Product Details

The XYCOM XVME-675 is a discontinued single-slot 6U VMEbus PC/AT compatible processor module, upgraded version of XVME-674, designed for XYCOM legacy VME automation racks and rugged embedded industrial measurement and control systems. It adopts Intel 80486DX4 100MHz processor with integrated math coprocessor and 16KB internal cache, delivering higher computing performance than 486DX2 models, suitable for running DOS and classic real-time operating systems for old industrial equipment. It supports 16MB or 32MB zero-wait-state DRAM, meeting the memory requirements of industrial control programs and data buffering tasks.

This SBC integrates Super VGA graphics controller with 1MB display memory, supporting resolution up to 1024×768 at 256 colors for local human-machine display and debugging. It carries IDE hard disk controller, floppy disk controller, two RS232 serial ports, one EPP/ECP parallel port and PS/2 keyboard and mouse interface. A reserved PC/104 expansion site is available for adding custom I/O and communication modules to extend system functions. It conforms to IEEE 1014 VMEbus specification, and can operate as VME bus master and slave, supporting A16/A24/A32 addressing and full 7-level VME interrupt system. It has hardware watchdog timer to realize automatic reset when system crashes, improving long-term unattended operation reliability.

Users can configure VME base address, interrupt mapping and memory allocation through BIOS and on-board jumpers to avoid resource conflicts with analog acquisition, digital I/O, counter and communication modules on the backplane. On-board power filtering and transient suppression circuits reduce electromagnetic interference from inverters and servo drives, keeping stable operation in noisy factory and test environments. The front panel is equipped with LED indicators for power status, PASS and FAIL status, reset and abort buttons, helping maintenance technicians quickly judge boot state, bus error and runtime faults during commissioning and routine inspection. The PCB adopts industrial-grade electronic components and reliable EMC protection design, capable of resisting vibration, dust and temperature fluctuation in aerospace test benches, power plant monitoring systems, semiconductor test equipment and automated production lines. This legacy 486DX4 VME CPU board is mainly supplied as spare replacement parts for existing XYCOM VME automation systems. Users need to confirm firmware version, memory configuration and backplane definition before installation. A conformal coated version is optional for high humidity, dusty and corrosive industrial sites. This model is widely used in data acquisition hosts, batch test control, old PC-based VME control system retrofit projects.

This 486DX4 PC/AT VME single board computer adopts standard 6U single-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status, pass and fault status for convenient on-site inspection. The operating temperature range is 0°C to 65°C, storage temperature ranges from -40°C to +85°C, relative humidity 5% to 95% non-condensing. It complies with industrial shock, vibration and EMC standards and has CE certifications. It supports memory mapping and interrupt configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-675 processor module is widely applied in legacy VME control racks and industrial automation upgrade projects. It serves as upgraded PC/AT compatible host to execute early industrial control software and coordinate VME backplane modules. As a reliable discontinued spare part, the XYCOM XVME-675 retains original VME bus timing and firmware compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.