Cambium Networks PTP 820 Series User Manual page 580

Chapter 9: TDM Services and Interfaces
Parameter
Integrity
To display the PMs in a graph format, click Graph.
Figure 339 E1/DS1 PM Page – Graph Format
Definition
Indicates whether the values received at time and date of the measured
interval are reliable. An x in the column indicates that the values are not
reliable due to a possible power surge or power failure that occurred at
that time.
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Displaying TDM PMs