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TN-4900 Series

EN 50155 Gigabit security routers

Features and Benefits

  • 8 Gigabit ports and up to 12 PoE ports
  • IEC 61375 ETBN functionality (ETBN models)
  • Dual bypass relay
  • Supports regular and inner push-pull M12 connectors
  • Isolated power input range from 24 to 110 VDC
  • Complies with all EN 50155 mandatory test items This product is suitable for rolling stock railway applications, as defined by the EN 50155 standard. For a more detailed statement, click here: www.moxa.com/doc/specs/EN_50155_Compliance.pdf
  • IEC 62443-4-2 Security Level 2 certified
  • -40 to 70°C operating temperature range
Certifications
Overview
Specifications
Resources
Models
Contact Sales

Introduction

The ToughNet TN-4900 Series, designed for rolling stock Ethernet networks, is a set of high-performance M12 routers with 8 Gigabit ports and up to four bypass relay ports. These routers feature firewall, ETBN, and routing functionality to facilitate the deployment of applications across networks. The TN-4900 Series routers use M12 and other circular connectors to ensure tight, robust connections that guarantee reliability against environmental disturbances, such as vibration and shock.

The TN-4900 Series supports a wide power input range of 24 to 110 VDC and can operate in temperatures of -40 to 70°C for extended periods of time. Furthermore, these routers are compliant with the mandatory requirements of EN 50155, making them suitable for a variety of industrial applications.

Additional Features and Benefits

  • IEC 61375-2-3, 61375-2-5–compliant ETBN

  • Routing functionality to divide a large network into hierarchical subnets and allow data and information to communicate across networks

  • NAT makes IP management easier as end devices in different carriages can use the same IP addresses

  • Leading EN 50155 Ethernet router for rolling stock applications

  • Turbo Ring and RSTP/STP for network redundancy

  • Wall mounting installation

  • Line-swap fast recovery

  • Automatic recovery of connected device’s IP addresses

  • LLDP for automatic topology discovery in network management software

  • Configurable by web browser, Telnet/serial console, and CLI Windows utility

  • IPS/ IDS threat detection and protection are supported on models with firewall function (license is required)

IEC 62443-4-2 Security Level 2 Certified

TN-4900 Series models with a firewall (HW Rev. 3.0) are IEC 62443-4-2 Security Level 2 certified (https://certificates.iecee.org/#/deliverables/CERT/1672424/view), enhancing cybersecurity in industrial networks.

MX-ROS Addresses Growing Cybersecurity Threats

Moxa’s MX-ROS is a software platform for industrial security routers and firewalls. The platform supports robust security and user-friendly operation of secure routers through simplified web and CLI interfaces. MX-ROS devices offer a wealth of the latest cross-industry Operational Technology (OT) network management features with each release to safeguard your hardware and software.

  • 10/100BaseT(X) Ports (M12 D-coded 4-pin female connector)

    TN-4908-WV-CT-T: 8
    TN-4908-ETBN-4TXBP-WV-CT-T: 4
    TN-4908-ETBN-F-4TXBP-WV-CT-T: 4
    TN-4908-4GTX-WV-CT-T: 4
    TN-4908-ETBN-4GTX-4GTXBP-WV-CT-T: 4
    TN-4908-ETBN-F-4GTX-4GTXBP-WV-CT-T: 4
    TN-4916-4GTX-WV-CT-T: 12
    TN-4916-ETBN-4GTXBP-WV-CT-T: 12
    TN-4916-ETBN-F-4GTXBP-WV-CT-T: 12

  • 10/100BaseT(X) Ports (M12 D-coded 4-pin female connector with bypass relay)

    4TXBP Models: 4

  • PoE Ports (10/100BaseT(X), M12 D-coded 4-pin female connector)

    8PoE Models: 8
    12PoE Models: 12

  • PoE Ports (100/1000BaseT(X), M12 X-coded 8-pin female connector)

    4GPoE Models: 4

  • 10/100/1000BaseT(X) Ports (M12 X-coded 8-pin female connector)

    4GTX Models: 4
    8GTX Models: 8

  • 10/100/1000BaseT(X) Ports (M12 X-coded 8-pin female connector with bypass relay)

