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USER'S MANUAL. PROLITE-75
To use this function, the meter has to be connected directly to a single ONT
terminal (see fig. 10.-). If you connect the meter to an intermediate point in the network,
it can take part more than one ONT and then the analysis would not be correct.
The measures shown on the screen are:
PK:
AVG:

DUTY CYCLE:

EXTINCTION RATIO: Ratio of two optical power levels (in dB) of a digital signal
To change the time scale, press the cursor keys
from 50 microseconds to 100 ms.
At the bottom of the screen, softkeys provide access to the next option:
BACK [F1]:
04-2009
Figure 9.- ONT Analyser.
Figure 10.- Direct Connection to an ONT.
Peak power of the Upstream signal.
Average power of the Upstream signal.
Cycle of work defined as the percentage ratio between
the pulse duration and period.
generated by an optical source, where P1 is the optical
power level number 1 when the light is "on" and P2 is the
optical power level number 2 when the light is "off."
Returns to the GPON METER function (see section
4.2.2).
[11]. Available values are
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