What color is the optical module pull ring

① Multimode fiber optic module: The pull tap is black, corresponding to a wavelength of 850nm, suitable for short-distance transmission (such as less than 2km). This article prov...

Guide
Nov 13, 2025

How to Distinguish the Wavelength by the Color of the Pull Ring of the

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

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Guide
Sep 01, 2025

How to Identify the Wavelength of SFP CWDM Optical Modules

For a conventional optical module, we can easily judge the wavelength of the optical modulefrom the color of the latch ring. For example, the black pull ring represents 850nm, and the blue pull ring

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Guide
Nov 15, 2025

SFP optical module configuration

SFP transceiver module configuration are: lasers (including transmitter TOSA with the receiver ROSA) and board composition IC and external accessories and external accessories, there are housing,

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Guide
Sep 06, 2025

How to Identify Optical Transceiver Wavelengths by Pull

One key method of visual identification is the color of the transceiver''s pull tab, which corresponds to its wavelength. This article provides a professional

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Guide
May 15, 2026

The meaning of the optical module with different color

The pull ring of the optical module adopts the function of using different colors Their main function is to identify the type, wavelength, and function, allowing

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Guide
Mar 31, 2026

Distinguish the wavelength by the color of the pull ring of

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

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Guide
Jul 31, 2025

Meaning of Optical Module Pull Tap Colors

The color of the optical module pull tap is not just for aesthetics. Its core function is to quickly identify the module''s applicable fiber type, wavelength, and function. This helps technicians intuitively determine

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Guide
Aug 01, 2025

Understanding SFP Modules: Wavelength and Color Codes

Each SFP module operates at a specific wavelength, and to avoid confusion, manufacturers use color-coded pull rings for easy identification.

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Guide
May 13, 2026

How to Distinguish the Wavelength by the Color of the

How to Distinguish the Wavelength by the Color of the Pull Ring of the Optical Module

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Guide
Nov 05, 2025

Introduction of SFP Optical Module| Four-Faith

If the bare module is not marked, it is easy to be confused. Generally, manufacturers will distinguish the color of the pull ring. For example, the black

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Guide
Jun 28, 2025

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Guide
Jun 16, 2026

Meaning of Optical Module Pull Tap Colors

5. QSFP+ Optical Module Pull Ring Colors 40G QSFP+ 850nm SR4 150m optical module with a beige pull-tab design, designed for short-distance, high-speed data transmission. III. Notes on

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Guide
Aug 13, 2025

How to Identify Optical Transceiver Wavelengths by Pull-Tab Color:

In fiber optic networks, accurately identifying the wavelength of an optical transceiver module is essential for ensuring optimal network performance and reliability. One of the most

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Guide
Jan 06, 2026

How to identify the wavelength of SFP CWDM Optical module through

This blog Nufiber will show you how to identify the wavelength of CWDM optical module through the color of the pull ring. We all know that CWDM has a total of 12 wavelengths, with a full

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Guide
Mar 22, 2026

SFP optical module

The color of the pull ring or external body is black. Single-mode The size of single-mode fiber is 9-10/125µm, and it has unlimited bandwidth and lower loss than multi-mode fiber. The single

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Guide
Dec 28, 2025

Detailed analysis of SFP module interface indicators and components

SFP modules consist of: laser: including transmitter TOSA and receiver ROSA,circuit board IC, and the external parts include: shell, base, PCBA, pull ring, clasp, unlocking piece, rubber

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Guide
Jan 20, 2026

Understanding Transceiver Pull Tab Colors:

Learn how to identify optical transceivers by pull tab color. This guide explains wavelength, distance, and fiber compatibility for SFP, QSFP, BIDI &

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Guide
Nov 07, 2025

Optical Module Pull Tab Colors: The Ultimate Guide to

Description: Decode optical module pull tab colors for SFP, QSFP+, BIDI, and CWDM modules. Learn how color identifies fiber type, wavelength, and

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Guide
Mar 10, 2026

Meaning of Optical Module Pull Tap Colors

Optical module pull tab colors serve as a visual language in network operations and maintenance. Their core value lies in simplifying module selection and troubleshooting. Colors can

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Guide
Sep 07, 2025

The meaning of the optical module with different color pull ring

Color universality: The same color may correspond to different wavelengths in different scenarios (such as green representing ultra long distance in conventional modules and 1530nm in CWDM).

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Guide
Aug 06, 2025

How to Distinguish the Wavelength by the Color of the Pull Ring of the

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

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Guide
Aug 21, 2025

Methods For Distinguishing Optical Module Types

Distinguish by the Color of Module Pull Tabs. For modules with distinctly different pull tab colors, you can preliminarily identify their types based on relevant industry standards.

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