TN-G6512 Series

EN 50155 12-port full Gigabit Ethernet switches with up to 8 PoE ports


  • 12 gigabit ports with push-pull M12 connectors
  • Isolated power with wide 24 to 110 VDC power supply range
  • Complies with all EN 50155 mandatory test items*
  • -40 to 70°C operating temperature range
  • IP67-rated rugged casing
  • Turbo Ring and Turbo Chain (recovery time < 50 ms @ 250 switches), and STP/RSTP/MSTP for network redundancy
  • 8 IEEE 802.3at/af compliant combo PoE and Ethernet ports
  • Provides up to 30 watts per PoE port

    *This product is suitable for rolling stock railway applications, as defined by the EN 50155 standard. For a more detailed statement, click here:


The ToughNet TN-G6512 Series M12 managed Ethernet switches are designed for railway applications, including rolling stock and wayside installations. The switches use M12 and other circular connectors to ensure tight, robust connections, and guarantee reliable operation in industrial environments where vibration and shock are commonplace. The TN-G6512 Series Ethernet switches provide 12 gigabit Ethernet M12 ports; 8 ports support IEEE 802.3at/af compliant PoE (Powerover-Ethernet) functionality. These PoE switches are classified as power source equipment (PSE); they provide up to 30 watts of power per port, and can be used to power IEEE 802.3at/af compliant powered devices (PDs), such as IP cameras, wireless access points, and IP phones. The TN-G6512 Series has push-pull M12 connectors that are tailor-made for push-pull cables in order to facilitate quick installation, and also allow M12 rotary cables to be utilized. The 24 to 110 VDC wide power input range and isolated dual power inputs not only allow you to use the same type of power source at different sites around the globe, but also increase the reliability of your communications system.


Furthermore, the -40 to 70°C operating temperature and IP67-rated enclosure allow deployment in harsh environments. The TN-G6512 Series Ethernet switches are compliant with essential sections of EN 50155, covering operating temperature, power input voltage, surge, ESD, and vibration, as well as conformal coating and power insulation, making the switches suitable for a variety of industrial applications.

Features and Benefits

  • Provides up to 30 watts per PoE port with a total power budget of 96 watts per switch
  • IPv6 Ready logo awarded (IPv6 Logo Committee certified)
  • Leading EN 50155-compliant PoE switches for rolling stock applications
  • DHCP Option 82 for IP address assignment with different policies
  • Turbo Ring and Turbo Chain (recovery time < 50 ms @ 250switches), and STP/RSTP/MSTP for network redundancy
  • IGMP snooping and GMRP for filtering multicast traffic
  • EtherNet/IP and Modbus/TCP industrial Ethernet protocols supported
  • Port-based VLAN, IEEE 802.1Q VLAN, and GVRP to ease network planning
  • QoS (IEEE 802.1p/1Q and ToS/DiffServ) allows real-time traffic classification and prioritization
  • IEEE 802.3ad, LACP for optimum bandwidth utilization
  • SNMPv1/v2c/v3 for different levels of network management
  • TACACS+, SNMPv3, IEEE 802.1X, HTTPS, and SSH to enhance network security
  • RMON for efficient network monitoring and proactive capability
  • Bandwidth management prevents unpredictable network status
  • Lock port allows access by only authorized MAC addresses
  • Port mirroring for online debugging
  • Automatic warning by exception through email and relay output
  • Line-swap fast recovery
  • LLDP for automatic topology discovery in network management software
  • Configurable by web browser, Telnet/serial console, CLI, and Windows utility
  • Loop protection prevents network loops
  • Panel mounting installation capability

