General
Packet buffer	512 kbit
Auto-negotiation

The Moxa EOM-104 is a compact, embedded managed Ethernet switch module with four ports, specifically developed for device manufacturers who wish to add reliable Ethernet communication to their products. It is particularly suitable for industrial automation, intelligent control systems, or edge devices, where space and energy efficiency are critical. The module is extremely space-saving, measuring two-thirds the size of a business card, and enables easy integration into existing hardware. Due to its low power consumption, it is suitable for applications where energy efficiency and thermal load are important.

Applications

The EOM-104 is used in industrial environments where a robust and reliable network connection is required. It is ideal for OEM applications, where manufacturers want to equip their devices with Ethernet functionality without needing additional external switches. Possible applications range from machine controls and intelligent sensors to edge computing solutions that require direct network integration.

Features and Specifications in Detail

The module supports 10/100BaseT(X) for copper connections and 100BaseFX for fiber optic connections, making it flexible for use in various network environments. The functions Auto-Negotiation and Flow Control ensure optimal adaptation to the respective network environment and prevent data loss. Support for IEEE 802.3x enables efficient data flow control. For traffic prioritization, QoS (Quality of Service) is implemented via IEEE 802.1p, which is particularly important for time-critical applications.

Technology Explained Simply

The EOM-104 offers a redundancy function called Turbo Ring, enabling network recovery in less than 20 ms. This is crucial for applications where communication interruption is not tolerable. As an alternative, the standards STP (Spanning Tree Protocol) and RSTP (Rapid Spanning Tree Protocol) are available, which also enable redundant network paths. Network monitoring is performed via SNMP, SMTP, and Syslog, allowing administrators to monitor the switch status and log errors. Support for MIBs (Management Information Bases) and standard protocols such as HTTP, Telnet, and TFTP facilitates integration into existing network infrastructures.

Compatibility and Accessories

The module is designed for use in OEM products and can work with various network protocols and standards. It supports common Ethernet standardizations such as IEEE 802.3, IEEE 802.3u, and IEEE 802.1D-2004. The MAC table with 1K entries and a packet buffer of 512 kbit ensure efficient processing of network data. Additional pins for GPIO (General Purpose Input/Output) and Turbo Ring Enable offer expansion options for specific applications.

Mounting and Installation

Installation is performed by direct integration into the hardware of the end device. Due to its compact design and small dimensions, placement in tight device housings is possible. The operating temperature ranges from -40 °C to 75 °C, enabling use in extreme environments. Power supply is provided via the integrated circuit of the end device, with power consumption described as low.

Operational Advantages

Using the EOM-104 enables cost-efficient and reliable Ethernet connectivity for OEM products. The fast network recovery via Turbo Ring ensures high availability, especially in critical applications. Support for standard protocols and MIBs simplifies network management and monitoring. The combination of compact design, low power consumption, and industrial-grade construction makes the module a robust solution for industrial use.