Cursors - Viavi 8100 V2 Series User Manual

Distance
Loss
Reflect.
Slope
(Expert OTDR only)
Section
(Expert OTDR only)
T. Loss

Cursors

The cursors A and B are represented by vertical lines of different colors:
• in a solid line if the cursor is selected.
• in a dotted line if the cursor is not selected.
Positioning the cursor
1 Press the key
2 Touch the screen on the required location on trace where the active cursor must
be set.
You can also use the direction keys
the trace
Above the trace is shown the 2-points loss measurement between the two cursors,
together with the distance between the two cursors.
The cursors data are displayed exclusively if the Cursor menu key is active.
If another key is active, the display shows help tooltips, different according
to the selected function.
When a selected cursor touches the right or left-hand edge of the screen, the trace starts
to scroll horizontally to maintain display of this cursor.
If an unselected cursor has been moved off-screen by a zoom, it can be brought back
on to the screen by selecting it and then pressing one of the direction keys
will then appear on whichever edge of the screen is closest to its position.
The distance of the event from the beginning of the fiber, in
meters (or miles)
The attenuation due to the event, in dB
The reflectance of the event, in dB
The slope before the event, in dB/km (or dB/kft) if it can be
measured
The length of the section = the distance between the marker of
the event and the previous marker.
The total attenuation of the fiber (total loss), in dB
to active the cursor.
User Manual
Chapter 3 Reflectometry measurements
and to move the selected cursor along
78000010220 Rev. 024
Results display
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