INTRODUCTION
As a leading manufacturer of smart function modules, NAI offers over 100 different modules that cover a wide range of I/O, measurement and simulation, communications, Ethernet switch, and SBC functions. Our EM2 Ethernet Network Interface Card (NIC) integrates the Intel® E610 Ethernet Controller with supporting PHY, magnetics, and interface circuitry to provide dedicated dual-port gigabit (100/1000Base-T) Ethernet network controller functions. This user manual is designed to help you get the most out of our EM2 smart function module.
For a brief description of the module and complete list of specifications, click here for the EM2 data sheet.
EM2 Overview
NAI’s EM2 module offers a dedicated set of features designed to enhance a system’s Ethernet communication capabilities, including:
Integrated Intel® E610 Ethernet Controller: The EM2 module seamlessly integrates the Intel® E610 Ethernet Controller along with an integrated PHY, supporting magnetics, and interface circuitry. This integration empowers the module to deliver robust dual-port gigabit (100/1000Base-T) Ethernet network controller functions.
Integrated PHY with Auto MDI/MDI-X: The EM2 module features an on-chip PHY integrated directly into the Intel® E610 Ethernet Controller, eliminating the need for external PHY components. Auto MDI/MDI-X support allows each port to automatically detect and adapt to either straight-through or crossover cable connections, simplifying installation and reducing the risk of cabling errors in the field.
Flexible Integration: The EM2 module is designed for easy integration and configuration, making it a valuable addition to NAI SBCs or multifunction I/O boards that support external module PCIe communication interface ports. Its flexibility allows you to tailor your system to meet specific requirements.
Direct Control via PCIe Interface: Managing the EM2 module is straightforward, with direct SBC/processor control facilitated through the PCIe x1 interface. The module seamlessly interfaces with standard/native OS operations and drivers — no custom software required — ensuring efficient and reliable performance in Ethernet communication tasks.
APPENDIX: PINOUT DETAILS
Pin-out details (for reference) are shown below, with respect to DATAIO. Additional information on pin-outs can be found in the Motherboard Operational Manuals
| Module Signal (Ref Only) | 44-Pin I/O | 50-Pin I/O (Mod Slot 1-J3) | 50-Pin I/O (Mod Slot 2-J4) | 50-Pin I/O (Mod Slot 3-J3) | 50-Pin I/O (Mod Slot 3-J4) | Ethernet NIC (EM2) |
| DATIO1 | 2 | 10 | 1 | 2 | EM1-ETH2-TP0+ | |
| DATIO2 | 24 | 35 | 26 | 27 | EM1-ETH2-TP0- | |
| DATIO3 | 3 | 11 | 2 | 3 | EM1-ETH2-TP1+ | |
| DATIO4 | 25 | 36 | 27 | 28 | EM1-ETH2-TP1- | |
| DATIO5 | 5 | 13 | 4 | 5 | EM1-ETH2-TP2+ | |
| DATIO6 | 27 | 38 | 29 | 30 | EM1-ETH2-TP2- | |
| DATIO7 | 7 | 14 | 5 | 6 | EM1-ETH2-TP3+ | |
| DATIO8 | 29 | 39 | 30 | 31 | EM1-ETH2-TP3- | |
| DATIO9 | 8 | 15 | 6 | 7 | EM1-ETH1-TP0+ | |
| DATIO10 | 30 | 40 | 31 | 32 | EM1-ETH1-TP0- | |
| DATIO11 | 10 | 17 | 8 | 9 | EM1-ETH1-TP1+ | |
| DATIO12 | 32 | 42 | 33 | 34 | EM1-ETH1-TP1- | |
| DATIO13 | 12 | 18 | 9 | 17 | EM1-ETH1-TP2+ | |
| DATIO14 | 34 | 43 | 34 | 42 | EM1-ETH1-TP2- | |
| DATIO15 | 13 | 19 | 10 | 18 | EM1-ETH1-TP3+ | |
| DATIO16 | 35 | 44 | 35 | 43 | EM1-ETH1-TP3- | |
| DATIO17 | 15 | 21 | 12 | 20 | Shield | |
| DATIO18 | 37 | 46 | 37 | 45 | ||
| DATIO19 | 17 | 22 | 13 | 21 | ||
| DATIO20 | 39 | 47 | 38 | 46 | ||
| DATIO21 | 18 | 23 | 14 | 22 | ||
| DATIO22 | 40 | 48 | 39 | 47 | ||
| DATIO23 | 20 | 25 | 16 | 24 | ||
| DATIO24 | 42 | 50 | 41 | 49 | ||
| DATIO25 | 4 | 12 | 3 | 4 | ||
| DATIO26 | 26 | 37 | 28 | 29 | ||
| DATIO27 | 9 | 16 | 7 | 8 | ||
| DATIO28 | 31 | 41 | 32 | 33 | ||
| DATIO29 | 14 | 20 | 11 | 19 | ||
| DATIO30 | 36 | 45 | 36 | 44 | ||
| DATIO31 | 19 | 24 | 15 | 23 | ||
| DATIO32 | 41 | 49 | 40 | 48 | ||
| DATIO33 | 6 | |||||
| DATIO34 | 28 | |||||
| DATIO35 | 11 | |||||
| DATIO36 | 33 | |||||
| DATIO37 | 16 | |||||
| DATIO38 | 38 | |||||
| DATIO39 | 21 | |||||
| DATIO40 | 43 | |||||
| N/A |
DOCS.NAII REVISIONS
| Revision Date | Description |
|---|---|
| 2026-08-31 | Initial release of data sheet. |
NAI Cares
North Atlantic Industries (NAI) is a leading independent supplier of Embedded I/O Boards, Single Board Computers, Rugged Power Supplies, Embedded Systems and Motion Simulation and Measurement Instruments for the Military, Aerospace and Industrial Industries. We accelerate our clients’ time-to-mission with a unique approach based on a Configurable Open Systems Architecture™ (COSA®) that delivers the best of both worlds: custom solutions from standard COTS components.
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