Alcatel-Lucent 1643 AMS Operation Manual page 373

Glossary
An indication returned to a transmitting network element that the receiving network
element has detected an incoming section failure.
Remote Error Indication (REI)
(formerly → FEBE)
An indication returned to the transmitting node that an errored block has been detected
at the receiving node.
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
RSM
Remote Switching Module
RSOH
Regenerator-Section OverHead; part of the SOH.
RSTTP
Regenerator Section Trail Termination Point
RZ
Return to Zero
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S SA
Service Affecting Synchronous Adapter
SAI
Station Alarm Interface
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365-312-803R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
GL-27