Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
Rev Version 1.0.12-Beta7
www.cooperbussmann.com/wirelessresources
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Figure 66 - Channel Utilisation Minutes
The third screen shot shows the average Channel utilisation for each minute up to one hour. It will also give a running
average for the total number of minutes up to 59 minutes.
Figure 67 - Background Noise Minutes
The next screen shot shows the running radio background average noise level for each minute up to 59 minutes.
The Channel Survey page also shows two other screen shots (not shown here) which indicate the Percent Channel
Utilisation and Noise Floor in one hour intervals. The screens will only show the last 60 hour period.
Custom Survey
4.4
Custom Survey is made up of two separate charts that can be configured to display different radio channel characteristics
over three different time scales (Seconds, Minutes or Hours).
The custom survey is essentially the same as the channel survey (explained in the previous section) except it allows
different channel related data to be displayed which is useful for diagnosing channel utilisations problems.
The default selection on the custom page will display the total percentage of transmitted frames over a 60 second period
in chart one and the total percentage of received frames over a 60 second period in chart two. From this default view we
can determine if there are too many transmissions being sent from this radio or if there is too much radio messages being
received from other sites in the radio network.
To display different d
to
refresh the chart.
As there are two separate charts different data values can be displayed and compared at the same time.
The data components available for graphing are displayed in the following table:
Custom data
Percentage of channel utilisation over the configured time period
All TX & RX Frames
All transmissions sent and received by the radio being monitored. This option is the same
as the normal channel survey which is explained in the previous section.
All TX Frames
All data frames transmitted by the radio being monitored. This is the default for chart one
and will help to segregate the overall channel utilisation into transmissions from the radio
in question or transmissions from other radios. This option encompasses TX first