The Keysight (Agilent) E8403A is a 13-slot, C-size VXI mainframe that serves as the central platform for modular test and measurement systems. It delivers 1000 W of usable power to support complex automated test configurations while maintaining stable operating conditions through advanced cooling and backplane design. The mainframe accepts C-size VXI modules and provides comprehensive power distribution across seven voltage rails with tight regulation and low ripple/noise characteristics.
Technical Specifications
Chassis Configuration
• 13-slot C-size VXI mainframe
• Improved backplane design with surface mount technology and stripline signal performance
• Usable power output: 1000 W
Power Input
• Input voltage range: 90 VAC to 264 VAC (single continuous range)
• Input frequency: 47 Hz to 66 Hz (standard); 360 Hz to 440 Hz alternative (90 VAC to 132 VAC; not recommended due to potential safety limit violations)
• Inrush current at 110 VAC: 25 A typical
• Inrush current at 264 VAC: 55 A typical
• Estimated total input power: 1.4 × (Output Power + 70 W)
VXI Output Voltages
• +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
• +5VSTDBY: Up to 1 A (user-supplied via diagnostic connector pins 8 and 21)
– Key Features
• Innovative air distribution system providing quiet, efficient cooling with separate power supply cooling fan(s)
• Rear-accessible power supply and cooling systems designed for field maintenance
• Plug-in power supply architecture for rapid component replacement
• Front-panel diagnostic connector for local or remote system monitoring
• Optional air filter kit (option 938) available for contaminated environments
• QUIC easy module insertion and extraction system with injector surface rails
– Compatibility & Integration
• VXI Specification and VXIpnp compliant
• Accommodates C-size VXI modules
• Integrable into multi-mainframe systems via MXI II interfaces
• Basic mainframe monitor included


















