To tap the input signal

Electrical Input Signals

You can use a microwave pickoff to transfer a small amount of signal energy to the N107X-series module’s Data In connectors while sending the remaining signal energy to the oscilloscope’s channel input. It is best to keep the cables that attach the DUT to the pickoffs as short as possible. Microwave pickoffs are included in the electrical phase-matching kits.

Optical Input Signals

Some N107X-series clock recovery modules, such as the N1078A-SXT, do not include an internal optical splitter. In this case, you will need to connect a user-provided external optical splitter. Connect one splitter output to the N107xA’s optical Data In connector and the other splitter output to the oscilloscope’s optical channel input.