The Keysight M9046A is an 18-slot PXIe chassis delivering PCIe Gen 3 performance for high-throughput modular instrumentation systems. It combines 24 GB/s system bandwidth with intelligent thermal management and flexible slot architecture to support demanding aerospace, defense, electronic test, and communications applications.
Technical Specifications
Slot Configuration
• 18 total slots: 13 PXIe slots, 3 PXIe hybrid slots, 1 timing slot, 1 dual-link system slot
• Dual-link system slot supports x8 and x16 PCIe connections
Backplane & Connectivity
• PCIe Generation 3
• System bandwidth: up to 24 GB/s (dual-link system slot, 24 PCIe lanes)
• Slot-to-slot bandwidth: up to 8 GB/s per peripheral slot (x8 PCIe link)
• Peripheral slots: x8 PCIe link
• Optional rear trigger access: 8 SMB ports across 3 trigger bus segments
• Multi-chassis power sequencing via Cat 5 cables with RJ-45 connectors
• Remote inhibit and power rail monitoring via DB-9 connector
Power & Thermal
• Usable power: up to 1675W
• Cooling capacity: 85 W/slot standard; up to 100 W/slot (Option 003)
• Three auto-speed rear intake fans with eight exhaust temperature sensors
• Airflow direction: bottom to top across module slots
Reference Clock
• OCXO 10/100 MHz reference clock (±1 ppm)
• Optional 2.4 GHz high-performance reference clock with low phase noise (Option 003)
System Monitoring
• Module exhaust temperatures, voltage rails, and fan speeds
– Key Features
• High-capacity power supply with per-slot monitoring and control
• Increased airflow volume with acoustically optimized fan operation
• Temperature-adaptive fan speed control reduces noise under partial loads
• Compact, rack-mountable form factor
– Typical Applications
Aerospace and defense test systems, electronic component characterization, communications signal validation, and multi-module measurement platforms requiring synchronized operation.
– Compatibility & Integration
Accepts PXIe and hybrid-compatible modules. Supports interconnection of multiple chassis for synchronized power sequencing and distributed measurement systems.
