The PMC665 is an intelligent dual-channel 100BaseFX Ethernet module engineered for high-performance embedded networking. This PCI Mezzanine Card (PMC) delivers two independent 100 Mbit Ethernet connections over multi-mode fiber optic media, each terminated with SC-style connectors. An on-module I/O co-processor offloads network processing tasks from the host, improving overall system throughput and reducing CPU overhead.
Technical Specifications
• Form Factor: PCI Mezzanine Card (PMC), compliant with CMC specification
• Ethernet Interfaces: Two independent 100BaseFX ports
• Media Type: Multi-mode fiber optic
• Physical Connectors: Dual SC-style fiber connectors
• Host Bus Interface: PMC connector for direct integration with Single Board Computers (SBCs)
• On-Module Processing: Dedicated I/O co-processor for task offloading
• Embedded Protocols: TCP/IP support
– Key Features
• Dual independent 100 Mbit fiber Ethernet channels eliminate single-point bottlenecks in networked embedded systems
• On-module I/O co-processor reduces host CPU utilization and latency for high-throughput applications
• Data Mover Firmware accelerates bulk data transfer operations
• Fail Over Firmware enables redundancy and link recovery
• Trunking Capabilities allow logical aggregation of both ports for increased bandwidth
• Multi-mode fiber extends reach within cabinet and facility deployments
• SC connectors provide industry-standard, field-proven optical termination
– Typical Applications
The PMC665 suits deployed systems requiring dual fiber Ethernet with minimal host processor involvement—real-time industrial controllers, high-availability network appliances, embedded data acquisition systems, and distributed computing platforms relying on compact mezzanine card expansion.
– Compatibility & Integration
The PMC665 mounts directly onto any host board supporting the PMC connector specification. For systems using card-edge PCI architecture, the Ramix PMC239 adapter enables rapid integration during prototyping and development phases.

















