Agilent/Keysight M9101A

The Keysight M9101A is a 64-channel, 2-wire multiplexer module for PXI systems engineered to route multiple analog signals to single or multiple measurement points in automated test environments and data acquisition systems. Built around high-density reed relays, the module delivers 500 µsec switch speed with break-before-make or simultaneous switch closure capability, supporting voltage levels up to 100 Vrms and currents up to 1.0 A per channel. An isolation switch minimizes capacitive loading and leakage currents in large multiplexer configurations by connecting all closed channels to module common.

– Technical Specifications

• Module Type: Multiplexer (64-channel, 2-wire)
• Switch Type: High-density reed relays
• Switch Speed: 500 µsec
• Maximum Voltage: 100 Vrms
• Switch Current: 0.5 A per channel
• Carry Current: 1.0 A per channel
• Maximum Power Dissipation: 10 W per channel
• Relay Life: Path resistance < 1.5 Ω
• Operation Modes: Break-before-make or simultaneous switch closures
• Connector: High-density 200-pin LFH (Low Force Helix) or standard cable connections

– Key Features

• Isolation switch minimizes capacitive loading in large multiplexer deployments
• Reed relay technology enables fast switching transitions
• Supports both break-before-make and simultaneous closure logic
• High-density 200-pin connector configuration reduces footprint requirements

– Typical Applications

• Automated test environments (ATE)
• Data acquisition systems
• Multi-signal routing to measurement instruments
• High-speed analog signal switching and distribution

– Compatibility & Integration

The M9101A complies with PXI standards and mounts in PXI chassis via J1 connector, supporting cPCI (J1), PXI-1 (J1 only), and PXIe hybrid slot configurations. The module integrates with Keysight PXIe chassis including the M9018A and supports programming through Visual Studio, C, C++, C#, Visual Basic, MATLAB, and LabVIEW environments with Keysight Connection Expert and soft front panel configuration tools.