Features and Functions 4
Keysight 34970A/34972A User’s Guide 125
Scanning with External Instruments
If your application doesn’t require the built-in measurement capabilities of the 
34970A/34972A, you can order it without the internal DMM. In this configuration, 
you can use the 34970A/34972A for signal routing or control applications. If you 
install a multiplexer plug-in module, you can use the 34970A/34972A for 
scanning with an external instrument. You can connect an external instrument 
(such as a DMM) to the multiplexer COM terminal.
H
L
H
L
Input 
Channels
H
L
H
L
External DMM
Common Terminals 
(COM)