EXFO OTDR 2 - Manual (Page 107)

Analyzing Traces and Events
OTDR 99
Events Tab
Events Tab
You can view information about all detected events on a trace and fiber
sections by scrolling through the events table. When the graph is visible,
when you select an event in the events table, marker A appears on the
trace over the selected event. When the selected event is a fiber section,
this fiber section is delimited by two markers (A and B). For more
information on markers, see Using Markers on page 83.
These markers pinpoint an event or a fiber section, depending on what is
selected in the events table. You can move markers directly by selecting an
element in the events table or on the graph.
The events table lists all the events detected on the fiber. An event can be
defined as the point at which change in the transmission properties of light
can be measured. Events can consist of losses due to transmission, splices,
connectors or breaks. If the event is not within the established thresholds,
its status will be set to “fail”.
A red triangle appears next to the event number to indicate that a comment
has been inserted manually for a specific event.
If you tap and hold the row corresponding to a specific event or fiber
section for a few seconds, the application will display a tooltip identifying
the item (for example, Non-reflective fault). In the case of a merged event,
you will also see details about the “sub-events”.
The tooltip displays any comment that you have inserted manually.
Tooltip identifying
the selected item