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EDR-G903 Series

3 GbE copper/SFP combo port industrial secure routers with dual WAN redundancy

moxa-edr-g903-series-image-(1).jpg | Moxa
moxa-edr-g903-series-image-1-(1).jpg | Moxa
moxa-edr-g903-series-image-2-(1).jpg | Moxa

Features and Benefits

  • Firewall/NAT/VPN/Router all-in-one
  • Secure remote access tunnel with VPN
  • Stateful firewall protects critical assets
  • Inspect industrial protocols with PacketGuard technology
  • Easy network setup with Network Address Translation (NAT)
  • Dual WAN redundant interfaces through public networks
  • Support for VLANs in different interfaces
  • -40 to 75°C operating temperature range (-T model)

Certifications

  • moxa-iec61850-3-ieee1613-black-certification-logo-image.png | Moxa
  • moxa-ul-listed-certification-logo-image.png | Moxa
  • moxa-fcc-certification-logo-image.png | Moxa
  • moxa-ce-certification-logo-image.png | Moxa
 
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Introduction

The EDR-G903 is a high-performance, industrial VPN server with a firewall/NAT all-in-one secure router. It is designed for Ethernet-based security applications on critical remote control or monitoring networks, and it provides an Electronic Security Perimeter for the protection of critical cyber assets such as pumping stations, DCS, PLC systems on oil rigs, and water treatment systems. The EDR-G903 Series includes the following cybersecurity features:

  • Virtual Private Network (VPN): VPNs are designed to provide users with secure communication links when accessing a private network from the public Internet. They use IPsec (IP Security) server or client mode for encryption and authentication of all IP packets at the network layer to ensure confidentiality and sender authentication.

  • Firewall: Controls network traffic between different trust zones. Network Address Translation (NAT), which shields the internal LAN from unauthorized activity from outside hosts.

The EDR-G903’s Quick Automation Profile function supports most common fieldbus protocols, including EtherCAT, EtherNet/IP, FOUNDATION Fieldbus, Modbus TCP, and PROFINET. Users can easily create a secure Ethernet Fieldbus network from a user-friendly web UI with a single click. In addition, Moxa’s PacketGuard technology (Deep Packet Inspection) helps to filter Modbus TCP commands at OSI layer 7. The wide-temperature range models that are available operate reliably in hazardous, -40 to 75°C environments.

  • Alarm Contact Channels

    1 relay output with current carrying capacity of 1 A @ 24 VDC

  • Buttons

    Reset button

  • Digital Input Channels

    +13 to +30 V for state 1
    -30 to +3 V for state 0
    Max. input current: 8 mA

  • Relay Channels

    1

  • Combo Ports (10/100/1000BaseT(X) or 100/1000BaseSFP+)

    3

  • Standards

    IEEE 802.1Q for VLAN Tagging
    IEEE 802.3 for 10BaseT
    IEEE 802.3ab for 1000BaseT(X)
    IEEE 802.3u for 100BaseT(X) and 100BaseFX
    IEEE 802.3x for flow control
    IEEE 802.3z for 1000BaseSX/LX/LHX/ZX

  • WAN Ports, RJ45/Fiber Combo Port

    1

  • DMZ Ports, RJ45/Fiber Combo Port

    1

  • LAN Ports, RJ45/Fiber Combo Port

    1

  • Management

    Back Pressure Flow Control, DDNS, DHCP Server/Client, HTTP, LLDP, QoS/CoS/ToS, SMTP, SNMPv1/v2c/v3, Telnet, TFTP

  • Routing

    Throughput: 40,000 packets per second (max. 500 Mbps)

  • Routing Redundancy

    VRRP

  • Security

    HTTPS/SSL, SSH, IPsec, OpenVPN (client and server), UDP and TCP Tunnel mode (routing) and TAP mode (bridge), L2TP (server), RADIUS

  • Time Management

    NTP Server/Client, SNTP

  • Unicast Routing

    OSPF, RIPV1/V2, Static Route

  • Max. No. of VLANs

    15

  • Technology

    ARP-Flood, FIN Scan, ICMP-Death, NEWWithout-SYN Scan, NMAP-ID Scan, NMAP-Xmas Scan, Null Scan, SYN/FIN Scan, SYN/RST Scan, SYN-Flood, Xmas Scan

  • Deep Packet Inspection

    Modbus TCP
    Modbus UDP

  • Filter

    DDoS, Ethernet protocols, ICMP, IP address, MAC address, Ports

  • Quick Automation Profiles

    DNP, EtherCAT, EtherNet/IP, FOUNDATION Fieldbus, FTP, HTTP, IEC 60870-104, IPsec, L2TP, LonWorks, Modbus TCP, PPTP, PROFINET, RADIUS, SSH, Telnet

  • Stateful Inspection

    Router firewall
    Transparent (bridge) firewall

  • Throughput

    Max. 40000 packets per second (max. 500 Mbps)

  • Authentication

    MD5 and SHA (SHA-256)
    RSA (key size: 1024-bit, 2048-bit)
    X.509 v3 certificate

