4-17
IM AQ7280-01EN
Optical
Pulse Analysis
1
2
3
4
5
6
7
8
Index
4.2 Analyzing Events
Event Screen
Screen Display Items: Trace+List
1.
From the top menu, select
OTDR
.
2.
Press the
Event Analysis
soft key to display the following screen.
Set the screen display
item to Trace+List.
Edit or fix events.
See page 4-18.
2 Point Markers
For details, see page 4-2.
Selects the rotary knob
function
(Cursor, Event)
Measurement
reference point: S
Event number
Event E detected as the end of fiber
Waveform display
List display
Event Number
A number is displayed on the waveform next to the event. The numbers are in ascending order
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 page 2-12.
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 page 4-3.
Splice Loss
The splice loss for each event is displayed. When the pass/fail judgment is set to ON, splice losses
that exceed the fault event threshold are displayed in red characters.
Return Loss
The return loss for each event is displayed. When the pass/fail judgment is set to ON, return losses
that exceed the fault event threshold are displayed in red characters.
Cumulate 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.