The Keysight/Agilent/HP E1472A is a VXIbus C-size, 1-slot register-based multiplexer module that provides six independent 1×4 RF signal routing channels. Each multiplexer operates at 50 Ohms impedance with tree-switched relay architecture, delivering high isolation and low VSWR performance across signals up to 1.3 GHz. Non-latching armature relays handle channel switching, enabling flexible signal path configuration in automated test systems without latching power consumption or complexity.
This module routes RF test signals to multiple instruments—oscilloscopes, spectrum analyzers, network analyzers, and distortion analyzers—within a single VXIbus mainframe. Programming occurs through SCPI commands, supporting sequential channel scanning where each channel switches to its common port in programmed order. The E1472A expands beyond its six 1×4 multiplexers using E1473A 50 Ohm or E1475A 75 Ohm RF multiplexer expanders, scaling test capacity as requirements grow. External relay control is supported for 5V, 12V, and 24V drive circuits, enabling integration with ancillary switching hardware.
SMB male connectors provide RF connections, ensuring minimal signal loss and impedance discontinuities. Installation requires a C-size VXIbus mainframe with a command module such as the E1406 to manage control and timing functions.
Technical Specifications
• Impedance: 50 Ohms
• Maximum Signal Frequency: Up to 1.3 GHz
• Multiplexer Configuration: Six independent 1×4 multiplexers
• Relay Architecture: Tree-switched, non-latching armature type
• Connectors: SMB male
• External Relay Drive Support: 5V, 12V, 24V
– Key Features
• Six fully independent multiplexer channels operate simultaneously
• Tree-switched relay topology minimizes isolation loss and VSWR
• Non-latching relay design reduces power draw and thermal load
• Expandable architecture via E1473A and E1475A multiplexer expanders
• SCPI programming enables automated channel sequencing and control
• External relay drive capability extends integration flexibility
– Typical Applications
• Automated RF test signal routing
• Multi-instrument test system switching
• Production test environments requiring high-speed signal multiplexing
• Component and assembly characterization across frequency bands up to 1.3 GHz
– Compatibility & Integration
The E1472A operates as a slave device within VXIbus C-size mainframes. Command modules such as the E1406 provide system timing and control. Functionally equivalent to the E1474A, differing only in output impedance specification.
