7-2
IM AQ1200-01EN
7.1 Displaying the Event Screen
Section Analysis
1.
Using the
rotary knob
and
ENTER
, select
OTDR
.
2.
Press the
Event Analysis Setup
soft key and then the
2 Point Markers
soft key to display the
following screen. The distance between marker
A
and
B
is measured.
A
Marker
Set the start point to the cursor position.
B
Marker
Set the end point to the cursor position.
Analysis start position
Set marker .
Analysis end position
Set marker .
Section analysis between and
The section distance and section
loss are displayed.
A
B
A
B
Explanation
Event Screen
Event Number
A number is displayed on the waveform next to the event. The numbers are ordered from the left
of the display. If there is an asterisk to the left of an event’s number, the event is a fault event. For
details about fault events, see section 3.6.
Distance
The distance from the measurement reference point to each event is displayed. If you move the
distance reference, which is the measurement reference point, the distance from the distance
reference to each event is displayed. For details about the distance reference, see section 6.3.
Splice Loss
The value for each event is displayed. When the fault event display is turned on, splice losses that
exceed the splice loss fault event threshold are displayed in red characters.
Return Loss
The value for each event is displayed. When the fault event display is turned on, return losses that
exceed the return loss fault event threshold are displayed in red characters.
Cumul-Loss
The loss from the measurement reference point is displayed. If the distance reference is specified,
the distance reference is the measurement reference point. If the distance reference is not
specified, the measurement reference point (S) is the measurement reference.
Event Types
The type of each event is displayed using the following symbols.
: Positive splice loss
: Negative splice loss
: Reflection
