Generally, the label of an optical module provides the following information: manufacturer, serial number, speed, center wavelength, mode (single-mode/multimode), and transmission distance. There are FE, GE, 10GE, 25GE, 40GE, and 100GE optical modules to suit various interface speeds, as well as. They are critical tools for inventory management, traceability, and operational efficiency. X-linkit, a professional optical module manufacturer, has engineered a comprehensive labeling system that acts as a guardian throughout the entire product lifecycle, from production to end-user. This guide. To determine if your SFP (Small Form-factor Pluggable) module is single mode or multimode, you can look for specific markings or labels on the module itself. Typically, single mode SFP modules are labeled as "SM" or "single mode," while multimode modules may be labeled as "MM" or "multimode.
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