Motorola PTP 600 Series ユーザーズマニュアル

 

 

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Set Date: Displays the current date. The year, month and day can be set using the drop-

down selection boxes. 

Time Zone: See section 8.3.10.6. 

Daylight Saving: See section 8.3.10.6. 

8.3.11 Diagnostics 

To further enhance the diagnostic capabilities of the PTP 600 Series, the storage of link 

performance histograms has been extended to 31. To optimize RAM (volatile memory) usage 

a cascading histogram approach has been adopted. The root histogram is identical to the 

histograms in 58100 that is data is stored for one hour at a resolution of one second. In 58100 

the histograms were simple cyclic buffers which never stored more that the last one hour of 

data. The new cascading histogram approach daisy chains multiple histograms together. 

When the first histogram fills up the overflow from the first is used as an input to the next 

histogram in line. To optimize memory utilization a statistical analysis is performed on the 

overflow to reduce the amount of data to be stored. In the case of the PTP 600 Series the 

cascading histograms are defined as: 

•  Histogram 1: 1 hour at a resolution of 1 second 
•  Histogram 2: 24 hours at a resolution of 1 minute 
•  Histogram 3: 30 Days at a resolution of 1 hour