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TN-4500A Series

Home  >   MOXA  >   Industrial Network Infrastructure  >  
Ethernet Switches  >   EN 50155 Switches

EN 50155 12+4G/24+4G-port Gigabit Ethernet switches with up to 20 PoE ports

Product Feature

  • Up to 4 Gigabit ports with PoE function
  • Isolated power with 24 to 110 VDC power supply range
  • 2 Gigabit fiber ports with embedded multi-mode Q-ODC® interface on fiber models
  • 2 Gigabit ports with bypass relay function on bypass models
  • Complies with all EN 50155 mandatory test items
  • -40 to 75°C operating temperature range
  • Turbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches), and STP/RSTP/MSTP for network redundancy
  • Up to 20 IEEE 802.3at/af compliant combo PoE and Ethernet ports
  • Provides up to 30 W per PoE port


The ToughNet TN-4500A 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-4500A Series Ethernet switches provide 12 or 24 fast Ethernet M12 ports with or without IEEE 802.3at/af compliant PoE functionality, and the Gigabit models have 4 Gigabit Ethernet interfaces with PoE and optional bypass relay functionality. In addition, the fiber models provide 2 Gigabit fiber interface ports with an embedded 2 km multimode fiber transceiver. The PoE switches are classified as power source equipment (PSE).

The switches 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 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 75°C operating temperature range of the switches ensures they can withstand deployment in harsh environments. TN-4500A Series Ethernet switches are compliant with the mandatory 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.


Additional Features and Benefits

  • Provides up to 30 watts per PoE port with a total power budget of 120 watts per switch
  • IPv6 Ready logo awarded (IPv6 Logo Committee certified)
  • Switches are compliant with the mandatory test items of the EN 50155 standard to ensure suitability for rolling stock applications
  • DHCP Option 82 for IP address assignment with different policies
  • Turbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches), 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 proactive and efficient network monitoring
  • Bandwidth management to prevent 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 to prevent network loops
  • Panel mounting installation capability

Input/Output Interface

Alarm Contact Channels2 x relay output in one M12 A-coded 5-pin male connector with current
carrying capacity of 1 A @ 30 VDC

Ethernet Interface

10/100/1000BaseT(X) Ports (M12
A-coded 8-pin female connector)
TN-4516A-4GTX-WV-T: 4
TN-4516A-4GTX-WV-CT-T: 4
10/100BaseT(X) Ports (M12 D-
coded 4-pin female connector)
TN-4516A Series non-PoE models: 12
TN-4524A/4528A Series: 8
PoE Ports (10/100BaseT(X), M12
D-coded 4-pin female connector)
TN-4516A Series PoE models: 12
TN-4524A/4528A Series: 16
PoE Ports (10/100/1000BaseT(X),
M12 A-coded 8-pin female
TN-4500A Series PoE models: 4
TN-4500A Series PoE models with Fiber or Bypass: 2
10/100/1000BaseT(X) Ports (M12
X-coded 8-pin female connector
with bypass relay)
TN-4516 A-4GTXBP Series: 4
TN-4516A-12PoE-2GPoE-2GTXBP Series: 2
TN-4528A-16PoE-2GPoE-2GTXBP Series: 2
10/100/1000BaseT(X) Ports, Q-
ODC Fiber Connector
TN-4516A-12PoE-2GPoE-2GODC Series: 2
TN-4528A-16PoE-2GPoE-2GODC Series: 2
StandardsIEEE 802.1D-2004 for Spanning Tree Protocol
IEEE 802.1p for Class of Service
IEEE 802.1Q for VLAN Tagging
IEEE 802.1s for Multiple Spanning Tree Protocol
IEEE 802.1w for Rapid Spanning Tree Protocol
IEEE 802.1X for authentication
IEEE 802.3 for 10BaseT
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3ad for Port Trunk with LACP
IEEE 802.3af/at for PoE/PoE+ 0utput: TN-4500A Series PoE models
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control
IEEE 802.3z for 1000BaseSX/LX/LHX/ZX

