Chapter 12: The OptiFiber Pro HDR OTDR Module
HDR OTDR Results
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: The measurement exceeds the limit.
: The measurement is within the limit.
To see details for the event, tap the window. See Figure 173 on
page 442.
To see information for another event, tap another icon on the
map.
Overall Loss: The loss of the cabling. This does not include the
OTDR connection and the loss of the last event. If Launch
Compensation is on, the overall loss includes the launch and
tail connectors, but not the launch and tail fibers.
If you did the test at two wavelengths, the tester shows the
highest loss of the two wavelengths.
N/A shows for the Overall Loss if the tester cannot measure the
loss. This can occur when events are too close together or when
there is a large reflective event near the end of the fiber.
Fiber Length: The length of the fiber. The units show in
meters (m) or feet (ft). If Launch Compensation is on, the
length does not include the length of the launch and tail
cords.
PASS/FAIL: The overall result for the fiber.
PASS: All measurements are within the test limits.
FAIL: One or more measurements exceed the limit.
Event Table
The event table shows a list of the events on the fiber. To see the
event table, tap TABLE on the OTDR results screen. Figure 171
shows an example of an event table. Table 17 gives descriptions
of the event types.
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