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Making Measurements
Performing an SONET Alarm Scan
Performing an 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, RDI-P, AIS-P,
VT-1.5: LOP-P, AIS-P, RDI-P, H4 LOM, LOP-V, AIS-V, RDI-V
TIP: The SONET Alarm Scan display can be logged to the chosen logging
device. See "Logging on Demand " page 110.
HOW TO: 1 Set up the receive SONET interface and payload as required. See
“Setting SONET Receive Interface” page 17.
2 Choose on the display.
3 Choose 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.
4 Choose the CV error threshold.
5 Choose to start the Alarm Scan.
SONET ALM SCAN
RESULTS
RECEIVE
SONET
START