Product Details

The XYCOM XVME-979 is a discontinued 6U double-height VMEbus mass storage module, designed for XYCOM XVME-65x and XVME-66x series Intel-based PC/AT VME single board computers. It cannot work independently and receives EIDE/ATAPI and floppy signals from the host CPU via the VME P2 backplane connector, which can be used together with XVME-977 storage module in the same chassis for multi-drive combination deployment.

This module has six standard sub versions for different optical media configurations. XVME-979/1 is CD-ROM with external floppy connector; XVME-979/2 integrates CD-ROM, 2.5 inch hard disk and external floppy connector; XVME-979/3 is CD-R/W with external floppy connector; XVME-979/4 integrates CD-R/W, hard disk and external floppy connector; XVME-979/5 is DVD-R/W with external floppy connector; XVME-979/6 integrates DVD-R/W, hard disk and external floppy connector. It adopts EIDE ATAPI interface, supports PIO Mode 4 and DMA Mode 2, the maximum transfer rate reaches 16.6MB/s, and can support up to 33.3MB/s. It is compatible with DOS, Windows and classic real-time operating systems, no special driver required for standard ATAPI optical drives. It supports multi-session CD, photo CD, video CD and enhanced CD reading, which is convenient for program upgrade, data backup and batch file import of old industrial control systems. The onboard power regulation and EMC filter circuit are powered by VME P1 and P2 connectors, which suppress backplane noise and crosstalk from inverters and servo equipment, improving the stability of optical disc reading and writing in industrial racks.

Users need to confirm the host CPU model, backplane P2 pin definition and master-slave jumper settings before installation, reasonably allocate IDE master and slave devices when used with XVME-977 to avoid IDE resource conflicts. The front panel is equipped with optical drive access window and activity LED indicators, which can intuitively display power supply, optical drive read/write and hard disk working status for convenient commissioning and daily maintenance. The mechanical structure adopts industrial anti-vibration reinforcement design, suitable for long-term continuous operation in power plant monitoring, chemical control rooms, aerospace test benches and automated test equipment. This legacy optical storage module is mainly supplied as spare replacement parts for existing XYCOM VME automation racks. Users need to check the optical drive reading performance and verify BIOS compatibility before deployment. A conformal coated version is optional for high humidity, dusty and corrosive industrial sites. This model is widely used in old VME control system renovation projects for system program upgrade, configuration backup and historical data archiving.

This optical and hard disk mass storage module adopts standard 6U double-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status and drive 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 IDE master-slave jumper configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-979 storage module is widely applied in legacy VME control racks and industrial automation upgrade projects. It provides ATAPI optical drive and optional hard disk storage expansion for matched XVME-65x/66x VME SBC to realize program upgrade and data backup. As a reliable discontinued spare part, the XYCOM XVME-979 retains original EIDE ATAPI signal timing compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.