The RadiSys EXM-10A is a universal Ethernet interface card designed for embedded system expansion in industrial computing environments. It provides multi-standard controller emulation—Western Digital WD8003E and WD8013, plus Novell NE2000 and NE2000+—supporting both 8-bit and 16-bit operation modes. The card connects via the RadiSys EXM expansion interface, an ISA-equivalent bus developed in 1989 that enables standard PC software deployment while maintaining modular, noise-immune I/O architecture for VME, VXI, and EMC systems.
Technical Specifications
Controller Emulation
• Western Digital WD8003E
• Western Digital WD8013
• Novell NE2000
• Novell NE2000+
Interface Modes
• 8-bit standard
• 16-bit (faster)
EXM Expansion Interface
• Electrically equivalent to PC ISA bus
• Supports up to 8 expansion modules per embedded PC
• Inverted RESET signal for improved noise immunity
• 15 GND lines for enhanced noise immunity
• Oscillator frequency: 14.31818 MHz (70 nanosecond period), 50% duty cycle, not synchronous with system clock
Network Transceivers
• 10-Base-T (twisted pair)
• 10-Base-2 (thin Ethernet)
• AUI connector for external transceivers (thick Ethernet)
Status Indicators
• Dual LED for transmit/receive activity
– Key Features
Parallel expansion architecture operates independently from the main industrial bus, eliminating performance degradation on primary pathways. The inverted RESET and enhanced ground plane architecture provide superior noise rejection in electrically noisy embedded environments. Multi-transceiver support accommodates diverse cabling topologies without additional interface hardware.
– Typical Applications
Embedded PCs requiring Ethernet connectivity within VME, VXI, or EMC chassis. Industrial systems leveraging legacy network controller software and drivers.
– Compatibility & Integration
Standard PC Ethernet drivers function directly due to ISA bus electrical equivalence. Integration into embedded PC platforms requires available EXM expansion slot.
Physical
• Weight: 360 gm
