The Keysight U5481B is an infrared-to-USB connectivity cable that bridges handheld test instruments to personal computers for real-time data acquisition and instrument control. This adapter enables measurement data transfer from Keysight’s U1700 Series Capacitor and LCR Meters and the U1401A Multifunction Calibrator/Meter, supporting data logging and remote control workflows without replacing the instrument itself.
Technical Specifications
• Interface: Infrared (IR) to USB
• Baud Rate: 19,200 bits per second maximum
• Cable Length: 1.5 meters
• Operating Temperature Range: 0 to 50°C
• Power Supply Voltage: 3.3 V to 5 V (instrument-supplied)
• Operating System Support: Windows 8
– Key Features
• Direct IR-to-USB conversion eliminates the need for legacy serial interfaces
• 1.5 meter cable length provides flexible instrument-to-computer spacing
• Fast data transfer at 19,200 bps supports efficient logging of measurement sequences
• Low-voltage operation compatible with battery-powered handheld meters
• Replaces the U5481A model with improved USB compatibility
– Typical Applications
• Automated capacitance and inductance measurement data collection
• Calibration tracking and compliance documentation
• Real-time LCR parameter monitoring during production testing
• Remote meter configuration and control from the test station PC
– Compatibility & Integration
The U5481B integrates with the following Keysight instruments:
• U1700 Series Handheld Capacitor Meters
• U1700 Series Handheld LCR Meters
• U1401A Handheld Multifunction Calibrator/Meter
Keysight supplies drivers, firmware, and software through its technical support resources. A datasheet and additional documentation are available to support integration planning.
