101
Making Measurements
Performing a SONET Alarm Scan
Performing a SONET Alarm Scan
Description SONET Alarm Scan tests each channel for alarm free operation and
identifies and indicates any Unequipped channels.
You can configure the Scan to check for the occurrence of any Path layer
CV errors above a chosen threshold.
The channel in which an alarm occurred is highlighted if any of the
following alarms occur:
STS-SPE:LOP-P, AIS-P, RDI-P.
VT-1.5: LOP-P, AIS-P, RDI-P, H4 LOM, LOP-V, AIS-V, RDI-V.
HOW TO: 1 Set up the SONET receive interface and payload as required.
2 Press the key and select . Set the field
at the top right of the display to AUTO or RX SETTINGS.
RX SETTINGS: The scan checks the structure set on the
display.
AUTO: The scan checks the structure being received. This can be
particularly useful when receiving mixed payloads.
RESULTS
SONET ALM SCAN
RECEIVE
SONET
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