Specifications

1
Agilent 34980A Multifunction Switch/Measure Unit
Mainframe User’s Guide
Agilent Technologies
1
Introduction to the 34980A
This chapter provides an overview of a computer- based
data acquisition and measurement control system using the
Agilent 34980A Multifunction Switch/Measure Unit and
typical plug- in modules.
Data Acquisition Overview 2
Measurement Software 3
Data Acquisition Circuitry 5
Plug-In Modules 6
System Cabling 6
Transducers and Sensors 7
Alarm Limits 7
Signal Routing and Switching 8
Switching Topologies 8
Multiplexer Switching 8
Matrix Switching 9
General Purpose Switching 9
RF and Microwave Switching 10
Measurement Input 11
The Internal DMM 11
Signal Conditioning, Ranging, and Amplification 11
Analog-to-Digital Conversion (ADC) 12
Main System Processor 12
Scanning 13
Scanning With External Instruments 14
The Digital Modules 16
Digital Input 16
Totalizer 17
Control Output 18
The Digital Modules 18
Digital Output 18
Voltage (DAC) Output 19
The Actuator / General-Purpose Switches 20
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