Abaco Systems / Ramix RM676RCTX Dual Port GigE Controller

The Abaco Systems / Ramix RM676RCTX is a dual-port Gigabit Ethernet controller for embedded systems requiring high-speed network connectivity and real-time determinism. This PCI/PCI-X card delivers two independent 10/100/1000BaseTX ports with RJ-45 connectors, each equipped with dedicated DMA engines and 64 kB deep FIFO buffers to sustain full-bandwidth operation with minimal host overhead. Full-duplex operation on each channel enables simultaneous bidirectional traffic without contention.

Technical Specifications

• Interface: PCI/PCI-X, 64-bit, 3 V and 5 V signaling


• PCI Bus Speed: 33/66 MHz (PCI); 64/66 MHz or 64-bit/133 MHz (PCI-X capable)


• Ethernet Ports: 2 × 10/100/1000BaseTX (RJ-45)


• DMA Engine: Per-port with 64 kB FIFO buffers


• Power Consumption: 6 W total (3.3 V @ 0.9 A; 5 V @ 0.6 A)


• Operating Temperature: 0 to +60 °C


• Storage Temperature: −40 to +85 °C


• Operating Humidity: 5% to 95% non-condensing


• MTBF: 245,000 hours (MIL-HDBK-217F, 25 °C, naval sheltered)


• Form Factor: Single-slot PMC; PCI edge card adapter available


• MAC Controller: Intel 82546


• RoHS Compliant: Yes

Key Features

• Hardware TCP checksum offloading reduces host processing load


• Packet filtering with checksum error detection


• SNMP and RMON statistic counters for network monitoring


• Address filtering: 16 exact-match entries (unicast/multicast) and 4096-bit hash filter for multicast frames


• Promiscuous unicast and multicast transfer modes


• Jumbo frame support


• Direct board-to-board cabling via crossover cable for dedicated 1000 Mbit/s duplex link


• Optional conformal coating (acrylic or polyurethane)


• Optional Solaris OBP and PXE boot support

Compatibility & Integration Native drivers provided for Windows, Linux, VxWorks, Solaris, and LynxOS. Two RM676RCTX boards can be directly cabled for point-to-point gigabit data paths. Note: This product is in Restricted Production Phase (RPP).