The Keysight E8403A is a C-size, 13-slot VXI mainframe purpose-built for high-power test and measurement systems. It supplies 1000 W of usable power across seven regulated voltage rails, meeting VXIbus Specification Revision 1.4 and VMEbus System Specification Revision C.1. The mainframe integrates an efficient cooling architecture with variable-speed fan operation and independent power supply cooling paths to maintain thermal stability in demanding environments. Automatic daisy-chain jumpering on the backplane eliminates manual VMEbus grant and interrupt acknowledge line configuration. The QUIC module insertion system enables rapid swapping of VXI cards without tools.
Technical Specifications
Power Delivery
• Usable power output: 1000 W
• Input voltage range: 90 VAC to 264 VAC, single continuous range
• Input frequency: 47 Hz to 66 Hz (full voltage range)
• Inrush current: 25 A typical @ 110 VAC; 55 A typical @ 264 VAC
• Estimated total input power: 1.4 × (output power + 70 W)
Output Voltage Rails (0–55°C)
• +5 V: ±0.25 V / –0.125 V, 50 mV ripple/noise
• +12 V: ±0.60 V / –0.36 V, 50 mV ripple/noise
• –12 V: –0.60 V / +0.36 V, 50 mV ripple/noise
• +24 V: +1.20 V / –0.72 V, 150 mV ripple/noise
• –24 V: –1.20 V / +0.72 V, 150 mV ripple/noise
• –5.2 V: –0.26 V / +0.156 V, 50 mV ripple/noise
• –2 V: –0.10 V / +0.10 V, 50 mV ripple/noise
• +5 V standby (user-supplied): up to 1 A via diagnostic connector pins 8 and 21
Interfaces & Monitoring
• Front-panel diagnostic connector for local and remote system monitoring
• Remote On/Standby switching capability
• Mainframe status indicators for operational monitoring
– Key Features
• 13-slot C-size form factor for compact integration
• Automatic VMEbus daisy-chain jumpering simplifies backplane configuration
• High-performance impeller with separate power supply fan circuit
• QUIC module insertion and extraction system
• VXI Specification and VXIplug&play Specification VPP-8 compliant
– Compatibility & Integration
The E8403A accepts standard VXI modules and integrates directly into systems requiring VMEbus arbitration and interrupt acknowledge protocols. Input power accepts global utility ranges without modification.
