The Keysight/Agilent/HP 0950-2283 is a high-power VXI mainframe power supply engineered for the E1401B C-size, 13-slot VXI mainframe. It delivers ample dynamic and peak currents for power-intensive, high-density instrumentation systems. The unit prioritizes field serviceability with a mean time to repair of 5 minutes for power supply or fan modules, variable-speed fan cooling with selectable high-speed mode, and tool-free access to three rear-panel air filters. Pressurized Air Channel cooling technology maintains thermal stability across ambient conditions while uniform airflow ensures reliable long-term operation.
## Technical Specifications
• **Power Output:** 900 W @ 25°C ambient, 800 W @ 40°C ambient, 650 W @ 55°C ambient
• **Input Voltage:** 100 Vac to 240 Vac; 100 Vdc to 370 Vdc; 100–120 Vac ±10% (400 Hz nominal)
• **Input Frequency:** 50 Hz to 400 Hz; 400 Hz ±10% (400 Hz nominal)
• **Inrush Current:** 40 A maximum
• **Standby Output (+5VSTDBY):** 1 A maximum
• **Input Section:** Power factor corrected
## Key Features
• High peak and dynamic current delivery for demanding applications
• Pressurized Air Channel cooling with variable-speed fan control
• High Speed Mode (switch selectable) for maximum continuous airflow
• Mean Time To Repair: 5 minutes for power supply or fans
• Three accessible rear-panel air filters (tool-free cleaning)
• Exhaust cooling through sides and top
• Comprehensive protection: over-temperature, over-voltage, over-current, short-to-ground, and cross-supply short protection
• Full shutdown on protection event; recovery via standby or line recycle
• Rear-panel connector access to all supply voltages, remote on/standby, ACFAIL, SYSRESET, and +5VSTDBY
• Generates backplane logic signals ACFAIL* and SYSRESET* (VXI Specification Rev. 1.4 compliant)
• Solid-state automatic daisy-chain jumpering for VMEbus grant
• Injector surface rails supporting QUIC module insertion/extraction system
## Compatibility & Integration
Fully compliant with VXIbus Specification Revision 1.4, VMEbus System Specification Revision C.1, and VXIplug&play specification. Supports hot-plug module insertion and extraction with no tool requirements.
