3 System Overview
82 Keysight 34970A/34972A User’s Guide
Model number Module name Common uses
Measurement input
34901A
20-Channel Mux with T/C
Compensation
Scanning and direct measurement of
temperature, voltage, resistance,
frequency, and current (34901A only) using
the internal DMM.
34902A
16-Channel Reed Mux with T/C
Compensation
34908A
40-Channel Single-Ended Mux with
T/C Compensation
Scanning and direct measurement of
temperature, voltage, and resistance using
the internal DMM.
34907A Multifunction Module Digital Input, Event Counting.
Signal routing
34901A
20-Channel Mux with T/C
Compensation
Multiplexing of signals to or from external
instruments.
34902A
16-Channel Reed Mux with T/C
Compensation
34908A
40_Channel Single-Ended Mux with
T/C Compensation
34904A 4x8 Matrix Switch 32 Crossppoint Matrix switching.
34905A Dual 4-Channel RF Mux (50Ω)
50Ω high-frequency applications
(<2 GHz).
34906A Dual 4-Channel RF Mux (75Ω)
75Ω high-frequency applications
(<2 GHz).
Control output
34903A 20-Channel Actuator
General-purpose switching and control
using Form C (SPDT) switches.
34907A Multifunction Module Digital Output, Voltage (DAC) Outputs.