Hayes ADSL Duo Modem User Manual page 75

Monitor period Sets the Monitor Interval shown on the
System Status page.
The default is 60 seconds. Type a new value
in seconds.
Enable CRC 1 = Displays error counts in the CRC
History History box below.
0 (the default) = Disables error count
display.
CRC Monitor Sets the first sample period for the CRC
Period 1 error count displayed in the box below.
The default is 15 minutes. Type a new value
in minutes.
CRC Monitor The second sample period for the CRC
Period 2 error count displayed in the box below.
The default is 24 hours. Type a new value
in hours.
Click Update to refresh the display.
The CRC History box displays the errors of each 15-minute
period, for the past 1500 minutes. You can adjust the 15-minute
period in the CRC Monitor Period 1 field described above. Note:
a maximum of 100 intervals are recorded and the 1500 minutes
value is therefore dependent on the interval time used.
To enable the display of CRC history, you must set the Enable
CRC History parameter to 1.
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