Keysight N774 C Series - Optical Head Analog Output

46 Keysight N774-C & 8162-C Series User’s Guide
2 Getting Started
Do not apply an external voltage to this connector.
Optical Head Analog Output
The analog output is the BNC connector on the back of the optical head.
It outputs a voltage directly proportional to the strength of the optical
signal at the optical input in the current range. The analog voltage is
always in the range between 0 and 2 V. For linear output, 1 V corresponds
to the nominal value of the current range (like 100 µW in the -10 dBm
range) and 0 V corresponds to zero signal. Do not apply an external
voltage to this connector.