The Keysight/Agilent/HP E8401A is a C-size, 13-slot VXI mainframe that serves as the foundational platform for integrated automated test equipment (ATE) systems. It accommodates a diverse range of VXI modules to build comprehensive test and measurement solutions with emphasis on reliable operation, efficient thermal management, and straightforward maintenance.
Technical Specifications
Chassis
• Form factor: C-size
• Slot count: 13 slots
• Usable power: 500 W
Power Input
• Input voltage: 90 VAC to 264 VAC (47 Hz to 66 Hz); 90 VAC to 132 VAC (360 Hz to 440 Hz)
• Maximum input current: 25 A typ at 100 Vac
Cooling
• Innovative air distribution system with extremely quiet, efficient operation
• Variable or Full Speed fan modes via front panel switch
• Dedicated power supply cooling fan with independent air path
Backplane Architecture
• Solid-state automatic daisy-chain jumpers for VMEbus Grant and Interrupt Acknowledge—no manual switch configuration required
• Full differential CLK10 signal distribution to minimize jitter and skew
System Monitoring & Diagnostics
• Front-panel status indicators for normal operating conditions
• Diagnostics connector for local or remote monitoring of supply voltages, temperatures, and fan function
• RS-232 interface for remote monitoring
– Key Features
• VXI Specification compliance including injector surface rails for QUIC easy module insertion and extraction
• VXIplug&play compliant
• Supports VXIbus communication
• Improved backplane design optimized for signal integrity
– Typical Applications
The E8401A is suited for construction of automated test systems requiring modular, scalable architectures. It provides the electrical backbone and thermal infrastructure for multi-slot VXI instrument configurations in laboratory, manufacturing, and field-service environments.
– Compatibility & Integration
Fully compatible with standard VXI modules. QUIC easy insertion/extraction system enables rapid module installation and removal without tools. Supports integration with existing VXI-based test benches and automated measurement frameworks.
