The Keysight / Agilent / HP 3497A Series Data Acquisition/Control Unit Mainframe provides the interfacing, power supplies, and support structure for optional plug-in cards and assemblies. It is also the interfacing means between the 3498A Extender and a controller.

Local control is accomplished by using the 3497A's standard front panel. This front panel has an alphanumeric keyboard for programming the scanner and a display for showing measurement results, status, etc. The front panel does not affect the remote control capabilities of the 3497A, and it also has an audible and programmable alarm (beeper).