Promax PROLITE-75 Mode D'emploi page 57

USER'S MANUAL. PROLITE-75
At the bottom of the screen, softkeys provide access to the next options:
LOSSES [F1]:
ONT [F2]:
REFERENCE [F3]:
THRESHOLD [F4]:
LOGGER [F5]:
4.2.2.1 LOSSES Function
The LOSSES function calculates the insertion loss of each wavelength with
respect to some reference values acquired by the user.
The Insertion Loss of a line is the ratio of the power received at the end of the line
to the power transmitted into the line. The loss of signal power is due to the different
elements that are in the optical fibre system, such as connectors, splices and couplers.
To access the LOSSES module:
1.- From the GPON METER function press the softkey LOSSES [F1].
04-2009
Pressing this softkey you can measure the insertion
losses (see section 4.2.2.1).
Pressing this softkey you will get into the function to
measure Upstream signal over time (see section
4.2.2.2).
This function allows you to enter the reference values
for LOSSES measurement (see section 4.2.2.3).
Using this function you can define and save some
threshold values in groups. Later they can be used for a
measurement (see section 4.2.2.4).
Pressing this key you can save measures taken at the
time (see section 4.2.2.5).
Figure 8.- LOSSES screen.
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