Product Details

The XYCOM XVME-957, PN 70957-001, is a discontinued 6U double-height VMEbus storage subsystem, designed to match XYCOM XVME-67x and XVME-68x series PC/AT compatible VME single board computers, serving as an upgraded storage expansion option compared to XVME-955. It cannot operate independently and must be paired with a compatible host CPU board via the P2 backplane connector for IDE signal routing.

This module supports multiple storage configurations. Standard version integrates a 3.5-inch 1.44MB floppy disk drive and a 2.5-inch IDE hard disk, with optional IDE flash disk variant for vibration-sensitive scenarios without rotating media. The supported IDE hard disk capacity ranges from 500MB up to 6GB according to different part number revisions, such as 70957-003,70957-005,70957-014. The storage controller follows PC/AT IDE standard, which can be directly recognized by DOS and classic real-time operating systems without extra driver development. It adopts dedicated onboard power regulation circuit to supply stable power for internal disk media, and adds power filtering and surge suppression to reduce noise interference in industrial racks.

Users need to verify host CPU model, backplane P2 wiring definition and disk jumper settings before installation to avoid IDE resource conflicts. The front panel is equipped with floppy access window and activity LED indicators, which help maintenance personnel check disk read-write status during commissioning and routine inspection. The mechanical structure adopts anti-vibration reinforcement design, suitable for continuous operation in power plants, chemical control rooms, aerospace test benches and automated test equipment. This legacy storage subsystem is mainly supplied as spare replacement parts for existing XYCOM VME automation racks. Users need to check the health status of internal disk media and firmware compatibility before deployment. A conformal coated version is optional for high humidity, dusty and corrosive industrial sites. This model is widely used for system boot, control program storage and historical data recording in old PC-based VME control system retrofit projects.

This high-capacity IDE storage subsystem adopts standard 6U double-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status and disk activity 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 disk jumper configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-957 storage module is widely applied in legacy VME control racks and industrial automation upgrade projects. It provides high-capacity IDE disk and floppy storage for matched PC/AT VME SBC to realize system boot and field data recording. As a reliable discontinued spare part, the XYCOM XVME-957 retains original VME bus timing and IDE compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.