    4GTXBP Models: 4

  • Standards

    IEEE 802.1Q for VLAN Tagging
    IEEE 802.1w for Rapid Spanning Tree Protocol
    IEEE 802.3af/at for PoE/PoE+ output
    IEEE 802.3ab for 1000BaseT(X)
    IEEE 802.1X for authentication
    IEEE 802.1D-2004 for Spanning Tree Protocol
    IEEE 802.3x for flow control
    IEEE 802.3u for 100BaseT(X)
    IEEE 802.1p for Class of Service
    IEEE 802.3 for 10BaseT

  • Configuration Options

    Command Line Interface (CLI) through Serial/Telnet/SSH
    Web Console (HTTP/HTTPS)
    Windows Utility

  • Filter

    IGMP v1/v2
    Static Multicast
    802.1Q

  • Management

    Back Pressure Flow Control
    SNMP Inform
    LLDP
    Syslog
    HTTP
    HTTPS
    Flow control
    SMTP
    QoS/CoS/ToS
    Port Mirroring
    SNMP Trap
    SNMPv1/v2c/v3
    IPv4
    Telnet
    DHCP Server
    SFTP
    SCP
    TFTP
    RARP
    Account Management
    DHCP Client (Option 1/3/12/50/51/53/54/55/57/61/66/67/124/255)
    DHCP Server (Option 1/3/6/12/15/28/42/50/55)
    DHCP Relay Agent

  • Redundancy Protocols

    RSTP
    Static Port Trunk
    Turbo Ring v2
    STP

  • Routing Redundancy

    VRRP

  • Security

    Secure Boot
    IPsec
    L2TP (server)
    RADIUS
    Trust access control

  • Time Management

    SNTP
    NTP Server/Client

  • Unicast Routing

    RIPV1/V2
    OSPF
    Static Route

  • Railway

    TRDP

  • Multicast Routing

    Static Route

  • Routing Throughput

    450,000 FPS (pure routing)

  • Technology

    NMAP-ID Scan
    ARP-Flood
    SYN/FIN Scan
    Null Scan
    ICMP-Death
    FIN Scan
    SYN-Flood
    TCP Sessions Without SYN
    Xmas Scan
    NMAP-Xmas Scan
    SYN/RST Scan

  • Filter

    ICMP
    MAC address
    Ethernet protocols
    Ports
    IP address
    DDoS

  • Quick Automation Profiles

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

  • Stateful Inspection

    Router firewall
    Transparent (bridge) firewall

  • Throughput

    Max. 350,000 packets per second

  • Authentication

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

  • Encryption

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

  • Concurrent VPN Tunnels

    Max. 250 IPsec VPN tunnels

  • IGMP Groups

    1024

  • MAC Table Size

    16 K

  • Max. No. of VLANs

    32

  • VLAN ID Range

    VID 1 to 4094

  • LED Indicators

    STATE, PWR1, PWR2, FAULT, 10/100/1000M, PoE

  • Features

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

  • Console Port

    RS-232 (M12 B-coded 5-pin female connector)

  • M12 Connector

    M12 A-coded 5-pin female (for ABC-02 USB storage)

  • Input Current

    TN-4908/TN-4908-ETBN-4TXBP models: 0.5 A @ 24 V
    TN-4908-4GTX/TN-4908-ETBN-4GTXBP models: 0.6 A @ 24 V
    TN-4908-8GTX/TN-4908-4GTX-4GTXBP models: 0.7 A @ 24 V
    TN-4908-4GPOE-4GTX/TN-4908-ETBN-4GPOE-4GTXBP models: 3.6 A @ 24 V
    TN-4916-4GTX/TN-4916-ETBN-4GTXBP models: 1.0 A @ 24 V
    TN-4916-8PoE-4GPOE-4GTX/TN-4916-ETBN-8POE-4GPOE-4GTXBP/TN-4916-12POE-4GTX/TN-4916-ETBN-12PoE-4GTXBP models: 6.1 A @ 24 V

  • Input Voltage

    24/36/48/72/96/110 VDC
    Redundant dual inputs
    No. of power inputs: 2

  • Operating Voltage

    16.8 to 137.5 VDC

  • Power Connector

    M12 K-coded 5-pin male connector

  • Power Consumption (Max.)

