Monitoring the S
DI Physical Layer
15. Select Equalizer Bypass.
16. Select one of the following settings:
On. Bypass the equalizer when
the instrument is connected to a
signal with a sh
ort length of cable.
This setting minimizes the jitter
contributed by the internal equalizer
and is general
ly used only with
signals containing very low jitter.
Off. Enables the equalizer, which
enables operation with typical cable
lengths and r
educes jitter due to
cable effects. Use this setting for
most signals.
To Set SMPTE 259/2 92 Alarm
Thresholds
17. To reset both the SMPTE 259 (SD)
and SMPTE 292 (HD) alarm thresholds
back to the factory-default v alues, s elect
Reset SMPTE259/292 Defaults and
press SEL.
NOTE. The following thresholds only appear
in the menu when Option PHY is installed:
Eye Amplitude Max/Min, Eye Risetime
Max/Min, Eye F alltime Max/Min, and Eye
Rise-Fall Delta.
18. To rese
t only the SD thresholds or the
HD thresholds back to the factory-default
values, select SMPTE 259 (SD)
Thresh
olds or SMPTE 292 (HD)
Thresholds, depending on which type of
video signal you are monitoring.
19. Select Reset Defaults and press SEL.
NOTE.
The steps and illustrations that
follow show setting custom SD threshold
values. The HD threshold names are the
same a
s the S D thresholds, but the setting
values and ranges may b e different.
Waveform Rasterizers Quick Start User Manual 57
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