Standards IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X)
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3x for Flow Control
IEEE 802.1D-2004 for Spanning Tree Protocol
IEEE 802.1w for Rapid Spanning Tree Protocol
IEEE 802.1s for Multiple Spanning Tree Protocol
IEEE 802.1Q for VLAN Tagging
IEEE 802.1p for Class of Service
IEEE 802.1X for Authentication
IEEE 802.3ad for Port Trunk with LACP
Software Features
Management IPv4/IPv6, SNMP v1/v2c/v3, Telnet, LLDP, Port Mirror, Syslog, RMON, BootP, DHCP Server/Client, DHCP Option 66/67/82, TFTP, SMTP, RARP, HTTP, HTTPS, SNMP inform, Flow Control, Back pressure flow control
Filter 802.1Q VLAN, Port-Based VLAN, GVRP, IGMPv1/v2/v3, GMRP, Static Multicast
Redundancy Protocols STP/RSTP, MSTP, Turbo Ring v1/v2, Turbo Ring v2 with DRC, Turbo Chain, Link Aggregation
Security RADIUS, TACACS+, SSL, SSH, Port Lock, Broadcast Storm Protection, Rate Limit
Time Management SNTP, NTP Server/Client, IEEE 1588v2 PTP (SW-based)
MIB MIB-II, Ethernet-like MIB, P-BRIDGE MIB, Q-BRIDGE MIB, Bridge MIB, RSTP MIB, RMON MIB Group 1, 2, 3, 9
Switch Properties
Priority Queues 4
Max. Number of VLANs 64
VLAN ID Range VID 1 to 4094
IGMP Groups 256
Gigabit Ethernet Front cabling, M12 X-coded 8-pin connector, 10/100/1000BaseT(X) auto negotiation speed, F/H duplex mode, auto MDI/MDI-X connection
Console Port M12 B-coding 5-pin female connector
USB Storage Port M12 A-coding 5-pin female connector
Power Requirements
Input Voltage 24/36/48/72/96/110 VDC
Operating Voltage 16.8 to 137.5 VDC
Input Current Max. 5.8 A @ 24 VDC
Overload Current Protection Present
Connection M12 K-coding connector
Reverse Polarity Protection Present
Physical Characteristics
Housing Metal
IP Rating IP67 protection (optional protective caps available for unused ports)
Dimensions 159 x 97 x 100 mm (6.26 x 3.82 x 3.94 in)
Weight 1,750 g (3.86 lb)
Installation Panel mounting
Environmental Limits
Operating Temperature -40 to 70°C (-40 to 158°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Altitude 2000 m
Please contact Moxa if you require products guaranteed to function at higher altitude.
Standards and Certifications
Safety UL 61010-2-201, EN 60950-1 (LVD)
EMC EN 55032, EN 55035
EMI CISPR 22, 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 6 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
Rail Traffic (for panel mounting installations) EN 50155*, EN 50121-4, EN 50121-3-2, EN 45545-2
 *This product is suitable for rolling stock railway applications, as defined by the EN 50155 standard. For a more detailed statement, click here
Shock EN 50155, IEC 61373
Freefall IEC 60068-2-32
Vibration EN 50155, IEC 61373
MTBF (mean time b etween failures)
Time 471,356 hrs
Standard Telcordia SR332
Warranty Period 5 years
Details See

To request a quote, indicate which items you are interested in below and click "Get a Quote".

Available Models

  Model No. Description
TN-G6512-8GPoE-WV-T EN 50155 12-port full gigabit Ethernet switches with 4 gigabit LAN ports and 8 PoE ports, dual power inputs, -40 to 70°C operating temperature
TN-G6512-8GPoE-WV-CT-T EN 50155 12-port full gigabit Ethernet switches with 4 gigabit LAN ports and 8 PoE ports, dual power inputs, -40 to 70°C operating temperature, conformal coating

Compatible Modules

  Model No. Description
ABC-02-P-USB-M12-CT-T Configuration backup and restoration tool with M12 connector for Moxa's ToughNet series of managed Ethernet switches and wireless APs/bridges/clients, -40 to 75°C operating temperature, conformal coating

Optional Accessories

  Model No. Description
EDS-SNMP OPC Server Pro OPC server for integrating SNMP devices into HMI/SCADA systems
Trial Software
  Model No. Description
MXview Industrial network management software designed for converged automation networks

  • © 2018 Moxa Inc. All rights reserved.