    TN-4908/TN-4908-ETBN-4TXBP models: max. 11.2 W
    TN-4908-4GTX/TN-4908-ETBN-4GTXBP models: max. 13.2 W
    TN-4908-8GTX/TN-4908-4GTX-4GTXBP models: max. 16.4 W
    TN-4908-4GPOE-4GTX/TN-4908-ETBN-4GPOE-4GTXBP models: max. 30.8 W
    TN-4916-4GTX/TN-4916-ETBN-4GTXBP models: max. 24.3 W
    TN-4916-8PoE-4GPOE-4GTX/TN-4916-ETBN-8POE-4GPOE-4GTXBP/TN-4916-12POE-4GTX/TN-4916-ETBN-12PoE-4GTXBP models: max. 40.5 W
    Note: The system power consumption refers to the maximum power consumption of the PoE model without PoE load (excluding the power consumption of the PD).

  • Total PoE Power Budget

    TN-4908 PoE Models: 50 W
    TN-4916 PoE Models: 95 W

  • Overload Current Protection

    Supported

  • Reverse Polarity Protection

    Supported

  • Housing

    Metal

  • Dimensions

    TN-4908 Non-PoE Models: 160 x 115 x 70 mm (6.30 x 4.53 x 2.76 in)
    TN-4908 PoE Models: 160 x 115 x 100 mm (6.30 x 4.53 x 3.94 in)
    TN-4916 Models: 206 x 115 x 100 mm (8.10 x 4.53 x 3.94 in)

  • IP Rating

    IP40

  • Weight

    TN-4908 Non-PoE Models: 1120 g (2.47 lb)
    TN-4908 PoE Models: 1640 g ( 3.62 lb)
    TN-4916 Models: 1990 g ( 4.39 lb)

  • Installation

    Wall mounting

  • Protection

    PCB conformal coating

  • Operating Temperature

    -40 to 70°C (-40 to 158°F)

  • Storage Temperature (package included)

    -40 to 85°C (-40 to 185°F)

  • Ambient Relative Humidity

    5 to 95% (non-condensing)

  • Altitude

    3,000 m

  • EMC

    EN 55032, EN 55035

  • 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: 20 V/m
    IEC 61000-4-4 EFT: Power: 2 kV; Signal: 2 kV
    IEC 61000-4-5 Surge: Power: 2 kV; Signal: 2 kV
    IEC 61000-4-6 CS: 10 V
    IEC 61000-4-8 PFMF

  • Cybersecurity

    IEC 62443-4-2 Security Level 2

  • Radio Frequency

    FCC

  • Railway

    EN 50121-4
    EN 50155
    IEC 60068-2-1, EN 50155
    IEC 60068-2-14, EN 50155
    IEC 60068-2-2, EN 50155
    IEC 60068-2-30, EN 50155
    IEC 60068-2-78
    IEC 60571

  • Railway Fire Protection

    EN 45545-2

  • Safety

    IEC 62368, UL 62368

  • Salt Spray Test

    EN 50155

  • Shock

    IEC 60068-2-27, IEC 61373, EN 50155

  • Vibration

    IEC 60068-2-64, IEC 61373, EN 50155

  • Package Drop Test

    ISTA 1A

  • Package Vibration Test

    ISTA 1A

  • Green Product

    RoHS, CRoHS, WEEE

  • Time

    TN-4908 models: 1,899,861 hrs
    TN-4908-ETBN-4TXBP models: 1,481,755 hrs
    TN-4908-4GTX models:1,828,376
    TN-4908-ETBN-4GTXBP models: 1,208,027 hrs
    TN-4908-8GTX models:795,840 hrs
    TN-4908-ETBN-4GTX-4GTBXP models: 648,903 hrs
    TN-4908-4GPOE-4GTX models:1,395,992 hrs
    TN-4908-ETBN-4GPOE-4GTXBP models:1,318,027 hrs
    TN-4916-4GTX models: 1,337,525 hrs
    TN-4916-ETBN-4GTXBP models: 973,422 hrs
    TN-4916-12POE-4GTX models: 1,0127,024 hrs
    TN-4916-ETBN-12POE-4GTXBP models: 798,449 hrs
    TN-4916-8POE-4GPOE-4GTX models 550,148 hrs
    TN-4916-ETBN-8POE-4GPOE-4GTXBP: 472,578 hrs

