Exact-model reference photo of a legacy Agilent 81633A optical power sensor module. Actual used unit, installed options, and supplied accessories may vary.
Official module comparison: the target 81634B is at right and the different 81630B is at left. This reference is not a two-module package; actual connector configuration and supplied unit must be confirmed.
Official Keysight N7752A manufacturer reference image. Exact N7752A label is clearly visible. Two attenuator channels and two separate optical power-meter inputs are shown.
Official Keysight N7751A manufacturer reference image. Exact N7751A label is clearly visible. One attenuator channel and two separate optical power-meter inputs are shown.
