2.5G SFP to RJ45 Media Converter for GPON, EPON and XPON ONU Stick

Product Overview

The Luleey 2.5G SFP to RJ45 Media Converter is designed for users who need to convert compatible SFP optical access into copper Ethernet output. It provides one 2.5G SFP optical port and one RJ45 copper port, supporting 100M, 1G, and 2.5G network conversion for flexible FTTH and Ethernet deployment.

This 2.5G Media Converter is especially useful for GPON, EPON, and XPON SFP ONU Stick applications. It can work with selected Nokia, Huawei, ODI, 5671A, G-010S-P, and similar SFP ONU Stick modules when the stick module, firmware, ISP authentication, VLAN settings, and network mode are compatible.

Compared with a standard 1G media converter, this Multi-Rate SFP to RJ45 Converter provides higher Ethernet output capability for modern 2.5G broadband, mini PC routers, OpenWRT systems, MikroTik routers, UDM devices, firewall appliances, and multi-gigabit home networks.

The Luleey 2.5G Fiber to Ethernet Converter also includes 4KV port lightning protection, manual mode switching, TTL port access for firmware-related work, RJ45 adaptive operation, and stable copper-to-fiber conversion for practical network deployment.

Features

• 2.5G SFP to RJ45 Media Converter for FTTH and Ethernet conversion
• 1 × 2.5G SFP optical port
• 1 × RJ45 copper Ethernet port
• Supports 100M / 1G / 2.5G conversion
• Supports 100M / 1G / 2.5G Base-T electrical signals
• Supports 2.5G Base-SX / LX optical signal conversion
• Compatible with selected GPON, EPON, and XPON SFP ONU Stick modules
• Supports selected Nokia, Huawei, ODI, 5671A, G-010S-P, and similar ONU stick modules
• Manual switch for SFP 2.5G and SFP 1G operating modes
• RJ45 supports adaptive 100M / 1000M / 2500M operation
• Built-in TTL port for firmware access and advanced maintenance
• 4KV port lightning protection for improved reliability
• Supports rate, MDI, MDI-X, full-duplex, and half-duplex adaptation
• Plug-and-play deployment for simple installation
• Suitable for FTTH broadband, home lab, router WAN, firewall, and 2.5G Ethernet upgrade
• Factory tested by Luleey for stable operation

Applications

• GPON SFP ONU Stick to RJ45 Ethernet
• EPON SFP ONU Stick to RJ45 Ethernet
• XPON SFP ONU Stick Deployment
• 2.5G FTTH Broadband Access
• 2.5G Fiber to Ethernet Conversion
• SFP ONU Stick Testing
• Nokia / Huawei / ODI ONU Stick Applications
• OpenWRT Router WAN Connection
• MikroTik Router FTTH Setup
• UDM / UDM SE Broadband Integration
• Mini PC Firewall WAN Port
• Home Lab 2.5G Networking
• 2.5G Router and Switch Connection
• WiFi 6 / WiFi 6E AP Backhaul
• Small Office Fiber Access

Specifications

Why Use a 2.5G SFP to RJ45 Media Converter?

Many FTTH users, home lab builders, and network engineers want to use an SFP ONU Stick or fiber SFP connection with routers, firewalls, switches, or mini PCs that only provide RJ45 Ethernet ports.

A 2.5G SFP to RJ45 Media Converter solves this problem by providing an SFP host interface on one side and RJ45 Ethernet output on the other side.

This is useful when connecting:

• SFP ONU Stick to RJ45 router
• GPON Stick to Ethernet WAN port
• EPON Stick to copper Ethernet network
• XPON Stick to OpenWRT firewall
• Fiber access to mini PC router
• 2.5G broadband to RJ45 network equipment
• Multi-gigabit home network devices

Special Use Case: SFP ONU Stick Converter

This product can be used as an SFP ONU Stick Converter in selected compatible environments. It is suitable for users who want to convert a compatible GPON, EPON, or XPON SFP ONU Stick into RJ45 Ethernet output.

