The DSS Networks 5262-LC is a dual-port Gigabit Ethernet PMC mezzanine card delivering 1000 Base-X fiber connectivity in a compact IEEE 1386 form factor. Engineered around an Intel Gigabit Ethernet chipset with 64-bit PCI bus mastery, this module sustains 245 MB/sec per port and achieves up to 1,000,000 frames per second at wire speed in full-duplex operation. The card integrates advanced packet processing—including TCP/UDP/IP checksum offload, VLAN support, priority queuing, and silicon-based packet filtering—while maintaining minimal CPU overhead through DMA-driven architecture.
The 5262-LC operates across 64-bit PCI buses at 133, 100, or 66 MHz (PCI 2.2 compliant) and sustains 242 MB/sec raw throughput on 64/66 PCI configurations or 118 MB/sec on 32/33 PCI. Dual independent ports support jumbo frames and buffer descriptor-based frame transfer, making it suitable for high-bandwidth embedded networking.
## Technical Specifications
• Form Factor: IEEE 1386 64-Bit Compact PCI PMC Mezzanine Card
• Chipset: Intel Gigabit Ethernet
• Ports: Dual, 1000 Base-X fiber (LC connectors)
• Port Throughput: 245 MB/sec per port
• Total Throughput: 490+ MB/sec (3.92 Gb)
• Maximum Frame Rate: 1,000,000 frames/sec
• Sustained Raw Throughput: 242 MB/sec (64/66 PCI) or 118 MB/sec (32/33 PCI)
• PCI Bus Interface: 64-bit, 133/100/66 MHz, PCI 2.2 Compliant
• Power Supply: 1.8 V and 3.3 V design
• IEEE Compliance: 802.3 compliant
## Key Features
• Full-duplex wire-speed operation on both ports
• Bus-master DMA engine with maximum PCI bandwidth utilization
• Hardware TCP/UDP/IP checksum offload
• VLAN and priority queuing support
• Advanced silicon-based packet filtering
• Jumbo frame capability
• Low CPU management overhead
## Typical Applications
• Digital video transmission and digital imaging
• VoIP and packet voice systems
• Protocol and media converters
• Network switches and edge routers
• Security monitoring and network analysis
• Test equipment platforms
• Military and medical embedded systems
## Compatibility & Integration
Supported across VxWorks (5.4, 5.5, Tornado II), Linux kernels 2.2–2.4 (including embedded variants), Windows 2000, and Windows XP Embedded. OEM Developer Kit includes sample code, utilities, integration guides, and release notes.
