Agilent HP Keysight M9505A AXIe 5-Slot Chassis

The Keysight M9505A is a 5-slot AXIe chasscan host modular test instruments in automated test systems. It combines AXIe 1.0 compliance with a compact 4U form factor, delivering 200 W cooling capacity per slot and front-accessible maintenance without module removal. The integrated Embedded System Module (ESM) manages chassis functions and provides external clock, trigger, and inter-chassis synchronization connectivity, while dedicated PCIe and Gigabit LAN interfaces enable high-speed instrument communication and external system control.

Technical Specifications

• Form Factor: AXIe, 5 instrument slots


• Cooling: 200 W per slot; right-to-left airflow; no filters


• Power Supply: 100–240 VAC, 50–60 Hz input; 400 W total DC output; 8 A maximum module current


• Power Regulation: 2% load regulation; 1% pk-pk maximum ripple and noise (20 MHz bandwidth)


• System Controller Interface: Gen 2 PCIe x8, up to 4 GB/s


• Module Slot Interface: Gen 2 PCIe x4 per slot, up to 2 GB/s per slot


• Local Bus: Maximum 62 differential pairs for module-to-module signaling


• LAN: Gigabit connection to each module slot


• System Clock (CLK100): 100 MHz ± 20 ppm, 45/55% duty cycle; 100 ps maximum slot-to-slot skew


• External Clock Input: 10 MHz ± 100 ppm, ±5 V AC coupled, 250 mV minimum swing (SMA)


• External Clock Output: 10 MHz, 3.3 V CMOS, 50 ohm load (SMA)

Key Features

• Embedded System Module (ESM) does not consume an instrument slot


• Front-removable power supply and fan tray for in-rack maintenance


• Compliant with AXIe 1.0 and AdvancedTCA (ATCA) PICMG 3.0 R2.0 specifications


• Electrically compatible with standard ATCA modules


• Differential star trigger (STRIG) for precision synchronization

Typical Applications

• Aerospace and defense test systems


• Semiconductor characterization and production test


• Communications equipment validation


• General electronics test automation

Compatibility & Integration The M9505A integrates into external control environments via Gen 2 PCIe x8 backbone connectivity and supports synchronized multi-chassis configurations through dedicated inter-chassis connectors on the ESM.