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How to Choose a 10G SFP+ Optical Module
Knowledge Base + 2024.10.18

Walsun's 10G SFP+ optical modules are designed for 10 Gbps data transmission, catering to diverse network needs. These modules support various transmission distances and feature hot-swappable and digital diagnostic monitoring capabilities, ensuring compatibility with over 200 brands and providing customers with flexible options. Additionally, these 10G SFP+ optical modules come in various form factors, including SFP+, XFP, X2, and XENPAK, covering a wide range of applications from data centers to long-distance transmission. 


Overview of Walsun 10G SFP+ Optical Modules


Walsun offers a complete range of 10G SFP+ optical modules that easily meet various network demands with a high-speed transmission rate of 10 Gbps. This series includes different types such as SFP+ and XFP modules and supports both single-mode and multi-mode transmission, ensuring flexibility and adaptability in network connections. To meet the comprehensive compatibility needs of different brand devices, Walsun's 10G SFP+ optical modules provide multiple coding options for a diverse range of choices.


When considering the purchase or deployment of Walsun's 10G SFP+ optical modules, customers should first confirm the compatibility of their devices and check the required transmission distances and wavelength specifications. If used in industrial environments, customers should also consider whether special features, such as extended temperature ranges or rugged enclosures, are needed.


Types of Walsun 10G SFP+ Optical Modules


In modern communication networks, 10G optical modules play a crucial role in high-bandwidth data transmission. Here are some common types of Walsun 10G optical modules and their typical application scenarios:


SFP+ Optical Modules:

    • 10G SR SFP+ (Short-Range): Operates at 850nm wavelength and is suitable for multi-mode fiber, with a transmission distance of up to 300m. Mainly used for short-distance data transmission, such as within data centers.

    • 10G LR SFP+ (Long-Range): Operates at 1310nm wavelength and can transmit over single-mode fiber, with a transmission distance of up to 10km. Suitable for long-distance connections in campus or metropolitan area networks.

    • 10G ER SFP+ (Extended-Range): Uses single-mode fiber and can achieve a transmission distance of up to 40km at a wavelength of 1550nm.

    • 10G ZR SFP+ (Extended-Range): Designed for ultra-long-distance transmission, this type operates at 1550nm wavelength on single-mode fiber, achieving a transmission distance of up to 80km.

XFP Optical Modules


  • 10G SR XFP: Similar to the 10G SR SFP+ optical module, it is suitable for short-distance applications with multi-mode fiber, achieving a transmission distance of up to 300m.

  • 10G LR XFP: Designed for long-distance transmission over single-mode fiber, similar to the 10G LR SFP+ optical module, with a transmission distance of up to 10km.

  • 10G ER XFP: Supports single-mode fiber transmission, with a maximum transmission distance of up to 40km.

  • 10G ZR XFP: Suitable for ultra-long-distance transmission over single-mode fiber, achieving a distance of up to 80km.

X2 and XENPAK Optical Modules


  • 10G SR/LR/ER/ZR X2: Earlier optical modules used for 10G connections, commonly used before the proliferation of SFP+ and XFP modules. They are larger in size but can still be used in older devices that support their form factor.

  • 10G SR/LR/ER/ZR XENPAK: The first generation of 10G modules, designed to be compatible with specific-sized devices.

BIDI Optical Modules


  • 10G BIDI: BIDI (bidirectional) optical modules use a single fiber for both transmitting and receiving signals, effectively reducing the number of fibers needed for connections. These 10G BIDI modules offer various wavelength options and can support transmission distances comparable to traditional SFP+ optical modules, typically covering up to 10km or more, depending on the specific model.

CWDM/DWDM Optical Modules


  • 10G CWDM SFP+: Coarse Wavelength Division Multiplexing optical module, which achieves multiple connections over a single fiber pair by using different wavelengths, suitable for multi-channel transmission.

  • 10G DWDM SFP+: Dense Wavelength Division Multiplexing optical module, similar to CWDM but with narrower wavelength spacing, allowing more channels to fit within the same fiber pair.

Highlights of Walsun 10G Optical Modules


Walsun's 10G optical modules exhibit significant advantages in various network configurations, from internal data center connections to long-distance transmission. Here are some key highlights:


  • Wide Compatibility: Walsun 10G optical modules are designed to be compatible with major brand network devices. They typically support Multi-Source Agreement (MSA) standards, ensuring compatibility with devices that meet the same standards.

  • Various Form Factors: Walsun provides a range of 10G optical modules in different packaging, including SFP+, XFP, X2, and XENPAK, to meet diverse network device and customer needs.

  • Diverse Transmission Distance Options: These 10G optical modules are suitable for short-range (SR), long-range (LR), extended-range (ER), and ultra-long-range (ZR) applications, providing flexibility for network design and expansion.

  • Support for BIDI Technology: Walsun offers optical modules that support BIDI technology, allowing for bidirectional communication over a single fiber, reducing the overall fiber infrastructure requirements and costs.

  • CWDM/DWDM Technology: Walsun's 10G optical modules include both coarse (CWDM) and dense (DWDM) wavelength division multiplexing modules. These technologies can multiplex multiple optical signals over a single fiber pair, increasing fiber capacity without the need for additional fiber lines.

  • High-Speed Transmission: Walsun 10G optical modules can handle data rates of up to 10Gbps, suitable for high-bandwidth applications such as streaming, cloud computing, and storage area networks.

  • Low Power Consumption: Walsun optical modules focus on energy efficiency, reducing the overall power consumption costs for operating network devices.

  • Reliability and Durability: Walsun offers robust 10G optical modules, ensuring reliable performance and longevity, even in harsh network environments.

  • High Quality and Stable Support: Walsun conducts rigorous testing on its 10G SFP+ modules, including wavelength, traffic, and end-face testing, ensuring that each optical module meets industry standards. They also provide after-sales consultation and troubleshooting services.


How to Choose the Right Walsun 10G SFP+ Optical Module


When selecting the appropriate Walsun 10G SFP+ optical module, it is essential to clarify the specific network requirements, including the desired connection distance (such as SR, LR, ER, or ZR) and the type of fiber (multi-mode or single-mode).


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