Xpon Losses Meter Function - Promax PROLITE-67 Manuel

4.2.7 xPON LOSSES METER Function

The insertion loss is defined as the ratio between the received power respect to
the transmitted total power. Power loss signal is due to the different components that
are in the transmission line of the optical fibre and the attenuation that they produce.
These components are connectors, splitters, couplers, etc...
To access this function:
1.- Press MENU
2.- Press
3.- Press SEL
The screen shows power gain or losses in dB for each wavelenght in a graphical
and numerical way.
The central point «0» at the graph represents the reference level captured. From
this point the power signal grows or decreases with respect to this reference point. For a
signal going to the OLT (Downstream: 1490/1550) the losses grow and a signal going
to the ONT (Upstream: 1310/1610) losses decrease.
Bar graph represents losses/gains of ± 40 dB with respect to the reference value.
Graph shows an arrow when it exceeds this value in an end. But it will show the real
value in numeric format.
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[2].
or [5] until pointing at xPON LOSSES METER.
[4] to get into this function (see figure below).
Figure 11.- xPON LOSSES METER screen.
USER'S MANUAL. PROLITE-67
07-2012