XYCOM XVME-682 – 6U VMEbus Controller Board for Legacy System Uptime and Industrial Control

The XYCOM XVME-682 is a 6U VMEbus controller board commonly used as the system master in industrial and defense-grade racks. From my experience, plants keep these boards in service because they’re stable, proven, and play nicely with existing VME I/O. If you’re maintaining an aging line, adding spare capacity, or migrating software in stages, the XVME-682 helps you extend the life of the platform without rewriting everything at once.

You might notice that units in the XVME-6xx family typically combine a CPU, VME system controller functionality, and pragmatic I/O like serial and Ethernet, sometimes with SCSI or IDE for storage. That mix is why they remain a safe drop-in for supervisory control, motion coordination, test stands, and other time-sensitive tasks in VME backplanes.

Our Order Process and Guarantees

• Warranty: 365 days coverage
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Shipping: FedEx, UPS, DHL express options
• Testing: Functional verification prior to dispatch in most cases
• Packaging: ESD-safe and foam-protected to reduce transit risk

Key Features

• 6U VMEbus system controller – Designed to operate as the master on a standard VME backplane for deterministic control tasks.
• Legacy-friendly architecture – Typically supports long-standing OS and toolchains used in industrial and ATE environments.
• Built-in communications – Common configurations include serial ports (RS-232/422) and 10BASE‑T Ethernet; helpful for HMIs, PLC links, or SCADA gateways.
• Onboard storage interfaces – Many units provide SCSI-2 or IDE connectivity for OS boot and data logging.
• Field-replaceable form factor – 6U Eurocard dimensions allow fast slot-level swaps with minimal wiring disturbance.
• Proven in harsh conditions – In many cases specified for 0–55°C operation with forced-air cooling, which suits enclosed cabinets.
• Long-term service strategy – A sensible option to extend life of VME assets while planning phased modernization.

Technical Specifications

The details below reflect the typical characteristics of the XYCOM XVME-6xx controller family and the XVME-682. Exact I/O population can vary by build; we’ll confirm against your part and revision before shipment.

Where it’s typically used

• Upgrading legacy test stands without changing qualified software
• Maintaining motion/PLC coordination layers in packaging and printing lines
• Supervisory control in VME-based SCADA or data acquisition frames

A maintenance lead from a food plant told us the swap took “one shutdown window, no rewiring,” which is exactly what most teams want when uptime is tight.

Related or Supporting Products

• XYCOM XVME-654 – Later-generation VME SBC many teams consider when they need more CPU headroom; typically more RAM and integrated Ethernet.
• XYCOM XVME-675 / XVME-690 – Comparable controller boards used as drop-in alternatives in some racks; check OS and I/O population before substituting.
• Motorola MVME-162 / MVME-167 – Popular non-XYCOM VME SBCs; often chosen when software stacks already support MVME firmware.
• GE Fanuc VMIVME-7696 – Pentium-class VME SBC used in mixed-vendor chassis; good for Windows/RT targets.
• VME rear I/O transition modules – For clean routing of serial/Ethernet/storage to the rear of the chassis; reduces front-panel cabling.
• 6U VME chassis, backplanes, and PSUs – Ensure adequate +5 V current and cooling; we can match backplane slot counts and airflow to your load.

Installation & Maintenance

• Cabinet & cooling – Use a 6U VME chassis with directed airflow across the card cage. Keep inlet filters clean; target 0.5–1.0 m/s front-to-back flow in most cases.
• Power & grounding – Stable +5 V rail with sufficient current headroom; verify chassis ground integrity to avoid serial noise and VME retries.
• Slotting – Install in the designated system controller slot; ensure P1/P2 are fully seated before tightening the injector/ejector handles.
• Wiring – Route serial/Ethernet away from high-voltage lines. If rear transition modules are used, secure strain relief to minimize connector wear.
• Safety – Observe ESD precautions; de-energize the rack before insertion/removal to prevent connector arcing and data corruption.
• Routine care – Quarterly dust removal with dry air (<2 bar). Annual visual inspection for bulging capacitors and connector oxidation. Replace CMOS battery proactively every 3–5 years.
• Firmware & backups – Keep a known-good BIOS/firmware image and boot media. Clone OS/storage after each change; it saves hours when swapping boards.

Quality & Certifications

• CE and UL/CSA compliance on most production units from this series
• Manufactured under ISO 9001 quality systems by the original vendor
• RoHS status varies by vintage; legacy units are typically non‑RoHS
• 365‑day warranty provided by our facility