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 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

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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.

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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
Industrial 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

Warranty Period

5 years
Details

See www.moxa.com/warranty

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Software, Firmware, and Drivers

Name	Type	Checksum	Version	Operating System	Release Date
SNMP MIB file for TN-4900 Series 203.0 KB	Software Package	D3D8E2F2D70B7D924C13004C376CAC05AC5217B48A8D4F3FCA72EF95F832FE36F8AFDB25FC8C9225D18D9B8605C114D0B786360840B7B6227CDD857C870B4D00 SHA-512	v3.21		Oct 15, 2025 Oct 15, 2025 Release notes
Firmware for TN-4900 Series 84.5 MB	Firmware	27174500148B2F16888AF2A5CBB42B52A25BF7901169BBA65D71105C8A79EBB3832DF1F295C5CC898836EEFA5625B6BEE837905C43C04FCDD4EBF7DE321AA061 SHA-512	v3.21		Oct 15, 2025 Oct 15, 2025 Release notes
Network Security Package for TN-4900 Series 8.1 MB	Software Package	32E2096CEC63BDBD0EAF2A88E6B6F477B2201ADB5029EDD41EE08EBBA117EA7CBAE5AA750D2BCC2AE852D09C359DD0CD8DBDF176C4B14D60C4B3F7BE75EEEF58 SHA-512	v13.0.26		Oct 01, 2025 Oct 01, 2025 Release notes
Software Package for MXview One Series (Windows version) 240.7 MB	Software Package	C9CA47BD9F8DF8572A4BE0057160CE238783FAA7E17FEFF184E3D5FF4092BD47C152C69E8A8F611E0A5EE3DF4A4F319AEAA70E2F1539DC467FAAECE541E52226 SHA-512	v1.6.1	Windows 10 Windows 11 Windows Server 2016 Windows Server 2019 Windows Server 2022	Sep 05, 2025 Sep 05, 2025 Release notes
Software Package for MXview One Series (Linux version) 554.4 MB	Software Package	D87455B0269026E60219AF682DDF8AB130474AF29FB83160381C5FB4E6F2D9725CA6129EE057C16ADDAD9C6D343F6B403AAC4D18D9528FAD22A7DA60D6044392 SHA-512	v1.6.1	Ubuntu 18.04 Ubuntu 20.04 Ubuntu 22.04	Sep 05, 2025 Sep 05, 2025 Release notes
Firmware for TN-4900 Series 58.5 MB	Firmware	FF4DF1F263D5112A6638409783D0D1ADEFA9A9E7B1B7A3BC250E2DEB70C03ADF0C622865D3402F64E606710DFDCCAB3D94085E76BB0E4E20AE7E171DEBF969A2 SHA-512	v1.2		Dec 28, 2022 Dec 28, 2022 Release notes

Support Documents

Name	Type	Version	Release Date
QIG for TN-4900 Series 2.6 MB	QIG	v1.3	Oct 28, 2025 Oct 28, 2025
Manual for MX-ROS V3 31.6 MB	Manual	v1.13	Oct 03, 2025 Oct 03, 2025
Datasheet for TN-4900 Series 1.9 MB	Datasheet	v1.4	Jul 28, 2025 Jul 28, 2025
Manual for TN-4900 Series 30.0 MB	Manual	v1.10	Jan 07, 2025 Jan 07, 2025
CLI Manual for MX-ROS TN-4900 Series 5.5 MB	Manual	v1.5	Jan 07, 2025 Jan 07, 2025
Declaration of Conformity for TN-4900 Series (with PoE) 319.1 KB	Declaration	v1.0	Dec 17, 2024 Dec 17, 2024
FOSS Statement for TN-4900 Series 2.4 MB	Declaration	v3.6	Jul 09, 2024 Jul 09, 2024
Declaration of Conformity for TN-4916 Series 330.2 KB	Declaration	v1.0	Jan 24, 2024 Jan 24, 2024
Declaration of Conformity for TN-4900 Series (non PoE) 327.3 KB	Declaration	v1.0	Jan 22, 2024 Jan 22, 2024

Leading the New Era of OT Network Security

Available Models (21)

