The Abaco Systems Ramix PMC663J is a dual 10/100BaseTX Ethernet controller implemented as a PCI Mezzanine Card (PMC). It delivers two independent 10/100 Mbit/s Ethernet ports with full-duplex operation at both speed tiers. A DMA engine paired with deep FIFO buffers sustains continuous full-bandwidth transfers while minimizing PCI overhead. The onboard PCI/PCI bridge optimizes host interface performance and reduces bus loading. Auto-negotiation automatically configures each port to the highest available mode, including bandwidth and duplex settings. Direct interconnection between two PMC663 boards via crossover cable establishes a dedicated 400 Mbit/s full-duplex path; hub and switch configurations are also supported. The card is well-suited for real-time deterministic networking and high-performance data paths.

Technical Specifications

• Manufacturer: Abaco Systems / Ramix
• Model: PMC663J
• Interface Type: PCI Mezzanine Card (PMC)
• PCI Compliance: PCI Rev. 2.1, IEEE 1386
• Ethernet Ports: 2 × 10/100BaseTX RJ45
• Speed per Port: 10 Mbit/s or 100 Mbit/s
• Operation Mode: Full-duplex at both 10 Mbit/s and 100 Mbit/s
• Internal Transfer Architecture: DMA engine with deep FIFO buffers

– Key Features

• Hardware auto-negotiation with user-level control via driver
• PCI/PCI bridge for optimized host connectivity and reduced bus loading
• Point-to-point, hub, and switched configurations supported
• Dual-port operation independent on each port

– Typical Applications

• High-performance real-time data interconnects
• Dedicated data paths between PMC-based systems
• Low-latency switched or direct-cabled networking in embedded platforms

– Compatibility & Integration

Drivers available for VxWorks, pSOS, LynxOS, Digital UNIX, HP-UX (10.x and 11.x), Solaris, and additional operating systems. Driver implementation integrates into host OS LAN protocol stacks, enabling full access to OS networking facilities. High-density card edge connector with RJ45 transition cable provides I/O connectivity.