Black Box Fiber Meter Manual page 55

FIBER METER
Figure 5-11. Autotest RX Loss screen.
3. From either the TX Loss or RX Loss screen, press
the F2 button to display the Autotest Margin
Screen (see Figure 5-12). This screen shows the
amount of headroom between the loss budget and
the measured loss.
Figure 5-12. Autotest Margin screen.
NOTE
All failing test results are displayed in reverse video.
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