Moxa
TN-4528B-20P-4GP-4GBP-CT-T

TN-4528B-20P-4GP-4GBP-CT-T

TN-4500B Series

EN 50155 8-port to 28-port Ethernet managed switches with up to 16 Gigabit ports and up to 24 PoE ports

  • Up to 28 Ethernet ports with M12 inner push-pull connectors compliant with IEC 61076-010
  • Up to 8 Gigabit ports with optional dual relay bypass functionality
  • Up to 24 PoE ports with a 150 W total PoE power budget
  • Isolated power with 24 to 110 VDC power supply range
  • -40 to 70°C system operating temperature range
  • Complies with all EN 50155 mandatory test items
  • IEC 62443-4-2 Security Level 2 certified
  • Powered by MX-NOS Rail Version, a comprehensive management firmware tailored to the unique demands of onboard railway networks

Certifications En50155 · En50121 4 · CE · FCC

Ships from and sold by A5 IT, an authorized Moxa reseller.

Specifications

Ethernet Interface

PoE Ports (10/100BaseT(X), M12 D-coded 4-pin female connector)
20
PoE Ports (100/1000BaseT(X), M12 X-coded 8-pin female connector)
4
10/100/1000BaseT(X) Ports (M12 X-coded 8-pin female connector with bypass relay)
4
Standards
IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X) IEEE 802.3ab for 1000BaseT(X) IEEE 802.3af/at for PoE/PoE+ output IEEE 802.1D-2004 for Spanning Tree Protocol IEEE 802.1p for Class of Service IEEE 802.1Q for VLAN Tagging IEEE 802.1w for Rapid Spanning Tree Protocol IEEE 802.1X for authentication IEEE 802.3x for flow control

Ethernet Software Features

Configuration Options
Command Line Interface (CLI) through Serial/Telnet/SSH Web Console (HTTP/HTTPS) MXview One MXconfig
Filter
GMRP GVRP GARP 802.1Q VLAN IGMP Snooping v1/v2/v3 IGMP Querier Static Multicast
Management
IPv4/IPv6 Flow control Back Pressure Flow Control DHCP Server DHCP Client DHCP Relay Agent (Option 82) QoS/CoS/ToS ARP RARP LLDP Port Mirroring Linkup Delay SMTP SNMP Trap SNMP Inform SNMPv1/v2c/v3 RMON TFTP SFTP HTTP HTTPS Telnet Syslog Private MIB Loop Protection
MIB
P-BRIDGE MIB Q-BRIDGE MIB Ethernet-like MIB IEEE8021-SPANNING-TREE-MIB IEEE8021-PAE-MIB IEEE8023-LAG-MIB LLDP-EXT-DOT1-MIB LLDP-EXT-DOT3-MIB SNMPv2-MIB RMON MIB Groups 1, 2, 3, 9
Redundancy Protocols
STP RSTP MSTP Turbo Ring v2 Link Aggregation Ring Coupling Static Port Trunk LACP MRP
Security
Rate Limit Access control list DHCP Snooping HTTPS/SSL Login and password policy MAC Security (MACsec) Port Lock RADIUS SSH Sticky MAC TACACS+ Trust access control
Time Management
SNTP Server/Client NTP Server/Client

Switch Properties

MAC Table Size
16 K
IGMP Groups
1024
Max. No. of VLANs
256
VLAN ID Range
VID 1 to 4094
Priority Queues
8

LED Interface

LED Indicators
PWR1, PWR2, FAULT, STATE, MSTR/HEAD, CPLR/TAIL, Ethernet ports, PoE ports

Serial Interface

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

USB Interface

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

Power Parameters

Input Current
9.3 A @ 24 VDC
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
Overload Current Protection
Supported
Reverse Polarity Protection
Supported
Power Consumption (Max.)
With PoE disabled: 28.5 W @ 24 VDC 28.7 W @ 110 VDC With PoE enabled: 60.1 W @ 24 VDC 39.6 W @ 110 VDC
Total PoE Power Budget
150 W

Physical Characteristics

Housing
Metal
Dimensions
348 x 115 x 133 mm (13.70 x 4.53 x 5.24 in)
IP Rating
IP42
Weight
2,802 g (6.18 lb)
Installation
Wall mounting
Protection
PCB conformal coating

