Key Technical Specifications
- Product model: VMIVME-7750-746001 (350-027750-746001 P)
- Manufacturer: GE
- Bus standard: VMEbus IEEE 1014
- Processor: 1 GHz embedded CPU
- Memory: Onboard RAM, soldered flash memory for boot firmware
- Network: Dual 10/100BASE-T Ethernet ports
- Front panel I/O: Serial port, USB, reset switch, status LEDs
- VME operation: Acts as VMEbus master and slave
- Supply: +5 VDC from VME backplane
- Operating temperature: 0 °C to +55 °C, non-condensing
- Form factor: 6U VME card
- Mounting: Slot mount inside standard 6U VME rack
Product Introduction
The VMIVME-7750 is a 6U VME single-board computer built for industrial real-time control systems. It boots from local flash and runs application software to control VME rack I/O modules. This SBC can operate as VMEbus master to access other VME cards. Dual Ethernet ports support redundant network links, and it reports boot and runtime status via front-panel LEDs.
Installation & Configuration Guide
Preparation (10 min)
Lock out VME rack +5 VDC power. Backup the existing application firmware and configuration files. Inspect target slot backplane pins for bending or corrosion. Calculate total rack power draw to maintain 20% spare capacity.
Removal (5–10 min)
Loosen the front panel retention screws. Pull the board straight outward. Do not bend the PCB or lever the edge connector. Photograph jumpers and switch settings before removal.
Installation (10 min)
Align the 6U edge connector with the VME backplane. Insert the card fully into the slot. Tighten front panel screws evenly so the card sits flush with the rack.
Power-On & Test (10 min)
Restore rack power. Watch front panel LEDs for boot progression. Connect to the serial debug port to verify boot sequence. Confirm VMEbus enumeration and Ethernet link. Load the target application and validate VME I/O access.
Troubleshooting Quick Reference
- No boot LED activity: Check VME backplane +5 VDC; reseat card; inspect backplane pin damage.
- Boot stops at firmware prompt: Verify flash image integrity; check boot jumper/switch settings.
- Ethernet link down: Inspect RJ45 cable and link speed negotiation; check network switch port.
- Cannot access VME I/O cards: Confirm SBC is set as VME master; check address map configuration.
- Intermittent system crash: Check rack cooling airflow; inspect for loose backplane connection.
Dimensions, Mounting & Wiring Notes
Overall dimensions: 233.4 mm × 160 mm × 20 mm. Unit weight is approximately 0.62 kg. It is a standard 6U VME form factor for VMEbus chassis. Front panel ports: Ethernet, serial and USB. Use shielded Ethernet cable for industrial cabinet use. Keep network cables separated from high-current power wiring.
FAQ
Q: Can I swap this card directly into any 6U VME rack? A: The physical form factor fits most 6U VME chassis. Your application firmware and VME address map must support this specific hardware revision. Test before commissioning.
Q: I’m replacing a VMIVME-7750 card. Do I need to reload firmware? A: If the replacement board’s flash is preloaded with your matching firmware, you may retain operation. Always backup the original firmware before removal.
Q: What causes boot failures on this SBC? A: Corrupted flash firmware, incorrect boot switch settings, or backplane power instability are the top causes. Flash storage degradation also occurs with age.
Q: Can I use both Ethernet ports at the same time? A: Yes. Dual ports can be used for separate networks or redundant paths, configured in your operating system.
Q: Is this unit new factory sealed? A: Factory-new OEM stock is discontinued. Available stock is professionally tested refurbished surplus.
Q: What warranty applies to this spare? A: 12-month standard warranty. Function verified under controlled test conditions; warranty excludes application software and field network faults.
Q: I’m wondering if this board can run custom VxWorks images. A: Yes. It was designed for VxWorks real-time operating system. Confirm your VxWorks BSP supports this exact hardware revision.
