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Recovered Clock
Operation
Front-Panel Features
Multimode and single-mode connections
HP 83492A modules use multimode fiber. Connecting the output to the Optical Input con-
nector on HP 83481/2/5 single-mode modules results in large reflections and insertion
loss.
HP 83493A modules use 9/125 µm single-mode fiber. Connecting multimode fiber to the
Optical Input connector results in large reflections and insertion loss.
The recovered clock signal is routed directly to the HP 83480A mainframe
through the module's rear panel. This output has a lower jitter modulation
bandwidth than the front-panel CLOCK Auxiliary Output. Because of the reduced
jitter modulation bandwidth on the mainframe trigger signal, a more complete
view of the jitter on the waveform data is obtained.
2-6
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