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 RESULTS display.

 

SONET ALM SCAN

 

3

Choose AUTO or RX SETTINGS.

 

 

RX SETTINGS: The scan checks the structure set on the RECEIVE

 

 

SONET

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 START to start the Alarm Scan.

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