6-18
IM AQ1200-01EN
6.9 Analyzing Sections
Follow the procedure below to measure the return loss and the total loss for the specified section.
Procedure
Section Analysis Screen
1.
Using the
rotary knob
and
ENTER
, select
OTDR
.
2.
Press the
Advanced Analysis
soft key, and then the
Section Analysis
soft key to display the
following screen.
When the suffix code is -HE, press the
Analysis
soft key, the
Advanced Analysis
soft key and then
Section Analysis
soft key.
Analysis start position
Set marker S.
Analysis end position
Set marker E.
Set the start point.
Set the start point marker to the cursor
position.
Set the end point.
Set the end point marker to the cursor
position.
Specify from markers.
When the and markers or the n and
E markers are already present, change
these markers to the start point and end
point markers.
1
2
Press to configure more settings.
See “Adjusting the Reference Level” below.
Set the approximation method
(see section 3.4).
Section S–E analysis
results
Marker position
Adjusting the Reference Level
3.
Press the
More
soft key to display the following screen.
Set the reference level adjustment.
Set marker to the cursor position.
Clear the settings.
Press this to delete the start point,
end point, and reference level
adjustment markers.
B
B
B
Marker
This is the reference point for the return loss measurement. The measured value
between S and E is the splice loss, but the measured value between and E is the
return loss. In the example shown here, the return loss from the event detection point
onwards is being measured.
B
Measured value between and E
