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Keysight Technologies
N7785B
Synchronous Scrambler
Data Sheet
Introduction
The Keysight Technologies N7785B is a high-speed synchronous scrambler. It contains a polarization con-
troller plus microcontroller-based driving circuitry. This unit can operate in various modes:
As a synchronous scrambler, the device switches the SOP of the output signal in a random (pseudo) way.
Switching of the SOP occurs within a few microseconds.
The SOP is stable for a predefined time until it again switches to a new SOP.
An electrical trigger input can be used to synchronize the scrambler with external events.
As an SOP switch the N7785B allows switching the internal waveplates to user definable angles with very
high speed and repeatability.
As a traditional scrambler, the Keysight N7785B varies the output SOP smoothly in a random/pseudo
random way.
The unit does not contain any moving parts, and therefore is robust and withstands even rough environmental
conditions.
All above-mentioned applications of the N7785B are supported by Keysight's PC software package which
comes with this instrument.
Key benefits