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DSP-FTA420/30/40
Users Manual
Autotest Results for Smart Remote Mode
This section describes the DSP-FTA4XX fiber tests and the results produced
when you run an Autotest using Smart Remote Mode. The descriptions of loss
and length tests also apply to Single Tests using Smart Remote Mode.
To see the complete results for a test, press ! View Result on the first
Autotest display, use D to highlight the desired test, then press E.
Pass/Fail and Headroom Results for Smart Remote
Mode
The pass/fail result shown on the first Autotest display tells you if the fiber link
tested within the limits of the selected test standard.
Headroom is the smallest margin found between the measured power loss and
the loss limit. Headroom indicates how much more loss you could have in the
link without exceeding the limits of the selected test standard. If you tested two
fibers, you can determine which fiber produced the smallest margin by viewing
the loss results of the output and input fibers.
Loss for Smart Remote Mode
Loss is the optical power lost through the fiber, adapters, splices, and other
components in a fiber link. The test tool determines power loss by calculating
the difference between the received power and the reference power level. The
loss is compared to the limit allowed by the selected test standard to produce a
pass or fail result.
Table 2 describes the loss results for Smart Remote Mode.
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