User`s guide

Using the Oscilloscope 2
Agilent Infiniium 90000 X-Series Oscilloscopes User’s Guide 27
You can also use the Infiniium oscilloscope application’s Calibration
Output dialog box (Utilities > Calibration Output) to select other output signals,
just like you can for the Aux Out output.
Probe Compensation Terminal
This terminal has a square wave signal that is used to adjust compensated
passive probes. Be sure to use an N5449A high- impedance adapter.
You can also output a DC level on this terminal using the Infiniium
oscilloscope application's Calibration Output dialog box.
USB Host Ports
There are three USB host ports on the right side of the front panel.