Abaco Systems / Ramix PMC675 Dual 100BaseFX Ethernet Controller PMC Module

The Abaco Systems PMC675 is a dual 100BaseFX Ethernet controller PMC module engineered for high-performance embedded network applications. It combines two 100BaseFX Ethernet controllers, a 400 MHz PPC RISC processor, and an Intel 21555 PCI bridge on a single-slot PMC form factor, delivering local intelligence and fault-tolerant connectivity in space-constrained systems. The onboard processor executes network tasks independently, reducing host CPU load and enabling advanced features like automatic dual-rail switching and failover redundancy—critical capabilities for mission-critical applications transitioning from legacy FDDI infrastructure.

– Technical Specifications

• Form Factor: Single-slot PMC (PCI Mezzanine Card)
• On-Board Processor: PPC @ 400 MHz
• Memory: 64 MB DDR
• Ethernet Controllers: Dual 100BaseFX with SC, ST, or LC fiber connector support
• PCI Interface: 64-bit, 66 MHz, 3V & 5V signaling via Intel 21555 bridge
• Power Consumption: 5.5 W @ 0.5 A (5V)
• Operating Temperature: 0 to +60 °C
• Storage Temperature: -40 to +85 °C
• Operating Humidity: 5% to 95% non-condensing
• MTBF: 263,000 hours

– Key Features

• Onboard RISC processor offloads network processing from host system
• Optional failover firmware enables transparent network redundancy
• Embedded TCP/IP firmware option moves TCP/IP stack to module co-processor
• Data mover firmware supports direct buffer transfers
• Customizable firmware for application-specific intelligence
• Dual 100BaseFX ports for fiber-optic connectivity
• Conformal coating available

– Compatibility & Integration

Windows driver support confirmed. Drivers for VxWorks, Linux, LynxOS, and Solaris typically available for similar Abaco Systems products. Direct successor to the PMC665, leveraging standard PCI/PMC protocols for integration into existing embedded computing platforms.