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OCC-CWDM-301-18
3.4.1 Trace Display of OTDR
This window displays the trace after one measurement.
Definition of Trace
:
After one measurement, reflection power diagram will be displayed as distance function.
This diagram is referred to as trace.
Trace of OTDR displays measurement result in a graphic form. The y-axis stands for power, and the x-axis stands
for distance, as shown in Figure 3-4.
Reflection
Attenuation
R
e
la
ti
v
e
p
o
w
e
r
Distance
Figure 3-4. Traces and Coordinates
3.4.2 Information Window of OTDR
Contents of this window: measurement parameters, events list, marker A/B and analysis parameters.
3.4.2.1 Measurement Trace Parameters
Important measurement and analysis parameters always display in the information window as shown in
Figure 3-5.(a), (b):
Figure 3-5.(a) Measurement Trace Parameters
30 s
80 km
1.4666
2 .5us
1550 nm
A vg.T i m e:
Ra nge :
IO R :
P ul s e W i dt h:
W a ve l e ngt h:
8K m /D i v
5. 00dB /D i v
t ra c e1
P a ra- 1
B
A
S a m p.D i s t.:
5.11 m
