The Keysight M9103A is a PXI high-density multiplexer module that routes multiple signals to single measurement devices in automated test environments and data acquisition systems. Built around 99 channels of 2-wire armature relay switching, it handles up to 100 Vrms and 1 A per channel with 60 W maximum power dissipation. The module switches in 500 µs or faster and supports both break-before-make and simultaneous closure modes. Channel resistance typically remains below 1.5 Ω, with optional measurement-grade operation up to 50 Ω under light loads (< 10 mA).
Technical Specifications
• Channels: 99
• Switch Type: 2-wire armature relay
• Maximum Voltage: 100 Vrms
• Maximum Current: 1 A per channel
• Maximum Power Dissipation: 60 W per channel
• Switch Speed (Typical): 500 µs or faster
• Channel Resistance: Typically < 1.5 Ω; up to 50 Ω for measurement applications with < 10 mA load current
• Relay Life: Path resistance remains < 1.5 Ω throughout operating life
• Switching Modes: Break-before-make or simultaneous switch closures
• Isolation: Isolation switch connects closed channels to module common
– Key Features
• High-density 200-pin low-force helix (LFH) connector with cable connection options
• Optional connector blocks for field installations
• Durable armature relay construction designed for long service life
• 4-wire Ohms measurement capability for accurate resistance characterization
– Typical Applications
• Signal routing in production test systems
• Multi-channel data acquisition
• Automated test environments requiring high-channel-count switching
• Low-voltage/low-current signal matrix expansion
– Compatibility & Integration
The M9103A integrates into PXI chassis via J1 connector (cPCI, PXI-1, or PXIe hybrid slots). Compatible chassis include the M9010A, M9018B, and M9019A. Software support spans Visual Studio, C, C++, C#, Visual Basic, MATLAB, and LabVIEW via Keysight drivers. Integration platforms include Keysight Connection Expert, Soft Front Panels, and Keysight Command Expert.
