The Keysight 34959A Breadboard Module is a customizable accessory for the 34980A Multifunction Switch/Measure Unit that enables users to design and integrate proprietary circuitry within the mainframe slot. This approach eliminates the need for external custom electronics by providing on-module power supplies, digital I/O, and relay drive resources directly accessible to user-designed circuits.
– Technical Specifications
• Dimensions: 137 mm × 190 mm × 23 mm (5.4″ × 7.5″ × 0.9″)
• Usable PCB Area: 137 mm × 190 mm (5.4″ × 7.5″)
• Power Supplies: +12 V, +5 V available for custom circuitry
• Digital I/O: 16 General Purpose Input/Output bit lines with control lines
• Relay Drive Lines: 32 and 28 relay drive line configurations
• Internal Connectors: 26-pin and 40-pin ribbon cable interfaces
• External Connectors: DB50 or DB78 field-wiring ports
• Mounting Points: Fifteen countersunk holes on sheet metal base for flexible component placement
– Key Features
• Access to mainframe’s internal DMM and four Analog Buses via hard-soldered connections to PCB grid holes
• Standard SCPI programmability for remote control and data acquisition
• Top cover provides mechanical protection and electromagnetic shielding
• On-module circuitry can be isolated from or connected to analog buses through configuration
• Supports external device control including microwave switches, attenuators, solenoids, and power relays
• Digital input monitoring of limit-switch and digital-bus status
– Typical Applications
• Custom test and measurement prototyping
• Integration of specialized control logic into automated test systems
• Extension of standard 34980A capabilities for application-specific requirements
• Industrial process monitoring and control integration
– Compatibility & Integration
Designed exclusively for integration into the Keysight 34980A Multifunction Switch/Measure Unit. Analog Bus soldering requires careful attention to avoid shorts between wires and connection holes, which could damage the module, mainframe, or other installed equipment.
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