This application is useful for:

• FTTH stick module testing
• Router WAN connection
• OpenWRT deployment
• MikroTik deployment
• UDM / UDM SE broadband setup
• Home lab fiber access
• ISP configuration testing
• ONU stick replacement testing

Before use, engineers should confirm the ONU Stick model, OLT compatibility, ISP authentication method, VLAN configuration, and required SFP host mode.

Manual Mode Switching

The Luleey 2.5G SFP to RJ45 Media Converter supports manual mode switching for different deployment needs.

This manual switch is useful because different SFP modules or ONU sticks may require different host modes. For GPON, EPON, or XPON stick usage, choosing the correct mode is important for stable recognition and normal operation.

2.5G Media Converter vs 1G Media Converter

A 1G media converter is suitable for standard Gigabit Ethernet extension. However, many modern FTTH networks, routers, mini PCs, and access devices now support 2.5G Ethernet.

Choose this 2.5G Media Converter when your network requires higher-than-Gigabit RJ45 output but does not require a full 10G media converter.

Important Compatibility Notes

This product can support selected SFP ONU Stick applications, but it is not a universal adapter for every ONU Stick or every ISP network.

Before deployment, confirm:

• Whether the ONU Stick supports the required SFP host mode
• Whether the module requires 1G, 2.5G, SGMII, or 1000BASE-X mode
• Whether the media converter can provide enough power for the stick module
• Whether the ONU Stick firmware supports the target OLT
• Whether ISP authentication settings are correct
• Whether VLAN settings are correct
• Whether the RJ45 side device supports the required Ethernet speed
• Whether the manual switch is set to the correct mode
• Whether the optical signal level is within range

The media converter provides the SFP-to-RJ45 hardware platform, but the inserted ONU Stick and network service must also be compatible.

What is a 2.5G SFP to RJ45 Media Converter?

A 2.5G SFP to RJ45 Media Converter converts compatible SFP optical connections into RJ45 Ethernet output, supporting 100M, 1G, and 2.5G network deployment.

What is this 2.5G Media Converter used for?

It is used for FTTH broadband access, SFP ONU Stick conversion, router WAN connection, OpenWRT systems, MikroTik routers, UDM setups, mini PC firewalls, and 2.5G Ethernet upgrades.

Can this product be used with GPON ONU Stick?

Yes. It can be used with selected compatible GPON SFP ONU Stick modules, depending on module compatibility, firmware, ISP authentication, VLAN settings, and OLT environment.

Can this product be used with EPON or XPON Stick?

Yes. It can be used with selected compatible EPON and XPON SFP ONU Stick modules when the module and network configuration are compatible.

Is it compatible with Nokia, Huawei, and ODI ONU sticks?

This product is designed for selected Nokia, Huawei, ODI, 5671A, G-010S-P, and similar SFP ONU Stick applications. Compatibility should be confirmed before deployment.

What is the RJ45 port speed?

The RJ45 port supports adaptive 100M, 1000M, and 2500M operation depending on the selected mode and connected device.

What is the SFP port speed?

The SFP port supports 2.5G mode and 1G mode through manual switching.

Does it support 4KV lightning protection?

Yes. The product includes 4KV port lightning protection for improved reliability.

Does it have a TTL port?

Yes. It includes a TTL port for firmware access and advanced maintenance work.

Is this a universal ONT replacement?

No. It can support selected SFP ONU Stick deployment, but ISP authentication, OLT compatibility, VLAN settings, and ONU Stick firmware must be confirmed.

Can I use it with a 10G SFP+ module?

No. This product is a 2.5G SFP to RJ45 Media Converter. For 10G SFP+ modules, use a 10G SFP+ to RJ45 media converter.

Why choose Luleey LL-25SFMC?

The Luleey LL-25SFMC provides 2.5G SFP to RJ45 conversion, selected GPON / EPON / XPON ONU Stick compatibility, manual mode switching, 4KV port lightning protection, TTL access, and practical deployment for FTTH, home lab, OpenWRT, MikroTik, UDM, and 2.5G Ethernet networks.