Show Images

	Compare TN-4916-ETBN-12PoE-4GTXBP-WV-CT-T	Compare TN-4908-ETBN-4GTXBP-WV-CT-T	Compare TN-4908-ETBN-F-4GTXBP-WV-CT-T	Compare TN-4916-4GTX-WV-CT-T
Firewall	–	–	✓	✓
ETBN	✓	✓	✓	–
10/100BaseT(X), M12 D-coded 4-pin Female Connector	–	4	4	12
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 Connector	–	–	–	4
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	4	4	4	–
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	–	–	–	–
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare TN-4908-ETBN-F-4TXBP-WV-CT-T	Compare TN-4916-ETBN-F-12PoE-4GTXBP-WV-CT-T	Compare TN-4916-ETBN-F-4GTXBP-WV-CT-T	Compare TN-4908-ETBN-4TXBP-WV-CT-T
Firewall	✓	✓	✓	–
ETBN	✓	✓	✓	✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector	4	–	12	4
10/100BaseT(X), M12 D-coded 4-pin Female Connector With Bypass Relay	4	–	–	4
10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector	–	12	–	–
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector	–	–	–	–
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	–	4	4	–
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	–	–	–	–
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare TN-4916-ETBN-4GTXBP-WV-CT-T	Compare TN-4916-12PoE-4GTX-WV-CT-T	Compare TN-4916-8PoE-4GPoE-4GTX-WV-CT-T	Compare TN-4908-ETBN-4GPoE-4GTXBP-WV-CT-T
Firewall	–	✓	✓	–
ETBN	✓	–	–	✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector	12	–	–	–
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	8	–
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector	–	4	4	–
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	4	–	–	4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	–	–	4	4
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare TN-4908-8GTX-WV-CT-T	Compare TN-4908-4GPoE-4GTX-WV-CT-T	Compare TN-4908-ETBN-4GTX-4GTXBP-WV-CT-T	Compare TN-4908-4GTX-WV-CT-T
Firewall	✓	✓	–	✓
ETBN	–	–	✓	–
10/100BaseT(X), M12 D-coded 4-pin Female Connector	–	–	–	4
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	8	4	4	4
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	–	–	4	–
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	–	4	–	–
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare TN-4916-ETBN-F-8PoE-4GPoE-4GTXBP-WV-CT-T	Compare TN-4908-WV-CT-T	Compare TN-4916-ETBN-8PoE-4GPoE-4GTXBP-WV-CT-T	Compare TN-4908-ETBN-F-4GPoE-4GTXBP-WV-CT-T
Firewall	✓	✓	–	✓
ETBN	✓	–	✓	✓
10/100BaseT(X), M12 D-coded 4-pin Female Connector	–	8	–	–
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	8	–	8	–
10/100/1000BaseT(X) Ports, M12 X-coded Female Connector	–	–	–	–
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	4	–	4	4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	4	–	4	4
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare TN-4908-ETBN-F-4GTX-4GTXBP-WV-CT-T
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 Connector	4
100/1000BaseT(X) Ports, M12 X-coded 8-pin Female Connector With Bypass Relay	4
10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector	–
	Add to Quote View Bag

Leading the New Era of OT Network Security

Software platform featuring real-time protection, easy management, and industry-focused design to guide your OT journey.

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TN-4900 Series

EN 50155 Gigabit security routers

Features and Benefits

Certifications

Introduction

Additional Features and Benefits

IEC 62443-4-2 Security Level 2 Certified

MX-ROS Addresses Growing Cybersecurity Threats

Ethernet Interface

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

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

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

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

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

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

Standards

Ethernet Software Features

Configuration Options

Filter

Management

Redundancy Protocols

Routing Redundancy

Security

Time Management

Unicast Routing

Railway

Multicast Routing

Routing Throughput

DoS and DDoS Protection

Technology

Firewall

Filter

Quick Automation Profiles

Stateful Inspection

Throughput

IPsec VPN

Authentication

Encryption

Concurrent VPN Tunnels

Switch Properties

IGMP Groups

MAC Table Size

Max. No. of VLANs

VLAN ID Range

LED Interface

LED Indicators

NAT

Features

Serial Interface

Console Port

USB Interface

M12 Connector

Power Parameters

Input Current

Input Voltage

Operating Voltage

Power Connector

Power Consumption (Max.)

Total PoE Power Budget

Overload Current Protection

Reverse Polarity Protection

Physical Characteristics

Housing

Dimensions

IP Rating

Weight

Installation

Protection

Environmental Limits

Operating Temperature

Storage Temperature (package included)

Ambient Relative Humidity

Altitude

Standards and Certifications

EMC

EMI

EMS

Industrial Cybersecurity

Radio Frequency

Railway