The HP/Agilent 54655A is a GPIB test automation module that extends the capabilities of 54600-series oscilloscopes and logic analyzers with remote programming and autonomous test execution. This accessory enables creation and execution of up to 100 nonvolatile test sequences without external computer control, making it ideal for production environments and unattended measurement campaigns.
## Technical Specifications
• **Interface:** GPIB (General Purpose Interface Bus)
• **Test Sequences:** Up to 100 nonvolatile sequence steps
• **Mask Templates:** Up to 40 nonvolatile storage slots
• **Trace Memories:** 2 nonvolatile trace memory slots
• **Mask Testing:** Programmable pass/fail branching with built-in mask editor
• **Output:** Hardcopy output supported
## Key Features
• Full GPIB remote programmability for integration into automated test systems
• Autonomous operation—execute complete test sequences without a controlling computer
• Integrated mask editor for rapid waveform mask creation and modification
• Nonvolatile storage ensures test configurations and results persist across power cycles
• Pass/fail branching enables conditional test flow and adaptive measurements
## Typical Applications
• Automated production testing and go/no-go verification
• Mask-based signal integrity validation and compliance testing
• Unattended long-duration measurement campaigns
• Integration into GPIB test racks and automated test equipment (ATE) systems
## Compatibility & Integration
The 54655A (suffix “A”) is compatible with all 54600-series oscilloscopes. The 54655B variant supports 54600B-series scopes and the 54645A/D models. For the 54645A/D, 54615B, 54616B/C, and 54620A/C logic analyzer, GPIB functionality is limited to I/O operations. The module does not support the 54615B, 54645A, or 54645D when using the 54655A or 54656A variants.
