Motorola PTP 600 Series - page 139

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For example, when histogram 1 fills up and starts to overflow the first minute of overflow is
analyzed and the maximum, minimum and mean over that minute are computed and inserted
into histogram 2. When histogram 2 fills up and starts to overflow the first hour of overflow is
analyzed and the maximum, minimum and mean over that hour is computed and inserted into
histogram 3. When histogram 3 start to overflow the overflow data is simply discarded.
8.3.11.1 Diagnostic Plotter
New for the PTP 600 Series is the system administration diagnostic plotter facility see Figure
71.
Figure 71 - Diagnostic Plotter
The diagnostic plotter allows the system administrator to view the cascading histogram data
in an easily accessible graphical form. The plot always displays three traces, maximum,
minimum and mean by default. The diagnostic selector allows the user to select the various
categories of histogram.