The Keysight M9128A is a PXI RF matrix switch module that provides high-density signal routing in a single-slot form factor. Its 8×12 bidirectional switching matrix handles general-purpose RF signal distribution up to 300 MHz, connecting multiple test points to various instruments simultaneously. The module integrates SMB male connectors, row disconnect switches for enhanced RF performance, and a common ground architecture. Switching capability spans 30V, 0.5A, and 10W maximum ratings at 50 Ω impedance.
Technical Specifications
• Switching Matrix: 8×12 bidirectional configuration
• Maximum Frequency: 300 MHz
• Impedance: 50 Ω
• Voltage Rating: 30V
• Current Rating: 0.5A
• Power Handling: 10W
• Connectors: SMB male
• Module Footprint: Single PXI slot
• Weight: Approximately 1 lb
– Key Features
• High-density matrix architecture within a single PXI module
• Bidirectional switching capability
• Row disconnect switches optimize RF signal integrity
• Common ground configuration
• 50 Ω characteristic impedance throughout matrix paths
– Typical Applications
• Multi-point signal routing and distribution
• Automated test environments (ATE) requiring analog signal switching
• Data acquisition systems with multiplexed signal paths
• RF test setups demanding flexible interconnect solutions
– Compatibility & Integration
The M9128A operates within any standard PXI chassis. Software control is available through Visual Studio, C, C++, C#, Visual Basic, MATLAB, and LabVIEW via dedicated drivers. Configuration and installation leverage Keysight Connection Expert and soft front panels for streamlined integration.
