Keysight 34921A User Manual

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Keysight 34921A Specifications

General

Model	34921A
Category	Control Unit
Manufacturer	Keysight Technologies
Module Function	Multiplexer
Maximum Voltage	300 V
Maximum Current	1 A
Relay Type	Electromechanical
Connector Type	Screw terminal
Number of Slots	1
Storage Temperature	-40 to 70 °C
Compatibility	34970A, 34972A
Measurement Types	Voltage, Current, Resistance
Interface	GPIB, LAN
Power Supply	100-240 VAC
Operating Temperature	0 to 55 °C

Summary

34921A 40-Channel Armature Multiplexer

34921A Simplified Schematic

Diagram illustrating the two independent 20-channel 2-wire multiplexer configurations.

34921A D-Sub Connector Pinouts

Pinout details for the 50-pin D-Sub male connector on Bank 1 and Bank 2.

34921T Terminal Block Details

Description and diagram of the terminal block for thermocouple measurements.

34922A 70-Channel Armature Multiplexer

34922A Simplified Schematic

Diagram showing the two independent 35-channel 2-wire multiplexer configurations.

34922A D-Sub Connector Pinouts

Pinout details for the 78-pin D-Sub male connector on Bank 1 and Bank 2.

34922T Terminal Block Details

Details on terminal blocks for solder or screw connections for the 34922A module.

34923A 40/80-Channel Reed Multiplexer

34923A Configuration Modes

Details on configuring the module for 2-wire, 4-wire, or 1-wire operation.

34923A Simplified Schematic (Two/Four-Wire)

Diagram for 2-wire or 4-wire mode configurations.

34923A D-Sub Connectors (Two/Four-Wire)

Pinout for 2-wire or 4-wire mode on Bank 1 and Bank 2.

34923T Terminal Blocks (Two/Four-Wire)

Details on terminal blocks for 2-wire or 4-wire configurations.

34924A 70-Channel Reed Multiplexer

34924A Simplified Schematic

Diagram illustrating the two independent 35-channel 2-wire multiplexer configurations.

34924A D-Sub Connector Pinouts

Pinout details for the 78-pin D-Sub male connector on Bank 1.

34924T Terminal Block Details

Details on terminal blocks for solder or screw connections for the 34924A module.

34925A 40/80-Channel FET Multiplexer

34925A Configuration Modes

Details on configuring the module for 2-wire, 4-wire, or 1-wire operation.

34925A Simplified Schematic (Two/Four-Wire)

Diagram for 2-wire or 4-wire mode configurations.

34925A D-Sub Connectors (Two/Four-Wire)

Pinout for 2-wire or 4-wire mode on Bank 1.

34925T Terminal Blocks (Two/Four-Wire)

Details on terminal blocks for 2-wire or 4-wire configurations.