The Keysight M9102A is a 128-channel PXI multiplexer module designed to route multiple signals to a single measurement instrument in automated test environments and data acquisition systems. Built on high-speed reed relay technology, the module delivers 500 µs switch speed and supports both break-before-make and simultaneous switching modes. Its high-density architecture fits within a single 3U slot, making it ideal for space-constrained test racks handling complex signal routing requirements.
Technical Specifications
Channel Architecture
• 128-channel, 1-wire switch multiplexer
• Reed relay switching with high-speed, long-life relays
• Break-before-make or simultaneous switch closures
• Isolation switch connects closed channels to module common
• Common ground reference
Electrical Performance
• Maximum voltage: 100 Vrms
• Switch current (maximum): 0.5 A
• Carry current (maximum): 1.0 A
• Maximum power: 10 W
• Channel resistance: Typically < 1.5 Ω (up to 50 Ω with load currents < 10 mA after extended inactivity)
• Switch speed: 500 µs
Hardware Interface
• High-density 200-pin low force helix (LFH) connector
• Module format: 1-slot 3U
• PXI chassis compatibility: cPCI (J1), PXI-1 (J1 only), PXIe hybrid slot
– Key Features
The M9102A employs high-speed reed relays to deliver fast switching without sacrificing signal integrity. Channel resistance remains below 1.5 Ω under normal operating conditions, ensuring minimal signal degradation across the signal path. The isolation switch architecture prevents cross-channel interference by connecting closed channels directly to module common.
Break-before-make switching prevents momentary short circuits during state transitions, critical for protecting sensitive measurement instruments and preventing data corruption in automated test sequences.
– Typical Applications
Automated test environments, data acquisition systems, aerospace and defense testing, automotive validation, electronic manufacturing test, medical device characterization, and semiconductor device validation.
– Compatibility & Integration
The M9102A integrates with standard PXI frameworks and supports programming through Visual Studio, C, C++, C#, Visual Basic, MATLAB, and LabVIEW environments. Configuration via Keysight Connection Expert and soft front panels streamlines system setup, while Keysight IO Libraries Suite provides driver support across multiple platforms.
