How to Choose the Right 10G SFP+ Module: SR, LR, or LRM?

What is a 10G SFP+ Optical Module?

10G SFP+ optical modules are hot-swappable transceivers used for 10Gbps Ethernet and Fibre Channel networks. There are various models available in the market, such as the SFP-10G-SR for multi-mode transmission, the SFP-10G-LR for single-mode transmission, and the SFP-10G-LRM that can be used for both single-mode and multi-mode transmission. This article will introduce the differences between SFP-10G-LRM, SFP-10G-SR, and SFP-10G-LR optical modules, helping you choose the best SFP module to improve your network transmission performance.

Main Differences Between SFP-10G-LRM, SFP-10G-SR, and SFP-10G-LR Optical Modules

Here are the main differences between SFP-10G-LRM, SFP-10G-SR, and SFP-10G-LR optical modules:

• SFP-10G-SR:
• SFP-10G-LR:
• SFP-10G-LRM:

How to Choose an SFP Module When Deploying a Network?

Although these three types of 10G SFP+ optical modules differ in wavelength, fiber type, and transmission distance, they all meet different network needs. Below is a comparison between the SFP-10G-LRM and SFP-10G-SR optical modules, as well as the SFP-10G-LRM and SFP-10G-LR optical modules.

• Comparison Between SFP-10G-SR and SFP-10G-LRM:
• Is SFP-10G-SR Compatible with 1GB?

Detailed Comparison

Here is a detailed comparison between the SFP-10G-SR and SFP-10G-LRM optical modules:

• SFP-10G-SR:
• SFP-10G-LRM:

Comparison Between SFP-10G-LRM and SFP-10G-LR

• The SFP-10G-LR optical module is suitable for long-distance communications up to 10 kilometers, such as interconnecting buildings in a large campus and creating a metropolitan area network (MAN).
• The SFP-10G-LRM optical module can also support single-mode transmission with a transmission distance up to 300 meters.
• Therefore, for transmissions within 300 meters, the SFP-10G-LRM optical module is a more economical and effective solution. For transmissions between 300 meters and 2 kilometers, the SFP-10G-LRM2 optical module is more suitable. For transmissions of 2 to 10 kilometers, the SFP-10G-LR optical module is the only option.