The Keysight 34959A Breadboard Module is a plug-in accessory for the 34980A Multifunction Switch/Measure Unit that provides a dedicated platform for integrating custom circuitry and prototyping within the mainframe. The module delivers access to onboard power supplies, digital I/O ports, relay drive lines, and internal connections to the 34980A’s analog buses and DMM, all controlled via SCPI commands for automated test system integration.
Technical Specifications
• Custom Circuit Space: 5.4 × 7.5 × 0.9 inches (137 × 190 × 23 mm)
• Power Supplies:
– +12V supply: 6W maximum, 10% regulation (no load to full load)
– +5V supply: 1W maximum, 5% regulation (no load to full load)
• Digital I/O Ports: 16 channels, configurable as input or output (16 bits total)
• Relay Drive Lines: 32 lines, each capable of sinking 100 mA
• Maximum Module Power Dissipation: 6W
• Mounting: Fifteen countersunk holes in base for component installation
– Key Features
• Internal ribbon cable connectors link directly to 34980A mainframe resources
• Two external D-sub connector ports (DB50 or DB78 options) for field wiring
• Faceplate cutouts accommodate common connector types
• Configurable GPIO for discrete signal control and monitoring
• Independent relay drive circuitry for external relay actuation
• SCPI command interface for full programmability in test sequences
– Interfaces
• SCPI read and write command control
• Internal connections to 34980A analog buses and integrated DMM
• External D-sub connectors for remote signal distribution
• Ribbon cable connectors for mainframe integration
– Compatibility & Integration
Exclusively compatible with the Keysight 34980A Multifunction Switch/Measure Unit. Mounts directly within the mainframe without external enclosures or adapters, enabling transparent integration of user-designed test circuits into larger automated measurement systems.
