Alcatel-Lucent 1643 AMS Applications And Planning Manual page 310

Glossary
Regenerator Overhead Controller (ROC)
SLM circuit pack that provides user access to the SDH overhead channels at repeater
sites.
Regenerator Section Termination (RST)
Function that generates the Regenerator Section Overhead (RSOH) in the transmit
direction and terminates the RSOH in the receive direction.
REI
Remote Error Indication. Previously known as Far End Block Error (FEBE).
Relay Unit (RU)
Radio Relay circuit pack whose main function is to perform protection switching when
the Alignment Switch in the demodulator unit is unable to perform protection switching.
Restore Timer
Counts down the time (in minutes) during which the switch waits to let the worker line
recover before switching back to it. This option can be set to prevent the protection
switch continually switching if a line has a continual transient fault. This field is greyed
out if the mode is non-revertive.
Revertive Switching
In revertive switching, there is a working and protection high speed line, circuit pack,
etc. When a protection switch occurs, the protection line, circuit pack, etc. is selected.
When the fault clears, service reverts back to the original working line.
RF
Radio Frequency
RFI
Remote-Failure Indicator
RGU
ReGenerator Unit
Route
A series of contiguous digital sections.
RPS
Ring Protection Switching
RSOH
Regenerator-Section OverHead; part of the SOH.
RZ
Return to Zero
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S SA
Service Affecting Synchronous Adapter
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GL-26 Alcatel-Lucent - Proprietary
See notice on first page
365-312-801R7.2
Issue 3, May 2007