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EOM-G103 Series

IEC 62439-3 3-port full Gigabit embedded managed redundancy modules

moxa-eom-g103-series-image-1-(1).jpg | Moxa

Features and Benefits

  • IEC 62439-3 Clause 4 (PRP) and Clause 5 (HSR) compliant
  • 3 SGMII pinouts reserved for PRP/HSR (LAN A/LAN B/Inter Link) and an extra 1 SGMII reserved for Ethernet console connection


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The EOM-G103 Series is designed for device manufacturers that want to embed and integrate the advanced IEC 62439-3 supported modules with minimum effort into their products to enhance performance and reliability in certain mission-critical applications.

IEC 62439-3 Clause 4 (PRP) and IEC 62439-3 Clause 5 (HSR) are the standardized redundancy protocols for industrial automation networks where zero recovery time is needed. PRP and HSR are suitable for electrical substation automation and other mission-critical applications that cannot tolerate any system downtime.

The EOM-G103 Series is compliant with the IEC 62439-3 standard and provides an easy and cost-effective integrated solution for adding a redundancy module to a non-IEC 62439-3 compliant product. The modules support two IEC 62439-3 Ethernet ports for constructing PRP or HSR networks: SGMII (MAC mode)/SerDes (1000BaseX). It also includes one standard Ethernet port SGMII (MAC mode)/SerDes (1000BaseX) for connecting with standard IEEE 802.3 Ethernet devices. Additionally, the EOM-G103-PHR-PTP Series provides an extra SGMII (MAC mode)/SerDes (1000BaseX) for building up a local access Ethernet console port to easily maintain, control, and manage devices at the local site.

Additional Features and Benefits

  • PRP (Parallel Redundancy Protocol): Transmit or receive two independent active paths to/from different LANs simultaneously in a network that needs zero recovery time

  • HSR (High-availability Seamless Redundancy): Every frame is duplicated and then transmitted in both directions of the HSR ring to deliver zero switchover time

  • Hardware-based IEEE 1588v2 PTP (Precision Time Protocol) end-to-end one-step transparent clock for precise time synchronization of networks

  • Configurable via CLI

  • Standards

    IEEE 802.3ab for 1000BaseT(X)
    IEEE 802.3u for 100BaseT(X) and 100BaseFX
    IEEE 802.3z for 1000BaseSX/LX/LHX/ZX

  • Ethernet Interface

    3, SGMII (MAC mode) / SerDes (1000BaseX) (PRP/HSR LAN A/LAN B/INTERLINK)

  • Connector

    1 connector with 2 x 40 pins, and 1 connector with 2 x 10 pins

  • GPIO

    3 x Programmable I/O pins

  • Redundancy Protocols

    HSR, PRP

  • Console Port

    Ethernet console (SGMII (MAC mode) / SerDes (1000BaseX))

  • Input Current

    0.49 A @ 3.3 VDC

  • Dimensions

    80 x 1.6 x 65 mm (3.15 x 0.06 x 2.56 in)

  • Weight

    28.6 g (0.06 lb)

  • Operating Temperature

    -40 to 60°C (-40 to 140°F)

  • Storage Temperature (package included)

    -40 to 85°C (-40 to 185°F)

  • Ambient Relative Humidity

    5 to 95% (non-condensing)

  • EMC

    EN 55032 Class A

  • EMI

    CISPR 32, FCC Part 15B Class A

Software, Firmware, and Drivers


Name Type Checksum Version Operating System Release Date
Firmware for EOM-G103 Series
6.2 MB
Mar 08, 2017 Mar 08, 2017 Release notes

Support Documents

Name Type Version Release Date
Datasheet for EOM-G103 Series
618.9 KB
Datasheet v1.1 Apr 27, 2022 Apr 27, 2022
QIG for EOM-G103 Series
258.9 KB
QIG v1.1 Apr 29, 2021 Apr 29, 2021
Tech Note: Recommended Procedure for STP Cable Grounding on Moxa's Industrial Ethernet Switches
558.3 KB
Tech Note v1.0 Feb 12, 2019 Feb 12, 2019
2D CAD for EOM-G103-PTP
165.8 KB
2D CAD Jan 19, 2018 Jan 19, 2018
Manual for EOM-G103 Series (EOM-G103-PHR-PTP hardware)
1.2 MB
Manual v2.0 Mar 19, 2017 Mar 19, 2017
Moxa PRP/HSR Redundancy Box User's Manual
1.3 MB
Manual v1.0 Mar 10, 2015 Mar 10, 2015

Available Models (2)

Show Images
moxa-eom-g103-phr-ptp-image.jpg | MoxaEOM-G103-PHR-PTPmoxa-eom-g103-phr-ptp-st-image.jpg | MoxaEOM-G103-PHR-PTP-ST
Operating Temp.-40 to 60°C-40 to 60°C
Input Voltage3.3 V3.3 V
EOM-G103-PHR-PTP managed redundancy module11
Evaluation board for testing and application development1
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EOM-G103 Series


moxa-eom-g103-phr-ptp-image.jpg | Moxa

Buy online from our distributors

EOM-G103 Series


moxa-eom-g103-phr-ptp-st-image.jpg | Moxa

Buy online from our distributors