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
Terminal Block
• 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.
