Reference
Viewing Alarm Status Use the Status Display mode to view current alarm conditions. Use the Event Log to view past alarm conditions. Refer to Status Displays on page
Error Detection When the instrument is in the Eye / Jitter operating mode, all enabled alarms are Limitations detected and reported except for the following alarms: RGB Gamut, Composite
Gamut, and Closed Caption Presence. Detection of analog (line 21) closed caption does not operate if the instrument is in Data mode or in Multi mode when the Data display is selected as one of the displays.
Eye Measurement Alarms. When enabled, the eye measurement alarms will be reported to the Event Log in only the following two conditions:
HWhen the Eye display is selected and the eye measurement readout is turned on
HWhen the Event Log or Alarm Status displays are selected after the eye measurement readout is turned on
That is, if you enter the Eye display and turn on the eye measurements, and then you use the STATUS button to view the Event Log or Alarm Status displays, the eye measurement alarms will be active. If you select another display mode such as Jitter or Waveform, the eye measurement alarms will be disabled.
Jitter Measurement Alarm. When enabled, the Jitter alarm will be reported to the
Event Log in only the following two conditions:
HWhen the Jitter display is selected
HWhen the Event Log or Alarm Status displays are selected after the Jitter display is selected
That is, if you enter the Jitter display and then use the STATUS button to view the Event Log or Alarm Status displays, the jitter measurement alarm will be active. If you select another display mode such as Eye or Waveform, the jitter measurement alarm will be disabled.
WFM700 Series Waveform Monitors User Manual | 3- 3 |