In order to distinguish optical modules, different manufacturers can distinguish them by their wavelength, transmission distance, packaging, etc. Do you know what other methods to distinguish them?
This article will introduce how to distinguish the wavelength of the optical module by the color of the pull ring.
Optical Module Wavelength
Commonly used optical modules have four wavelengths, 850nm, 1310nm, 1490nm, and 1550nm. Among them, the color of the pull ring corresponding to 850nm of the Gigabit SFP module is black, the color of the pull ring corresponding to 1310nm is blue, and the color of the pull ring of 1490nm is purple, but the color of the pull ring of 1550nm is usually yellow. Distance over 80km optical module usually uses the green pull ring.
Specific data is shown in the table:
CWDM optical module, the color of its pull ring is colorful. There are 18 wavelengths in total, and the band is divided into prewave and postwave, the prewave is 1270nm-1450nm; the postwave is 1470nm-1610nm.
The specific wavelength corresponding color of the pull ring:
Dual-fiber
10G dual-fiber optical module mainly has three wavelengths: 850nm, 1310nm, and 1550nm. The color of the pull ring corresponding to the wavelength of 850nm is black, the color of the pull ring of 1310nm is blue, the color of the pull ring of 1550nm and 40KM is red, and the color of the pull ring of 1550nm and 80KM is red or white.
Single-fiber
10G single fiber optical module wavelength and pull ring color are 1270nm (black), 1330nm (blue), 1490nm (purple), and 1550nm (yellow).
To sum up, the above is the whole content of the color of the optic module pull ring. If you want to know more about optical modules, please like and follow!
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