The Keysight/Agilent/HP 54657A is a GPIB Measurement and Storage Module that extends the measurement and data acquisition capabilities of 54600 Series oscilloscopes. The module provides remote programming, automated testing, and unattended waveform monitoring through GPIB interface connectivity. It enables storage of acquired traces, frequency domain analysis via FFT, and mask-based testing with automatic pass/fail monitoring.
Technical Specifications
Interface & Connectivity
• GPIB (General Purpose Interface Bus) primary interface
• Remote programming capability via GPIB
Trace Storage
• 100 traces in nonvolatile memory
• 64K nonvolatile memory with data compression for up to 97 additional traces
• Three uncompressed nonvolatile trace memories
• Time and date tagging of stored traces and hardcopy output
Measurement Functions
• Three automatic voltage measurements: amplitude, preshoot, and overshoot
• Two automatic time measurements: delay and phase angle
• User-defined measurement thresholds selectable at 10%/90%, 20%/80%, or custom voltage levels
• Two additional cursor measurements (voltage in percent and time in degrees)
• Two additional cursor measurement sources from math functions 1 and 2
Waveform Math & Analysis
• Addition, subtraction, and multiplication operations
• Differentiation and integration functions
• FFT (Fast Fourier Transform) for frequency domain analysis
Mask Testing
• Automatic mask generation and editing
• Mask-based test monitoring and pass/fail detection
• Out-of-limit trace storage during unattended operation
Output Capability
• Hardcopy output without interrupting front-panel operation
– Key Features
The 54657A transforms oscilloscope data into actionable intelligence for automated test environments. Data logging, compression, and timestamp functionality support traceability and regulatory compliance. The combination of extended measurements, math functions, and mask testing eliminates manual waveform analysis tasks.
– Typical Applications
• Automated test systems requiring GPIB control
• Long-duration data logging and trend analysis
• Out-of-specification waveform detection and archival
• Frequency domain characterization via on-board FFT
• Pass/fail mask monitoring in production environments
– Compatibility & Integration
The module integrates with all 54600 Series oscilloscopes. Associated software (Keysight/Agilent/HP 34810B BenchLink/Scope) and GPIB cables (10833A, 10833B, 10833C, 10833D) support system configuration.


















