiver
A terminal device that includes a detector and signal processing electronics. It functions as an
optical-to-electrical converter.
Receiver Overload
The maximum acceptable value of average received power for an acceptable BER or
performance.
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G L O S S A R Y
G L - 2 4
Lucent Technologies - Proprietary
See notice on first page
365-575-783R1.1
Issue 1, June 2002