SFP-10G-BX10 vs BX20 vs BX40 vs BX60 vs BX80 vs BX100: Complete Guide to 10G BiDi SFP+ Transceivers

Introduction

When upgrading a fiber network to 10 Gigabit Ethernet, many engineers face the same question:

Should I choose SFP-10G-BX10, BX20, BX40, BX60, BX80, or BX100?

All six modules belong to the 10G BiDi SFP+ Transceiver family and use WDM technology to transmit and receive data over a single strand of single mode fiber. However, each model is optimized for different transmission distances and network environments.

In this guide, we compare the entire BX series and explain how to choose the correct module for your project.

What Is a 10G BiDi SFP+ Transceiver?

A 10G BiDi SFP+ Transceiver uses Wavelength Division Multiplexing (WDM) technology to transmit and receive optical signals on different wavelengths through a single fiber.

Compared with traditional duplex SFP+ modules:

Advantages

• Uses only one fiber strand
• Reduces cabling costs
• Saves fiber resources
• Simplifies installation
• Ideal for limited fiber environments

For many enterprise and telecom networks, a Single Fiber 10G Transceiver can reduce fiber infrastructure requirements by up to 50%.

BX Series Comparison

Model	Distance	Typical Application
LL-SFP-10G-BX10	10km	Campus Networks
LL-SFP-10G-BX20	20km	Enterprise Access
LL-SFP-10G-BX40	40km	Metro Ethernet
LL-SFP-10G-BX60	60km	ISP Access
LL-SFP-10G-BX80	80km	Regional Backbone
LL-SFP-10G-BX100	100km	Carrier Backbone

LL-SFP-10G-BX10

The LL-SFP-10G-BX10 supports transmission distances up to 10km.

Best For

• Office Buildings
• Campus Networks
• Enterprise LANs
• FTTB Projects

Typical Fiber Loss

• Fiber attenuation: 3–4 dB
• Total link loss: 5–6 dB

Product Link

👉 View LL-SFP-10G-BX10 Product Page

LL-SFP-10G-BX20

The LL-SFP-10G-BX20 is designed for medium-distance fiber deployments.

Best For

• Enterprise Access Networks
• Industrial Ethernet
• Business Broadband

Typical Fiber Loss

• Fiber attenuation: 6–7 dB
• Total link loss: 7–9 dB

Product Link

👉 View LL-SFP-10G-BX20 Product Page

LL-SFP-10G-BX40

The LL-SFP-10G-BX40 is one of the most popular options for metropolitan networks.

Best For

• Metro Ethernet
• Campus Interconnection
• Data Center Interconnect

Typical Fiber Loss

• Fiber attenuation: 10–14 dB
• Total link loss: 12–16 dB

Product Link

👉 View LL-SFP-10G-BX40 Product Page

LL-SFP-10G-BX60

The LL-SFP-10G-BX60 is commonly used in telecom aggregation layers.

Best For

• ISP Networks
• Telecom Aggregation
• Enterprise WAN

Typical Fiber Loss

• Fiber attenuation: 15–18 dB
• Total link loss: 17–21 dB

Product Link

👉 View LL-SFP-10G-BX60 Product Page

LL-SFP-10G-BX80

The LL-SFP-10G-BX80 is designed for long-distance optical transport.

Best For

• Regional Backbone Networks
• Government Projects
• Utility Networks

Typical Fiber Loss

• Fiber attenuation: 20–24 dB
• Total link loss: 22–27 dB

Product Link

👉 View LL-SFP-10G-BX80 Product Page

LL-SFP-10G-BX100

The LL-SFP-10G-BX100 provides the longest transmission distance in the BX series.

Best For

• Carrier Backbone
• Telecom Transport Networks
• Critical Infrastructure

Typical Fiber Loss

• Fiber attenuation: 25–30 dB
• Total link loss: 28–32 dB

Before deploying 100km links, engineers should always calculate optical power budget and receiver sensitivity.

Product Link

👉 View LL-SFP-10G-BX100 Product Page

How to Choose the Right BX Module?

Choose BX10 if:

• Fiber distance is below 10km
• Enterprise or campus deployment

Choose BX20 if:

• Distance is between 10km and 20km
• Access network deployment

Choose BX40 if:

• Metro Ethernet network
• Data center interconnect

Choose BX60 if:

• ISP or telecom aggregation

Choose BX80 if:

• Regional backbone deployment

Choose BX100 if:

• Long-haul carrier-grade network

Frequently Asked Questions

Can two BX modules of the same wavelength be connected together?

No. BiDi modules must always be deployed in complementary wavelength pairs.

Do all BX modules support DDM?

Yes. The entire Luleey BX series supports Digital Diagnostic Monitoring.

Can BX modules work with Cisco switches?

Yes. Compatible coding is available for Cisco, MikroTik, Ubiquiti, Juniper, Aruba, Huawei, HPE, and many other platforms.

What fiber type is required?

Single Mode Fiber (SMF) with LC simplex connectivity.

Conclusion

The LL-SFP-10G-BX10, LL-SFP-10G-BX20, LL-SFP-10G-BX40, LL-SFP-10G-BX60, LL-SFP-10G-BX80, and LL-SFP-10G-BX100 all provide reliable 10G BiDi SFP+ Transceiver solutions for different network distances.

By selecting the correct module based on transmission distance and optical budget, network operators can maximize fiber utilization, reduce deployment costs, and build scalable 10 Gigabit Ethernet infrastructure.