  • Standards

    Telcordia SR332 Issue 2

Software, Firmware, and Drivers

FILTER

All Firmware Software Package
Name Type Checksum Version Operating System Release Date
Firmware for TN-4900 Series Download
79.9 MB 		Firmware
SHA-512
v3.24
Apr 15, 2026 Apr 15, 2026 Release notes
SNMP MIB file for TN-4900 Series Download
207.1 KB 		Software Package
SHA-512
v3.24
Apr 15, 2026 Apr 15, 2026 Release notes
Network Security Package for TN-4900 Series Download
8.3 MB 		Software Package
SHA-512
v17.0.15
Dec 11, 2025 Dec 11, 2025 Release notes

Support Documents

FILTER

All Datasheet Declaration Manual QIG
Name Type Version Release Date
Manual for MX-ROS V3 Download
31.3 MB 		Manual v1.15 Apr 18, 2026 Apr 18, 2026
CLI Manual for MX-ROS V3 Download
6.4 MB 		Manual v1.10 Apr 18, 2026 Apr 18, 2026
Datasheet for TN-4900 Series Download
1.9 MB 		Datasheet v1.5 Mar 25, 2026 Mar 25, 2026
QIG for TN-4900 Series Download
2.6 MB 		QIG v1.3 Oct 28, 2025 Oct 28, 2025
FOSS Statement for MX-ROS products Download
2.0 MB 		Declaration v3.21 Oct 24, 2025 Oct 24, 2025
Manual for MX-ROS V3 Download
31.6 MB 		Manual v1.13 Oct 03, 2025 Oct 03, 2025
Manual for TN-4900 Series Download
30.0 MB 		Manual v1.10 Jan 07, 2025 Jan 07, 2025
CLI Manual for MX-ROS TN-4900 Series Download
5.5 MB 		Manual v1.5 Jan 07, 2025 Jan 07, 2025
Declaration of Conformity for TN-4900 Series (with PoE) Download
319.1 KB 		Declaration v1.0 Dec 17, 2024 Dec 17, 2024
FOSS Statement for TN-4900 Series Download
2.4 MB 		Declaration v3.6 Jul 09, 2024 Jul 09, 2024
Declaration of Conformity for TN-4916 Series Download
330.2 KB 		Declaration v1.0 Jan 24, 2024 Jan 24, 2024
Declaration of Conformity for TN-4900 Series (non PoE) Download
327.3 KB 		Declaration v1.0 Jan 22, 2024 Jan 22, 2024
IEC 62443-4-2 Security Level 2 Certification for TN-4900 Series (non-firewall models) Download
210.0 KB 		Declaration v1.0 Jul 28, 2023 Jul 28, 2023
IEC 62443-4-2 Security Level 2 Certification for TN-4900 Series (firewall models) Download
202.0 KB 		Declaration v1.0 Jul 12, 2023 Jul 12, 2023

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Available Models (21)

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Firewall✓–✓✓
ETBN–✓✓–
10/100BaseT(X), M12 D-coded 4-pin Female Connector8444
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay–44–
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector––––
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector–––4
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay––––
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector––––
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Firewall–✓✓–
ETBN✓✓–✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector44––
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay––––
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector––––
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector––84
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay44–4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector––––
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Firewall✓✓–✓
ETBN✓–✓✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector––––
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay––––
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector––––
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector44––
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay4–44
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector–444
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Firewall✓–✓✓
ETBN–✓✓–
10/100BaseT(X), M12 D-coded 4-pin Female Connector121212–
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay––––
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector–––12
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector4––4
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay–44–
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector––––
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Firewall–✓✓–
ETBN✓✓–✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector––––
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay––––
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector121288
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector––4–
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay44–4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector––44
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Firewall✓
ETBN✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector–
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay–
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector8
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector–
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector4
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