The Agilent/Keysight E1409B is a C-size VXI chassis shield engineered to reduce electromagnetic interference (EMI) and radio frequency interference (RFI) in high-density test systems. Installed in unoccupied mainframe slots, it provides grounded shielding between adjacent VXI modules without consuming module real estate. The shield maintains signal integrity and measurement reliability in sensitive instrumentation environments by establishing intermodule electromagnetic isolation.
Technical Specifications
• Type: C-size chassis shield
• Weight: Approximately 10 lbs
• Dimensions: 12 x 10 x 8 inches
• Construction: Insulated steel shield with four conductive module guides, mounting hardware, and instructions
• Compliance: VXIbus Specification Rev. 1.4, B.7.3.4
– Key Features
• MIL-STD-461 Compliance: Meets CE01, CE03 (relaxed 30 dB below 2 MHz, relaxed 10 dB between 2 and 15 MHz), CS01, CS02, CS06, RE01 (relaxed to 10 dB), RE02, RS02, and RS03
• Intermodule Shielding: Grounded shielding between adjacent VXI modules reduces cross-talk and noise coupling
• Slot Installation: Fits into unoccupied VXI mainframe slots; no external footprint required
• Front-to-Rear Performance: 32% worst-case front-to-rear variance observed during performance testing
– Typical Applications
• High-density VXI test systems requiring enhanced electromagnetic isolation
• Multi-slot configurations where signal integrity is critical
• EMI/RFI mitigation in automated test equipment (ATE) environments
• Compliance validation of sensitive measurement instruments
– Compatibility & Integration
• Supported Mainframes: Agilent/Keysight E1401B and E1421B VXI Mainframes
• Installation Requirements: Cable Tray Kit required; Option 918 factory installation available
• Related Accessories: Backplane Connector Shield Kit (Agilent E1400-80920)

















