The Abaco Systems / Ramix PMC661 is a PCI Mezzanine Card (PMC) that delivers 10/100 Mbit Ethernet connectivity for embedded systems. This interface card supports both 100Base-TX and 10Base-T standards with full-duplex operation across both speed modes. An integrated Ethernet/PCI engine with powerful DMA and deep FIFO buffers enables continuous full-bandwidth data transfer while minimizing PCI overhead. Auto-negotiation automatically configures the link to the highest available operating mode and duplex setting.

Technical Specifications

Networking Interfaces
• Form Factor: PCI Mezzanine Card (PMC), PCI Rev. 2.1 and IEEE 1386 compliant
• Data Rates: 10 Mbit/s and 100 Mbit/s
• Standards: 10Base-T and 100Base-TX
• Duplex: Full duplex at both 10 Mbit/s and 100 Mbit/s
• Auto-Negotiation: Automatic configuration to highest operating mode, bandwidth, and duplex settings

Performance Architecture
• DMA Engine: Integrated for efficient packet transfer
• FIFO Buffers: Deep buffering for continuous data flow
• PCI Overhead: Minimized through engine design

– Key Features

• Point-to-point direct cabling with crossover connection support for dedicated full-duplex 100 Mbit/s paths
• Hub and switch compatibility for scalable network topologies
• Single Micro Connector (PMC661) interface

– Typical Applications

The PMC661 targets high-performance embedded interconnects where real-time determinism is required, particularly in configurations using two cards with direct crossover cabling for dedicated bandwidth paths.

– Compatibility & Integration

Software Support
• Drivers available for VxWorks, pSOS, LynxOS, and Digital UNIX
• Integration with host OS LAN protocol stack
• User-accessible auto-negotiation control
• One OS license included per card

System Integration
• Compatible with card edge PCI systems via appropriate adapters (GE Fanuc embedded systems)
• Suitable for systems requiring PMC mezzanine module deployment