Description
VMETRO VBT-325 — VMEbus Analyzer
Technical Specifications
- Product Model: VBT-325
- Brand: VMETRO (Curtiss-Wright)
- Warranty: One Year
- Input Voltage: 5 V DC (VMEbus powered)
- Operating Temperature: 0 °C to +55 °C
- Storage Temperature: -20 °C to +70 °C
- State Analysis Speed: Up to 25 MHz
- Timing Analysis Speed: Up to 50 MHz (200 MHz optional)
- Trace Memory: 32K samples per bus (expandable to 1M optional)
- Channels: 101 VMEbus signals; VBT-325C adds 64 P2 channels
- Trigger Levels: 16-level sequencer with cross-triggering
- Protocol Support: VMEbus Rev C.1/D, VSB, SCSI, user-defined
- Form Factor: 6U VMEbus module
- Weight: Approx. 0.8 kg
Product Overview
The VBT-325 is a high-performance VMEbus analyzer that captures, decodes, and times bus transactions in real time, serving as a diagnostic and verification tool for embedded and industrial computing systems. It monitors all bus cycles without interfering with operation, helping engineers detect timing violations, protocol errors, and system bottlenecks. This addresses the difficulty of debugging parallel, high-speed bus systems where faults are intermittent or load-dependent. Hardware developers, system integrators, and field support teams rely on it to validate designs, certify compliance, and resolve intermittent faults in deployed VME-based equipment.
Key Functions
- Full-Bus State and Timing Capture: Samples all 101 VMEbus signals synchronously at up to 25 MHz in state mode, or asynchronously at up to 50 MHz in timing mode, showing exactly when signals change relative to bus activity.
- Advanced Trigger and Sequencing: 16-level conditional sequencer with range, counter, and delay resources lets users isolate complex or rare fault conditions, capturing only relevant data to maximize memory depth.
- Protocol Decoding and Statistics: Automatically identifies transaction types, addresses, widths, and errors; computes bus utilization, transfer rates, and error counts to highlight performance and compliance issues.
- Dual-Bus Analysis (VBT-325C): Simultaneously captures VME and P2/VSB/SCSI activity with cross-triggering, enabling correlation between host bus and secondary bus or I/O behavior in multi-board designs.
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