Agilent/Keysight 34931T

The Keysight 34931T is a detachable terminal block accessory engineered for the Keysight 34980A Multifunction Switch/Measure Unit. It interfaces with the 34931A dual 4×8 armature matrix module, providing screw-type connections for discrete external wiring. This accessory enables flexible signal routing and measurement integration within automated test systems.

Technical Specifications

• Detachable design with screw-type connections


• Supports 20 AWG wire for installations with fewer than 100 connections


• Supports 24 AWG wire for installations exceeding 100 connections


• Field-labeled with model number, module designation, and slot identification space 34931A Matrix Module


• Dual 4×8 armature matrix configuration


• 64 2-wire crosspoints total (32 per matrix)


• Latching armature relay architecture


• Switching rating: 300 V, 1 A; carry current to 2 A


• 50-pin D-sub connector interface to 34980A mainframe


• Matrix 2 connects to internal DMM for voltage and resistance measurements (channels 921, 922) 34980A Mainframe Integration


• Eight module slots accommodate mixed configurations


• Supports up to 4096 matrix crosspoints per mainframe


• Multiple 34931A modules link via analog buses to create larger matrices


• Scan rates to 1000 channels/second


• LAN, USB, and GPIB connectivity; LXI Class C compliant


• Optional DMM, counter/totalizer, digital I/O, and analog output functions

Key Features

• Scalable matrix architecture for complex signal routing


• Discrete wiring interface simplifies external circuit integration


• Latching relays minimize power consumption in static configurations


• Native DMM connectivity enables inline voltage and resistance verification


• High scan rate supports time-sensitive measurement sequences

Typical Applications

• Automated multi-point electrical characterization


• Signal routing and switching in production test environments


• Matrix-based relay control for component validation


• Integrated measurement and switching workflows requiring synchronized data acquisition

Compatibility & Integration Designed exclusively for the Keysight 34980A mainframe with 34931A matrix modules. Compatible with all 21 available plug-in module types within the 34980A ecosystem.