Exfo PSO-100 Series Optical Sampling Oscilloscopes Instrukcja Użytkownika Strona 13

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Introducing the PSO-100 Optical Sampling Oscilloscope Series
Optical Sampling Oscilloscope 5
Typical Applications
If the optional external clock input is installed, the internal software
synchronization can be performed on the clock signal instead and thereby
relaxes the requirements on the signal quality. The external clock is useful
in a number of measurement situations where the internal synchronization
may fail, such as:
³ very noisy or distorted signals
³ unconventional modulation formats
³ low duty cycle RZ pulses
³ sub-optimally multiplexed signals.
If the gated clock mode is installed, the PSO-100 can be used for measuring
gated data that come in bursts (for example, circulating loop experiments
and optical packet switching).
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