Alcatel-Lucent 1643 AMS User's Operation Manual page 705

Glossary
QAF
Q-Adapter Function (in NE)
QOS
Quality Of Service
Quality Level (QL)
The quality of the timing signal(s) that are provided to clock a network element. The
level is provided by the Synchronization Status Marker which can accompany the timing
signal. If the System and Output Timing Quality Level mode is "Enabled", and if the
signal selected for the Station-Clock Output has a quality level below the Acceptance
Quality Level, the network element "squelches" the Station-Clock Output Signal, which
means that no signal is forwarded at all. Possible levels are: - PRC (Primary Reference
Clock) - SSU_T (Synchronization Supply Unit - Transit) - SSU_L (Synchronization
Supply Unit - Local) - SEC (SDH Equipment Clock) - DUS (Do not Use for
Synchronization).
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R RA
Regenerator Application
Radio Protection Switching system (RPS)
The main function of the RPS is to handle the automatic and manual switching from a
main channel to a common protection channel in an N+1 system.
Radio Relay (RR)
A point-to-point Digital Radio system to transport STM-1 signals via microwaves.
RCU
Rigid Connect Unit
RCVR Data Distribution Unit (RCVR)
Radio Relay circuit pack that distributes of the protection channel and the low-priority
traffic in the receiver side.
RDDU
RCVR Data Distribution Unit
RDI
Remote Defect Indicator. Previously known as Far End Receive Failure (FERF).
RDI
Ring Drop/Insert (Add-Drop)
RDSV
Running Digital Sum Violations
Receive-direction
The direction towards the cross-connect.
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365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
GL-25