Environmental Limits

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
3000 m

Standards and Certifications

EMC
EN 55032/35
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
IEC 60068-2-1, EN 50155 IEC 60068-2-2, EN 50155 IEC 60068-2-30, EN 50155 IEC 60068-2-78 EN 50121-4 EN 50155 IEC 60571
Railway Fire Protection
EN 45545-2
Safety
UL 62368-1 IEC 62368-1 EN 62368-1 BSMI
Salt Spray Test
EN 50155
Shock
IEC 60068-2-27, IEC 61373, EN 50155
Vibration
IEC 60068-2-64, IEC 61373, EN 50155
Package Vibration Test
ISTA 1A
Package Drop Test
ISTA 1A

Declaration

Green Product
RoHS, CRoHS, WEEE

MTBF

Time
581,667 hrs
Standards
Telcordia SR332 Issue 4

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Documentation

NameTypeVersionDate
Software Package for TN-4500B Series378.1 KBSoftware Packagev2.1Jul 31, 2026 Jul 31, 2026 Release notes
Firmware for TN-4500B Series58.5 MBFirmwarev2.1Jul 31, 2026 Jul 31, 2026 Release notes
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
MIB File for TN-4500B Series378.0 KBSoftware Packagev2.0Dec 31, 2025 Dec 31, 2025 Release notes
Firmware for TN-4500B Series58.3 MBFirmwarev2.0Dec 31, 2025 Dec 31, 2025 Release notes
Firmware for TN-4500B Series51.6 MBFirmwarev1.3Sep 03, 2025 Sep 03, 2025 Release notes
Firmware for TN-4500B Series51.6 MBFirmwarev1.2Mar 07, 2025 Mar 07, 2025 Release notes
Firmware for TN-4500B Series51.6 MBFirmwarev1.1Feb 07, 2025 Feb 07, 2025 Release notes
Firmware for TN-4500B Series51.4 MBFirmwarev1.0Sep 24, 2024 Sep 24, 2024 Release notes
MX-NOS Rail Version V2 User Manual13.0 MBManualv1.1Jul 31, 2026
Moxa FOSS Statement_MX-NOS Rail Version V21.7 MBDeclarationv2.0Dec 31, 2025
QIG for TN-4500B Series6.9 MBQIGv2.0Dec 31, 2025
MX-NOS Rail Version V2 User Manual12.7 MBManualv1.0Dec 31, 2025
MX-NOS Rail Version V2 Command Line Interface Manual5.8 MBManualv1.5Dec 31, 2025
Datasheet for TN-4500B Series4.0 MBDatasheetv2.0Dec 24, 2025
IEC 62443-4-2 Security Level 2 Certification for TN-4500B Series320.5 KBDeclarationv1.0Nov 05, 2025
Declaration of Conformity (EU/UK) for TN-4512B/4516B (with Full G)314.7 KBDeclarationv1.0Oct 03, 2025
Declaration of Conformity (EU/UK) for TN-4516B (with PoE)288.7 KBDeclarationv1.0Aug 22, 2025
Declaration of Conformity (EU/UK) for TN-4516B (non PoE)311.1 KBDeclarationv1.0Aug 22, 2025
Declaration of Conformity (EU/UK) for TN-4524B (with PoE)310.4 KBDeclarationv1.0Jul 30, 2025
Declaration of Conformity (EU/UK) for TN-4512B (with PoE)307.5 KBDeclarationv1.0Nov 04, 2024
Declaration of Conformity (EU/UK) for TN-4508B (non PoE)306.8 KBDeclarationv1.0Nov 01, 2024
Declaration of Conformity (EU/UK) for TN-4512B (non PoE)306.9 KBDeclarationv1.0Nov 01, 2024
QIG for TN-4500B Series4.8 MBQIGv1.0Sep 19, 2024
Declaration of Conformity (EU/UK) for TN-4528B (with PoE)309.5 KBDeclarationv1.0Sep 09, 2024
Declaration of Conformity (EU/UK) for TN-4520B (with PoE)310.5 KBDeclarationv1.0Aug 28, 2024