The MESA 4I71 is a stackable PC/104‑plus card that combines a 100BaseT Ethernet MAC with an 8‑port wire‑speed switch.
The MESA 4I71 is a stackable PC/104‑plus card that integrates a 100BaseT Ethernet MAC and an eight‑port switch, providing auto‑negotiation, auto MDX and eliminating the need for crossover cables. It features a Micrel Semiconductor 8842P MAC, three link‑status LEDs per port, and operates on +5 V only, with a two‑year warranty.
Ordering options include commercial and industrial temperature‑range versions, as well as a switch‑only model. The card includes a PC/104 feed‑through connector for easy stacking and a socketed serial EEPROM for custom configuration.
| Form factor | PC/104‑plus card |
|---|---|
| Ethernet MAC | Micrel Semiconductor 8842P |
| Number of ports | 8 |
| Port speed | 100BaseT |
| Auto‑negotiation | Supported |
| Auto MDX | Supported |
| Link status LEDs per port | 3 |
| Power supply | +5 V only |
| Temperature range | Commercial and industrial |
| Warranty | 2 years |
It includes a PC/104 feed‑through connector for stacking cards.
Each port has three link status LEDs.
Yes, a switch‑only version is offered for applications that do not need an additional MAC.