The Radisys EXM-MX2 is a mass storage module engineered for VMEbus-based embedded systems. It integrates into the EXM expansion interface—an ISA bus-equivalent architecture—to deliver reliable local I/O expansion and data storage for demanding industrial applications. The module supports hard disk capacities from 500 MB to 2 GB, an integrated 1.44 MB floppy diskette drive, and optional external SCSI storage via front-panel connectors. Up to eight expansion modules can be added per embedded PC, with the EXM-MX2 occupying two or three VMEbus slots depending on internal disk capacity.
– Technical Specifications
• Hard Disk Capacity: 500 MB to 2 GB
• Secondary Storage: External SCSI hard disk up to 2 GB via front-panel 50-pin connector (MS-DOS environment)
• Floppy Drive: Integrated 1.44 MB drive with front-panel 34-pin connector for external 3.5″ or 5.25″ units
• Interface: IDE for internal hard drives; SCSI and 34-pin floppy connectors on front panel
• Power Requirements: +5V at 0.5 A and +12V supplies
• Form Factor: 6U VMEbus modules
• Dimensions: 0.5 in × 4.0 in × 7.0 in
• Weight: 1.00 lbs (EXM-MX configuration)
• VMEbus Slot Occupancy: Two or three slots, configuration-dependent
– Key Features
• Supply voltage indicator LEDs (+5V and +12V) and hard disk activity LED
• Modular architecture supporting up to eight expansion modules per embedded PC
• Compatible with all PC operating systems, not limited to MS-DOS
• Mounts to EXM expansion subplane with special right-most connector (BP-3, -4, -5, -6)
• External floppy expansion via standard 34-pin connectors; does not support ribbon cable 5V power derivation
– Typical Applications
Industrial embedded systems requiring reliable mass storage with flexible expansion, field-upgradeable floppy configuration, and multi-drive capacity.
– Compatibility & Integration
• Single EXM-MX2 module per system
• Incompatible with EXM-3, EXM-9 disk controllers, and EXM-MX series drives
• Operating environment specifications vary by drive type
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