•
After a certain period of time, the trace displays on the GUI. The trace in the
Figure below is a trace during measurement, which will be refreshed for every
certain period of time to demonstrate the whole process to users in real time.
But at the end of measurement, the trace will be final, as shown in figure 39.
5.2.3 Trace Measurement - Manual
If the operators have full knowledge of measured optic fiber, they can set accurate
parameters, and achieve optimal measurement results.
•
Set the parameters: Refer to the section; Configuration of parameters.
•
Measure: Press [
Auto measurement.
5.2.4 Trace Measurement — Reasons of Measurement Failures
If measurement failures occur, reasons may be one of the following:
•
Events may be too close to each other.
Shorten the pulse width, and make another try. If failure still occurs, please try
to measure at the other end of the optic fiber.
•
Low SNR.
Try to use wider pulse or increase average time, and make another try.
•
Incorrect parameter configuration.
Check parameter configuration, and make another try.
Page 40
12 Km / Di v 3. 50dB/ Di v t r ace 1
30 s
Ave. Ti m e :
Range :
80 km
I O R
:
1. 4659
Figure 39.- Trace Measurement of PROLITE-50/51/52.
] to start measurement. The process is the same with
USER'S MANUAL. PROLITE-50/51/52
Par a - 1
Pul sewi dt h :
2 . 5us
W avel engt h :
1550 nm
A
B
11-2015