Ethernet Software Features

Broadcast ForwardingIP directed broadcast, broadcast forwarding
Configuration OptionsCommand Line Interface (CLI), Command Line Interface (CLI) through
Serial/Telnet/SSH, Web Console (HTTP/HTTPS), Windows Utility
Filter802.1Q, GMRP, GVRP, IGMP v1/v2/v3, Port-based VLAN, Static Multicast
Industrial ProtocolsEtherNet/IP Adapter (Slave), Modbus TCP Server (Slave)
ManagementBack Pressure Flow Control, DHCP Option 66/67/82, DHCP Server/Client,
Flow control, HTTP, IPv4/IPv6, LLDP, Port Mirror, QoS/CoS/ToS, RARP,
RMON, SMTP, SNMP Inform, SNMP Trap, Syslog, Telnet, Account
RMON MIB Groups 1, 2, 3, 9, RSTP MIB
Redundancy ProtocolsLink Aggregation, MSTP, RSTP, STP, Turbo Chain, Turbo Ring v1/v2, Turbo
Ring with DRC
SecurityBroadcast storm protection, HTTPS/SSL, Local Account Accessibility,
TACACS+, Port Lock, RADIUS, Rate Limit, SSH
Time ManagementIEEE 1588 PTP v1/v2, NTP Server/Client, SNTP

Switch Properties

IGMP Groups256
Max. No. of VLANs64
VLAN ID RangeVID 1 to 4094

LED Interface

LED IndicatorsSTATE, PWR1, PWR2, FAULT, 10/100/1000M

Serial Interface

Console PortM12 A-coded male connector

Power Parameters

Input CurrentTN-4516A Series non-PoE models: Max. 0.7 A @ 24 VDC
TN-4516A Series PoE models: Max. 7.0 A @ 24 VDC
TN-4524A Series: Max. 6.5 A @ 24 VDC
TN-4528A Series: Max. 7.2 A @ 24 VDC
Input Voltage24/36/48/72/96/110 VDC
No. of Power Inputs2
Operating Voltage16.8 to 137.5 VDC
Overload Current ProtectionSupported
Power ConnectorM23 connector
Reverse Polarity ProtectionSupported
Total PoE Power BudgetTN-4500A Series PoE models: 120 W

Physical Characteristics

IP RatingIP42
DimensionsTN-4516A Series: 229.8 x 132 x 122.3 mm (9.05 x 5.20 x 4.81 in)
TN-4524A/4528A Series: 347.8 x 132 x 122.3 mm (13.70 x 5.20 x 4.81 in)
WeightTN-4516A Series non-PoE models: 1,965 g (4.32 lb)
TN-4516A Series PoE models: 2,607 g (5.74 lb)
TN-4516A Series Fiber models: 2,705 g (5.96 lb)
TN-4524A Series: 3,063 g (6.74 lb)
TN-4528A Series: 3,304 g (7.27 lb)
TN-4528A Series Fiber models: 3,375 g (7.44 lb)
InstallationDIN-rail mounting (optional), Wall mounting
ProtectionTN-4500A Series -CT models: PCB Conformal Coating

Environmental Limits

Operating Temperature-40 to 75°C (-40 to 167°F)
Storage Temperature (package
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity5 to 95% (non-condensing)
Altitude2000 m

Standards and Certifications

EMCEN 55032/24
EMSIEC 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
FreefallIEC 60068-2-31
Radio FrequencyFCC
RailwayEN 50121-4, EN 50155, IEC 60571
Railway Fire ProtectionEN 45545-2
SafetyIEC 60950-1, UL 61010-2-201
ShockIEC 60068-2-27, IEC 61373, EN 50155
VibrationIEC 60068-2-64, IEC 61373, EN 50155


Green ProductRoHS, CRoHS, WEEE


StandardsTelcordia SR332
TimeTN-4516A-4GTX Series: 599,164 hrs
TN-4516A-4GTXBP Series: 589,421 hrs
TN-4516A-12PoE-4GPoE Series: 428,680 hrs
TN-4516A-12PoE-2GPoE-2GTXBP Series: 427,322 hrs
TN-4516A-12PoE-2GPoE-2GODC Series: 421,432 hrs
TN-4524A-16PoE Series: 429,402 hrs
TN-4528A-16PoE-4GPoE Series: 393,894 hrs
TN-4528A-16PoE-2GPoE-2GTXBP Series: 392,746 hrs
TN-4528A-16PoE-2GPoE-2GODC Series: 387,767 hrs


Warranty Period5 years
DetailsSee www.moxa.com/warranty
Name Type Version Release Date
Datasheet for TN-4500A Series Datasheet V1.0 11 November 2018

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