Agilent / Keysight E1401B C-Size VXI, High-Power Mainframe, 13-Slot

The Agilent/Keysight E1401B is a C-size, 13-slot VXI mainframe built for high-power test and measurement in aerospace, defense, and telecommunications. It integrates multiple VXI modules with substantial peak and dynamic current delivery across all supply rails. The mainframe combines Pressurized Air Channel cooling, automatic VMEbus daisy-chain jumpering, and tool-free QUIC module insertion to reduce setup time and maintenance overhead.

Technical Specifications

• VXIbus Revision 1.4, VMEbus Revision C.1


• 13 C-size slots; accepts A- or B-size modules with optional E1403 Module Carrier Power Supply:


• Output: 1690 W @ 25°C (120–240 Vac input); 900 W usable @ 25°C


• Usable power reduced at elevated temperature: 800 W @ 40°C, 650 W @ 55°C


• Input: 100/120 Vac and 220/240 Vac auto-select; 50 Hz, 60 Hz, and 400 Hz compatible; DC power line option


• Power factor corrected input


• Output rails: +5 V (65 A peak, 60 A @ 40°C, 9.0 A dynamic); +12 V (14 A peak, 12 A @ 40°C, 2.5 A dynamic); –12 V (14 A peak, 12 A @ 40°C, 2.5 A dynamic); +24 V (14 A peak, 12 A @ 40°C, 5.0 A dynamic); –24 V (12 A peak, 10 A @ 40°C, 5.0 A dynamic); –5.2 V (65 A peak, 60 A @ 40°C, 8.5 A dynamic); –2 V (35 A peak, 30 A @ 40°C, 4.5 A dynamic)


• Full overvoltage, overcurrent, and temperature protection; ACFAIL* and SYSRESET* logic signaling per VXI 1.4 Cooling System:


• Pressurized Air Channel with three variable-speed circulation fans


• 60 W per slot @ 10°C rise; 75 W per slot @ 15°C rise Backplane Features:


• Solid-state automatic daisy-chain jumpering for VMEbus grant and interrupt lines


• Eliminates manual switch configuration

Serviceability Rear-panel access to airflow and power supply components enables Mean Time To Repair of approximately 5 minutes for power supply or fan replacement.