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System Operation
computer to select these signals via the USB interface. (See the HWCONFIG
command in Section 5.5)
These signals may be left unconnected if they are not selected.
4.6.7
Analog Input / Analog Input (Return)
The Analog Input and Analog Input (Return) signals are a differential analog
input loosely coupled to the unit's Laser Diode Analog Ground. This input
allows the user to bring in a voltage signal (0 to 10 V) for monitoring by the
instrument; the signal is sampled at 100Hz. LIV characterization is one of the
typical applications where this input can be used. For this application, the
analog input can be from an optical power meter representing a laser diode's
optical power.
4.6.8
Chassis Ground
For convenience, the Model 6100 has a chassis ground connection on the I/O
Signals connector.
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