HP 54710A User's Reference Manual page 97

Channel Menu
A plug-in performs analog signal conditioning for the oscilloscope. An
HP 54700-series plug-in scales the input signal, sets the bandwidth of
the system, and allows you to choose the input coupling that
determines the input impedance. The output of the plug-in is an
analog signal that is applied to the ADCs that are on an acquisition
board inside the mainframe. The plug-in also provides a trigger sync
signal to the time base/trigger board inside the mainframe.
This chapter treats the channel menus generically. Specific details
about each menu, operating ranges, and specifications depend on
which plug-in you are using.
Figure 6-1 is the channel menu map for the HP 54712A Amplifier
plug-in. The other plug-ins may have specific features that are not
shown on this menu map. The purpose of this menu map is to show
you the softkeys that are talked about in this chapter. For specific
details about another plug-in, see the User's Reference that is
supplied with that plug-in.
6–2