Moxa TN-4908-ETBN-F-4GPoE-4GTXBP-WV-CT-T | TN-4908 ETBN Industrial Secure Router, 4x PoE+, 4x Bypass, 24-110VDC

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SKU:TN-4908-ETBN-F-4GPoE-4GTXBP-WV-CT-T

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Description

The TN-4908 ETBN industrial secure firewall router is built for rolling stock and rail networking deployments that follow the IEC 61375 train backbone standard. This variant provides 8 Gigabit ports, including 4 PoE+ Gigabit Ethernet ports with a 50W budget and 4 Gigabit Ethernet ports with bypass relay, so critical links can stay connected through a power or device fault. It accepts a 24-110VDC input, carries an IP40 rating, operates from -40 to 70°C and is conformal coated for demanding environments.

The PoE+ ports can power compatible devices such as IP cameras and passenger information equipment directly from the router, reducing cabling and separate power supplies. The conformal coating and wide-temperature design help protect the unit against humidity, dust and vibration-related wear, making it suited to onboard and trackside installations that need dependable routing and firewall functions in one compact industrial platform.

Features

- Secure firewall router for IEC 61375 train backbone networks
- 4 PoE+ ports power connected devices without separate injectors
- Bypass relay ports maintain link continuity during power loss
- Wide 24-110VDC power input suits rolling stock supplies
- Conformal coating for added resistance in harsh environments
- Extended -40 to 70°C operating temperature range

Warranty

Moxa offers varying warranty periods depending on the product category:
• 5-Year Warranty: Applies to most industrial networking and connectivity products, including Ethernet switches, routers, wireless devices, serial converters, protocol gateways, and USB hubs.
• 3-Year Warranty: Covers x86-based industrial computers and panel PCs.
• 1-Year Warranty: Applies to external batteries, LCD panels, power adapters, antennas, and other select accessories.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Moxa products. Contact our team to explore options that align with your organization's needs.
https://www.moxa.com/en/support/repair-and-warranty/warranty-policy

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Standard: IEC 61375 ETBN
- Ports: 8x Gigabit Ethernet
- PoE: 4x PoE+ Gigabit ports, 50W power budget
- Bypass: 4x Gigabit ports with bypass relay
- Power input: 24-110VDC
- Ingress protection: IP40
- Operating temperature: -40 to 70°C
- Protection: Conformal coating

FAQs

Q: What does ETBN mean on the TN-4908?
A: ETBN stands for Ethernet Train Backbone Node, a device role defined in the IEC 61375 standard for train-wide Ethernet networks.

Q: How many PoE+ ports does this model have?
A: It has 4 PoE+ Gigabit Ethernet ports with a 50W power budget for powering connected devices.

Q: What is the purpose of the bypass relay ports?
A: The 4 Gigabit ports with bypass relay keep a network path connected if the unit loses power, helping maintain link continuity along the network.

Q: What power input does it accept?
A: It accepts a 24-110VDC input, which suits typical rolling stock and industrial DC supplies.

Q: What temperature range can it operate in?
A: It is rated for operation from -40 to 70°C.

Q: Is this model conformal coated?
A: Yes. This variant has conformal coating for added protection in harsh environments.

Datasheet

This product has a detailed PDF datasheet available. Open PDF datasheet in a new tab .

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Moxa TN-4908-ETBN-F-4GPoE-4GTXBP-WV-CT-T | TN-4908 ETBN Industrial Secure Router, 4x PoE+, 4x Bypass, 24-110VDC