MOXA TN-4528B-20P-4GP-4GBP-CT-T Introduction
The MOXA TN-4528B-20P-4GP-4GBP-CT-T Managed Ethernet Switch delivers unmatched reliability for industrial and transportation systems that demand seamless connectivity. As part of MOXA’s trusted EN 50155 Switches family, it is specifically engineered to perform in harsh rail and automation environments, offering long-term durability and efficient network management. This switch features 20 Fast Ethernet PoE ports and 4 Gigabit Ethernet With Bypass Relay plus 4 Gigabit PoE ports, all utilizing M12 D-coded and X-coded connectors to maintain secure, vibration-resistant connections. The 150 W PoE power budget ensures flexible power distribution across devices such as IP cameras and sensors, while the 16.8 to 137.5 VDC voltage range supports versatile deployment in rolling stock or control cabinets. Built with a rugged IP42 metal body, the TN-4528B-20P-4GP-4GBP-CT-T maintains reliable operation from -40 to 70°C, guaranteeing network stability under all conditions.
MOXA TN-4528B-20P-4GP-4GBP-CT-T Certifications

MOXA TN-4528B-20P-4GP-4GBP-CT-T Features
- 20 x 10/100BaseT(X) PoE Ports, M12 D-coded 4-pin Female Connector
- 4 x 10/100/1000BaseT(X) Ports M12 X-coded 8-pin Female Connector With Bypass Relay
- 4 x 10/100/1000BaseT(X) PoE Ports, M12 X-coded 8–pin Female Connector
- PoE Power Budget: 150 W
- -40 to 70°C operating temperature
- Operating Voltage: 16.8 to 137.5 VDC
- Conformal coating
Discover top-notch industrial solutions, and buy the MOXA TN-4528B-20P-4GP-4GBP-CT-T Managed Ethernet Switch with confidence online through the website at a reasonable price, or connect with our sales experts by inquiring in the Middle East (UAE (Dubai), KSA (Al Khobar, Riyadh), and Oman). Our commitment to quality and customer satisfaction remains unparalleled.
| switch and hub : Interface | |
| Number of ports | 28 ports |
| 10/100Mb RJ45 (Megabit) Ports | - |
| 10/100/1000Mb RJ45 (Gigabit) Ports | - |
| 100Mb Fiber optic multi mode (Megabit) Ports | - |
| 100Mb Fiber optic single mode (Megabit) Ports | - |
| 1000Mb SFP Fiber optic (Gigabit) Ports | - |
| 10/100Mb (Megabit) POE Ports | 20 x 10/100BaseT(X) PoE PoE Ports, M12 D-coded 4-pin Female Connector |
| 100Mb SFP Fiber optic (Megabit) Ports | - |
| 10/100/1000Mb (Gigabit) POE Ports | 4 x 10/100/1000BaseT(X) PoE Ports, M12 X-coded 8-pin Female Connector |
| Other ports | 4 x 10/100/1000BaseT(X) Ports M12 X-coded 8-pin Female Connector With Bypass Relay |
| switch and hub : Features and capabilities | |
| Backup | Yes |
| switch and hub : LED Indicators | |
| LED Per Port | PWR1, PWR2, FAULT, STATE, MSTR/HEAD, CPLR/TAIL, Ethernet ports, PoE ports |
| switch and hub : Power Requirements | |
| Power Input Plugin ( Redundant ) | 24/36/48/72/96/110 VDC |
| Input Voltage | 24 to 110 VDC Redundant dual inputs, No. of power inputs: 2 |
| Operating Voltage | 16.8 to 137.5 VDC |
| Input Current | 9.3 A @ 24 V |
| Power Consumption | 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 |
| switch and hub : General | |
| Fan / Fanless | Fanless |
| switch and hub : Switch specifications | |
| Most forwarding speed | - |
| Network working layers | Layer 2 |
| Switch type | EN 50155 Switch |
| Port Aggregation | - |
| switch and hub : Physical Characteristics | |
| Housing | Metal |
| Installation | Wall mounting |
| Operation Humidity | 5 to 95% (non-condensing) |
| Standards and Certifications | EMC, EMI, EMS, Radio Frequency, Railway, Railway Fire Protection, Safety, Salt Spray Test, Shock, Vibration, Green Product, Telcordia SR332 Issue 4 |
| switch and hub : Standards and protocols | |
| Protocols and work standards | STP, RSTP, MSTP, Turbo Ring v2, Link Aggregation, Ring Coupling, Static Port Trunk, LACP, MRP, HTTP/HTTPS, SSH, RADIUS, TACACS+, IEEE 802.3at/af |
| Protocols and management standards | 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 |
| switch and hub : Package Checklist | |
| Hardware installation guide | 1 x quick installation guide |
| Power adapter | - |
| Power cable | 2 x cap, male, metal, for M12 ports (console and USB storage ports, pre-installed on the switch), 4/6/8/10/14 x cap, male, metal, for M12 ports (Ethernet ports, pre-installed on the switch) |
