Display Information
Eye Display
The Eye Display is accessible from the EYE button on the front panel of your
instrument if it has Option EYE or Option PHY. This display presents an eye
pattern diagram of the SDI input, which lets you verify electrical characteristics of
the SDI transport layer. Measure analog characteristics of the SDI input on the
eye pattern
using the graticule or voltage and time cursors.
Configure your instrument to show multiple Eye displays, each of which is
controlle
d by one of two jitter engines: The Jitter1 engine controls Eye displays in
the top two tiles and the J itter2 engine controls Eye displays in the bottom two
tiles. The two jitter engines allow you to set d ifferent filter bandwidths in the
upper and lower tiles allowing you to monitor both timing and alignment jitter
at the same time.
A jitter thermometer in the Eye display graphically relates the jitter measurement
to alarm limits, and readouts display jitter magnitude. W hen displaying the Eye
waveform in a single, full-screen tile, the measurement results and a histogram
displa
y are included with the Eye waveform. (See Figure 31.)
NOTE. See Monitoring the SDI Physical Layer for information about taking Eye
measurements. (See page 101.)
Figure 30: Eye display in 4-tile mode (no histogram)
54 WFM8200 and WFM8300 Waveform Monitors
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