Description
The VMIVME-7750-746000 is a high-performance, single-slot VMEbus Single Board Computer (SBC) originally engineered by VMIC (later acquired by GE Fanuc / Abaco Systems). Designed for heavy-duty industrial automation, defense, and real-time computing environments, this module integrates advanced Intel processing architecture onto the standardized VME backplane format.
Product Specifications (Datasheet)
- Brand / Manufacturer: GE Fanuc / VMIC (Abaco Systems)
- Model / Part Number: VMIVME-7750-746000 (Variant of the VMIVME-7750 Series)
- Product Name: Pentium III VME Single Board Computer (SBC)
- Form Factor: Standard VME 6U single-slot eurocard module
- Processor: Intel Pentium III processor (speeds up to 1.26 GHz with 512 KB Advanced Transfer L2 cache)
- Chipset: Intel 815E chipset with a 133 MHz system bus
- System Memory: Supports up to 512 MB PC133 SDRAM via a single 144-pin SODIMM
- Storage: Supports up to 1 GB of secondary IDE CompactFlash memory
- Graphics: Integrated AGP SVGA controller with 4 MB display cache
- Network Interfaces: Dual Ethernet interfaces (Intel 82559 and ICH2 chipset controllers) supporting 10BaseT and 100BaseTX via front-panel RJ45 ports
- Expansion: One 5V PCI Mezzanine Card (PMC) expansion site
- Operating Systems Supported: VxWorks, Windows XP, Linux, Solaris, QNX, LynxOS
Operating Guidelines and Usage Methods
Proper integration and handling of VME computer boards require strict adherence to standard electronic safety and rack installation procedures.
- ESD Precautions: Always utilize a certified grounded electrostatic discharge (ESD) wrist strap when handling the board to protect sensitive microprocessors and onboard surface-mount logic from static damage.
- Rack Installation: Align the module carefully with the top and bottom card guides of the VME enclosure, ensuring the board seats fully into the backplane connectors before tightening the front-panel captive screws.
- Environmental Control: Operate the host VME chassis within a clean, temperature-controlled industrial environment protected from excessive humidity and conductive dust accumulation.
Power-On and Power-Off Sequence
Adhering to correct energization protocols prevents electrical transients and safeguards system memory and storage drives.
- Power-On Sequence:
- Verify that the VMIVME-7750-746000 module is securely seated in its designated VME rack slot and external network/monitor cables are connected.
- Switch on the primary rack power supply feeding the system enclosure.
- Monitor the boot sequence, system BIOS diagnostics, and operating system loading status via the console or display output.
- Power-Off Sequence:
- Gracefully shut down the operating system via software commands to prevent file corruption on the CompactFlash or system memory.
- Power down the main electrical feeds supplying the VME rack enclosure.
- Allow internal circuits and power components to fully de-energize before unseating or servicing the board.
Product Instructions
The VMIVME-7750 acts as the master computing node or co-processor within a VMEbus rack, communicating with I/O and communication cards via its transparent PCI-to-VME bridge. The front panel features dual Ethernet ports, dual 16550-compatible serial ports (requiring micro-DB-9 adapters), and a combined PS/2 keyboard/mouse port. Keep chassis cooling fans clear to prevent thermal throttling of the Pentium III processor.
Frequently Asked Questions (Q&A)
- Q: What system is the VMIVME-7750-746000 module designed for?
- A: It is deployed within VMEbus-based industrial computer racks, real-time control systems, and defense or power automation setups requiring an x86 processing environment.
- Q: What type of storage does it use instead of a traditional hard drive?
- A: It supports solid-state boot options via onboard IDE CompactFlash storage (up to 1 GB capacity).
- Q: What should I check first if the board fails to boot?
- A: Verify backplane power supply voltage rails (+5V/+12V), check the physical seating of the SDRAM SODIMM module, and inspect front-panel link indicators.
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