The Keysight M9131A is a 64-channel PXI switch module built on single-pole, double-throw (SPDT) reed relay architecture for signal routing and control in demanding test environments. It handles switching and carry currents up to 1 A at voltages to 100 Vrms with 3 W maximum power per channel. The module operates from DC to 26.5 GHz, making it suitable for both low-frequency control tasks and RF signal switching applications.
Technical Specifications
• Channel Count: 64 independent SPDT channels (Form C)
• Relay Type: High-speed, long-life reed relays
• Switch/Carry Current: 1 A maximum
• Maximum Power: 3 W per channel
• Voltage Rating: Up to 100 Vrms
• Frequency Range: DC to 26.5 GHz
• Form Factor: Standard PXI module
– Key Features
• High-density architecture with 64 independent switching paths
• Reed relay design provides durable, low-contact-resistance connections
• Handles mixed-signal applications from DC control circuits through microwave frequencies
• External connector options include durable connector blocks or cable connections
• PXI and PXIe chassis compatible via standard PXI interface
– Typical Applications
• Power cycling to devices under test
• Status and indicator light control
• External relay and solenoid actuation
• Automated signal routing in multiport test systems
• RF and microwave signal selection
• Radar and wireless communications test environments
– Compatibility & Integration
The M9131A integrates with standard test automation frameworks through Keysight Connection Expert and soft front panels. Programmatic control is available in Visual Studio, C/C++, C#, Visual Basic, MATLAB, and LabVIEW environments via supplied software drivers.
