VMIC VMIVME-4900 Resolver Converter Board | Replacement, Equivalent & Selection Guide
The VMIC VMIVME-4900 is a high-precision resolver-to-digital converter board designed for VMEbus-based industrial control systems. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident selection decisions.
Technical Specifications
- Model: VMIVME-4900
- Manufacturer: VMIC (now part of Abaco Systems / GE Intelligent Platforms)
- Function: Resolver-to-Digital Converter (RDC)
- Bus Interface: VMEbus (IEEE 1014)
- Channels: Multi-channel resolver input (refer to datasheet for exact channel count)
- Resolution: Up to 16-bit angular resolution
- Input Signal: Resolver (sin/cos) analog signals
- Output: Digital position data via VMEbus backplane
- Operating Temperature: 0°C to +70°C (commercial grade)
- Power Supply: VMEbus-supplied (+5V, ±12V)
- Form Factor: Single-slot VME 6U board
- Weight: Approx. 650 g
- Compliance: CE, RoHS (verify with current datasheet)
Note: Always verify specifications against the official VMIC VMIVME-4900 datasheet before final design-in.
Compatible Replacement & Equivalent Models
When the VMIVME-4900 is discontinued, obsolete, or unavailable, the following models may serve as functional equivalents or drop-in replacements depending on your system configuration:
| Model | Manufacturer | Bus | Notes |
|---|---|---|---|
| VMIVME-4900/x | VMIC / Abaco | VMEbus | Variant/revision of same family |
| VMIVME-4901 | VMIC / Abaco | VMEbus | Next-generation RDC board, enhanced resolution |
| ICS-110B | ICS Electronics | VMEbus | Multi-channel resolver input, verify pinout |
| RVDT/RDC-VME Series | Various OEMs | VMEbus | Application-specific; confirm firmware compatibility |
Important: Replacement compatibility depends on firmware, driver support, and backplane configuration. Contact [email protected] for a validated cross-reference before ordering.
Why Choose the Original Model
- Proven field reliability in aerospace, defense, and industrial motion control applications
- Native VMEbus integration — no adapter or bridge required
- High angular resolution up to 16-bit for precision positioning
- Mature driver ecosystem with support for VxWorks, LynxOS, and Linux BSPs
- Long service life in legacy systems where re-qualification of replacements is costly
- OEM-validated for use in existing VMIC VMEbus chassis configurations
Typical Applications
- Aerospace flight simulation and avionics test rigs
- CNC machine tool axis position feedback
- Industrial servo motor control systems
- Radar antenna positioning and tracking systems
- Defense and military motion control platforms
- Power generation turbine shaft monitoring
- Robotics joint angle measurement
System Compatibility
- Chassis: Any standard VMEbus 6U chassis (e.g., VMIC VMIVME-7698, Elma, Schroff)
- Controllers: Compatible with VMIC SBC series, Motorola MVME, and other VMEbus single-board computers
- Operating Systems: VxWorks, LynxOS, Linux (with appropriate BSP), Windows (via bridge)
- Software: Compatible with VMIC API libraries; third-party RTOS support available
- Resolver Types: Standard 2-speed and 1-speed resolvers; verify excitation frequency with your resolver spec
Selection Guide
Use the following criteria to determine if the VMIVME-4900 is the right choice — or to identify the best alternative:
| Requirement | Recommended Action |
|---|---|
| Existing VMIC VMEbus system, same chassis | Order original VMIVME-4900 for direct drop-in |
| Need higher channel count | Evaluate VMIVME-4901 or multi-channel RDC alternatives |
| Migrating to CompactPCI or PXI | Contact us for platform migration guidance |
| Budget-sensitive replacement | Request refurbished/tested unit with warranty |
| Long-term supply assurance | Inquire about buffer stock or last-time-buy options |
Quality Assurance & Sourcing
- All units sourced through authorized distributors or verified secondary market channels
- Each board undergoes functional power-on testing prior to shipment
- Traceability documentation available upon request (COC, test reports)
- Refurbished units carry a 90-day replacement warranty
- New/sealed units supplied with original manufacturer packaging where available
- Anti-static packaging and ESD-safe handling throughout fulfillment
How to Order
- Confirm your chassis model and VMEbus slot availability
- Verify resolver type (excitation voltage/frequency, sin/cos signal levels)
- Contact us with your PO or RFQ: [email protected]
- Receive quotation with lead time, condition (new/refurbished), and warranty terms
- Place order — standard lead time 3–10 business days; expedited available
- Shipment with tracking, packing list, and test documentation
For bulk orders or long-term supply agreements, please request a dedicated account manager.
Replacement & Compatibility FAQ
Q: Is the VMIVME-4900 still in production?
A: The VMIVME-4900 is a legacy product. Availability depends on existing stock from authorized distributors or the secondary market. Contact us to check current inventory.
Q: Can I use the VMIVME-4901 as a direct replacement?
A: In most cases yes, but firmware and driver updates may be required. We recommend a compatibility review before substitution.
Q: Do you supply refurbished units?
A: Yes. All refurbished units are tested and carry a 90-day warranty. Condition and test reports are provided upon request.
Q: What resolver types are supported?
A: The VMIVME-4900 supports standard sin/cos resolver inputs. Verify excitation frequency and signal amplitude against your resolver’s datasheet.
Q: Can you help with VMEbus system migration?
A: Yes. Our engineering team can advise on migration paths to modern platforms (CompactPCI, PXI, PCIe). Contact us for a consultation.
Q: What is the lead time?
A: Typically 3–10 business days for in-stock units. Expedited shipping available. Contact us for exact availability.
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