Moxa

EOM-104 Series

4-port embedded managed Ethernet switch modules

EOM-104 Series

Features and Benefits

  • 10/100BaseT(X) and 100BaseFX Ethernet interfaces
  • Turbo Ring and RSTP/STP for network redundancy
  • SNMP and email alerts for event trapping and notifications
  • Two-thirds the size of a business card
  • Low power consumption
  • -40 to 75°C operating temperature range

Certifications

  • CE
  • FCC

Introduction

The EOM-104 Series is designed for device manufacturers who would like to embed Ethernet modules in their products to enhance performance and reliability. The EOM-104 Series provides an easy and cost-effective integrated solution for adding an Ethernet switch module to an existing product. The modules support 10/100M Ethernet transmission and come with Turbo Ring’s fast recovery time of under 20 ms. The EOM-104 Series provides a rich set of peripherals, such as Turbo Ring Enable and GPIO programming pins, and is an ideal solution for embedded Ethernet applications.

Models in this series (6)

EOM-104EOM-104 20PCSEOM-104 Evaluation KitEOM-104-FO
10/100BaseT(X) Ports4442
100BaseFX Ports2
20 pcs per package
Evaluation Kit1
Operating Temp.-40 to 75°C-40 to 75°C-40 to 75°C-40 to 75°C
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EOM-104-FO 20PCSEOM-104-FO Evaluation Kit
10/100BaseT(X) Ports22
100BaseFX Ports22
20 pcs per package
Evaluation Kit1
Operating Temp.-40 to 75°C-40 to 75°C
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Specifications

Shown for EOM-104. Per-model differences are listed in the selection grid above.

Ethernet Interface

Standards
IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X) and 100BaseFX IEEE 802.3x for flow control IEEE 802.1p for Class of Service IEEE 802.1D-2004 for Spanning Tree Protocol IEEE 802.1w for Rapid Spanning Tree Protocol
10/100BaseT(X) Port
4
Connector
1 connector with 2 x 20 pins, 2 connectors with 1 x 9 pins, and 1 connector with 2 x 2 pins
GPIO
4 x Programmable I/O pins

Ethernet Software Features

Protocols
BOOTP, DHCP Client, HTTP, RARP, RMON, SMTP, SNMPv1/v2c/v3, Syslog, Telnet, TFTP
MIB
Bridge MIB, Ethernet-like MIB, MIB-II, P-BRIDGE MIB, RMON MIB Groups 1, 2, 3, 9, RSTP MIB

Switch Properties

MAC Table Size
1 K
Packet Buffer Size
512 kbits

Serial Interface

Console Port
RS-232 (TxD, RxD, DTR, DSR)

Power Parameters

Input Current
0.48 A @ 3.3 VDC

Physical Characteristics

Dimensions
54 x 60 x 8.25 mm (2.13 x 2.36 x 0.32 in)
Weight
21 g (0.046 lb)

Environmental Limits

Operating Temperature
-40 to 75°C (-40 to 167°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/24
EMI
CISPR 32, FCC Part 15B Class A

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Resources

NameTypeVersionDate
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Utility for EOM-104 Series (EDS Configuration Tool)1.6 MBUtilityv5.3Jan 28, 2019 Jan 28, 2019 Release notes
Firmware for EOM-104 Series (Fiber models)925.7 KBFirmwarev1.2Sep 09, 2010 Sep 09, 2010 Release notes
SNMP MIB file for EOM-104 Series (fiber model)48.2 KBSoftware Packagev1.2Sep 09, 2010 Sep 09, 2010 Release notes
Firmware for EOM-104 Series926.8 KBFirmwarev1.2Sep 09, 2010 Sep 09, 2010 Release notes
SNMP MIB file for EOM-104 Series48.1 KBSoftware Packagev1.2Sep 09, 2010 Sep 09, 2010 Release notes
Datasheet for EOM-104 Series593.4 KBDatasheetv1.2Aug 27, 2026
Declaration of Conformity (EU/UK) for EOM-104 Series298.7 KBDeclarationv1.0Jun 03, 2024
Industrial Protocol Users Guide11.9 MBManualv6.3Sep 12, 2022
QIG for EOM-104 Series289.7 KBQIGv4.2May 09, 2021
Datasheet for EOM-104 Series605.6 KBDatasheetv1.1Aug 27, 2019
Manual for EOM-104 Series (hardware)1.1 MBManualv3.1Jul 10, 2019
Tech Note: Recommended Procedure for STP Cable Grounding on Moxa's Industrial Ethernet Switches558.3 KBTech Notev1.0Feb 12, 2019
2D CAD for EOM-104 Evaluation Kit47.4 KB2D CADJan 19, 2018
2D CAD for EOM-10423.9 KB2D CADJan 19, 2018
2D CAD for EOM-104-FO Evaluation Kit69.8 KB2D CADJan 19, 2018
2D CAD for EOM-104/EOM-104-FO PCBA2.7 MB2D CADJan 19, 2018
Manual for EOM-104 Series2.3 MBManualv4.0Mar 20, 2017

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