  • Concurrent VPN Tunnels

    Max. 100 IPsec VPN tunnels

  • Encryption

    3DES, AES-128, AES-192, AES-256, DES

  • Protocols

    IPsec, L2TP (server), PPTP (client)

  • Throughput

    Max. 150 Mbps (Conditions: AES-256, SHA-256)

  • Features

    1-to-1, N-to-1, Port forwarding

  • Authentication

    User password by MD5 and SHA1

  • Concurrent VPN Tunnels

    Client Mode: max. 2 external servers
    Server Mode: max. 5 external clients

  • Encryption

    AES-128/192/256 CBC, Blowfish CBC, DES CBC, DES-EDE3 CBC

  • Protocols

    OpenVPN (client and server), UDP, and TCP, Tunnel mode (routing) and TAP mode (bridge), Tunnel mode (routing)

  • Event Type

    Firewall event, System event, VPN event

  • Media

    Local storage, SNMP Trap, Syslog server

  • Console Port

    Web/Telnet/SSH/CLI, and RS-232 serial console

  • Connection

    Removable terminal block

  • Input Voltage

    12/24/48 VDC

  • Overload Current Protection

    Supported

  • Reverse Polarity Protection

    Supported

  • Housing

    Metal

  • Dimensions

    51.2 x 152 x 131.1 mm (2.02 x 5.98 x 5.16 in)

  • Weight

    1250 g (2.76 lb)

  • Installation

    DIN-rail mounting

  • Operating Temperature

    EDR-G903: 0 to 60°C (32 to 140°F)
    EDR-G903-T: -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)

  • Freefall

    IEC 60068-2-32

  • EMC

    EN 55032/24

  • EMI

    CISPR 32, FCC Part 15B Class A

  • EMS

    IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
    IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
    IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV
    IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
    IEC 61000-4-6 CS: 10 V
    IEC 61000-4-8 PFMF

  • Safety

    UL 508

  • Shock

    IEC 60068-2-27

  • Vibration

    IEC 60068-2-6

  • Power Substation

    IEC 61850-3

  • Time

    903,311 hrs

  • Standards

    Telcordia (Bellcore), GB

Software, Firmware, and Drivers

FILTER

All Firmware Software Package
Name Type Checksum Version Operating System Release Date
Software Package for MXview One Series (Windows version)
238.9 MB 		Software Package
SHA-512
v1.6.0
  • Windows 10
  • Windows 11
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
 Jul 31, 2025 Jul 31, 2025 Release notes
Software Package for MXview One Series (Linux version)
336.8 MB 		Software Package
SHA-512
v1.6.0
  • Ubuntu 18.04
  • Ubuntu 20.04
  • Ubuntu 22.04
 Jul 31, 2025 Jul 31, 2025 Release notes
Firmware for EDR-G903 Series
26.6 MB 		Firmware
SHA-512
v5.7.27
Dec 31, 2024 Dec 31, 2024 Release notes
Firmware for EDR-G903 Series
26.0 MB 		Firmware
SHA-512
v5.7
Dec 28, 2021 Dec 28, 2021 Release notes
MIB file for EDR-G903 Series
155.7 KB 		Software Package
SHA-512
v5.0
Feb 01, 2019 Feb 01, 2019 Release notes

Support Documents

FILTER

All 2D CAD Datasheet Declaration Manual QIG Tech Note
Name Type Version Release Date
Datasheet for EDR-G903 Series
1.2 MB 		Datasheet v1.3 Jun 27, 2025 Jun 27, 2025
Declaration of Conformity for EDR-G903 Series
299.3 KB 		Declaration v1.0 Jun 04, 2024 Jun 04, 2024
QIG for EDR-G902/EDR-G903 Series
1.6 MB 		QIG v6.1 May 25, 2021 May 25, 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
Manual for EDR-G903 Series
17.0 MB 		Manual v4.0 Apr 13, 2018 Apr 13, 2018
2D CAD for EDR-G903
409.0 KB 		2D CAD Jan 19, 2018 Jan 19, 2018
Moxa Industrial Secure Router CLI Command Set User's Manual
510.4 KB 		Manual v1.0 Dec 16, 2014 Dec 16, 2014

Related Content

FILTER

All Case Study Solution Brochure Spotlight Technology Guide White Paper

Available Models (2)

Show Images
Compare
moxa-edr-g903-image.jpg | MoxaEDR-G903
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moxa-edr-g903-t-image.jpg | MoxaEDR-G903-T
10/100/1000BaseT(X)
RJ45 Connector,
100/1000Base SFP Slot Combo WAN Port		11
10/100/1000BaseT(X)
RJ45 Connector, 100/1000Base SFP Slot Combo WAN/DMZ Port		11
Firewall/NAT/VPN✓✓
Operating Temp.0 to 60°C-40 to 75°C
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Defend Your Industrial Networks

Moxa provides OT-IT integrated security to enhance your network defense on two fronts: the first is to reinforce your network infrastructure and the other is to protect your critical assets and networks.

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Details

File Name: Firmware for Nport 6000 Series

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