Product Details

The XYCOM XVME-682, PN 74682-001, is a discontinued dual-slot 6U VMEbus PC/AT compatible processor module, built with dual-board construction including CPU board and I/O board, designed for XYCOM legacy VME racks and early embedded industrial control and data acquisition systems. It adopts Intel 80286 processor with software selectable clock speed of 6MHz,8MHz or 10MHz, optional 80287 floating-point coprocessor for high-precision calculation tasks. It is equipped with dual-port DRAM, standard 1MB and expandable up to 4MB, and 128KB EPROM for BIOS and firmware storage. It integrates Phoenix ROM BIOS, fully compatible with IBM PC/AT standard, supports DOS, VRTX and other classic real-time operating systems widely used in old industrial equipment.

This SBC carries EGA/CGA/MDA/Hercules graphics controller for local display output. It is equipped with SA450/ST506 hard disk interface, floppy disk controller, two RS232 serial ports, one parallel port and PS/2 keyboard and mouse interface, convenient for local debugging, parameter setting and data recording. It conforms to IEEE 1014 VMEbus specification, supports VME bus master and slave operation, A16/A24/A32 addressing and D16/D32 data transfer, with complete 7-level VME interrupt and bus arbitration function, capable of communicating and controlling analog input/output, digital I/O, counter and communication modules on the VME backplane.

Users can configure VME base address, interrupt mapping and memory allocation via on-board jumpers and DIP switches to avoid resource conflicts with other VME modules. On-board power filtering and transient suppression circuits reduce electromagnetic interference generated by inverters and servo drives, maintaining stable operation in noisy factory and test environments. The front panel is equipped with LED indicators for power status, pass and fault signals, helping maintenance technicians quickly judge boot status, 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 80286 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 early data acquisition systems, batch test control, old PC-based VME control system retrofit projects.

This 80286 PC/AT VME single board computer adopts standard 6U dual-slot 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-682 processor module is widely applied in legacy VME control racks and industrial automation upgrade projects. It serves as classic PC/AT compatible host to execute early industrial control software and coordinate VME backplane modules. As a reliable discontinued spare part, the XYCOM XVME-682 retains original VME bus timing and firmware compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.