Znyx Networks ZX370 SA0109-A2 4-Port Ethernet cPCI Card 64-Bit 66MHz Intel 21143

Znyx Networks ZX370 SA0109-A2 4-Port Ethernet cPCI Card 64-Bit 66MHz Intel 21143

The Znyx Networks ZX370 is a Short Form Compact PCI (cPCI) quad-port 100Mbps Ethernet network interface card designed for embedded computing and telecommunications platforms. It uses a 64-bit, 66MHz Compact PCI bus interface and carries four RJ-45 ports for 100Base-TX connectivity. The board assembly is marked SA0109-A2 and is built around Intel 21143 Ethernet controllers — a widely supported chipset in the embedded Linux and RTOS ecosystem of the late 1990s and early 2000s.

Specifications & What's Included

• Manufacturer: Znyx Networks
• Model / Series: ZX370
• Assembly Part Number: SA0109-A2
• Bus Interface: Compact PCI (cPCI), 64-bit, 66 MHz
• Form Factor: Short Form Compact PCI Card
• Number of Ethernet Ports: 4 × RJ-45
• Port Speed: 100 Mbps (100Base-TX)
• Network Chipset: Intel 21143 (DEC Tulip architecture) — visible on PCB
• Additional Logic: Altera MAX FPGA (visible on PCB, Image 3)
• LED Indicators: int_ft, ext_ft, operational, power — labeled on bracket (Image 4)
• Card only — no cables or accessories included

Applications

The ZX370 series was designed for Compact PCI (cPCI) chassis used in embedded networking, telecommunications, and industrial computing platforms. cPCI is a ruggedized, hot-swap-capable bus standard based on the PCI electrical specification but using the Eurocard mechanical form factor — built for 24/7 carrier-grade and industrial environments where standard desktop PCI cards cannot go. Cards like the ZX370 were deployed in network appliances, VOIP gateways, telecom shelf systems, and embedded Linux servers that required multiple dedicated Ethernet interfaces in a single card slot. The Intel 21143 chipset (derived from the original DEC Tulip 21140) was the dominant 100Base-TX controller of the late 1990s and enjoyed broad driver support across Linux, BSD, and embedded RTOS platforms, making the ZX370 a practical choice for system integrators of that era. These cards remain sought after for maintaining legacy cPCI-based telecom and industrial systems, as well as for embedded networking research and hobbyist cPCI platforms.