• September 22. 2025

Every optical module of ETU-LINK Optical Communication carries the confidence of "factory-quality"! In the field of communication equipment, the quality of optical modules is directly related to the stability and security of the entire communication link. We always regard the testing link as the core of quality control, using strict standards and comprehensive guarantees to ensure that every custo...

• September 18. 2025

CWDM and DWDM, the "two brothers" in fiber optic communications, differ by only one letter in their names, but the difference is huge! Today, this article will explain the core differences and help you quickly distinguish them. Ⅰ. Transmission Capacity: Worlds Apart Technically, both rely on wavelength division multiplexing (WDM) technology, but they differ significantly in key parameters. DWDM (D...

• September 11. 2025

Did you know? In the world of optical transceivers, there's a subtle yet crucial role: the gold finger. Don't underestimate these glittering golden contacts at the end of an optical module; each one carries the weight of a "bridge for data transmission." When an optical module is inserted into a device, the gold finger engages directly with the connector, ensuring reliable transmission of electric...

• September 09. 2025

In the field of optical fiber communications, wavelength division multiplexing (WDM) technology is a key means of increasing optical fiber transmission capacity. As a key offshoot of WDM technology, CWDM (Coarse Wavelength Division Multiplexing) has been widely used in specific scenarios due to its low cost and ease of deployment. Below, ETU will provide a detailed analysis of CWDM, including its ...

• September 04. 2025

Despite the continuous advancement of communication technology, some "special battlefields" still face pain points in signal transmission: intermittent equipment monitoring data in remote mining areas, delayed and stagnant transmission of operation and maintenance instructions for highland wind power plants, and cross-strait emergency communications often limited by distance. In response to this, ...

• September 01. 2025

As core components of optical communication systems, the proper installation and use of optical modules directly impacts network stability. This article systematically identifies common anomalies during optical module installation. Combining hardware principles with practical experience, it provides step-by-step solutions and key considerations to help engineers efficiently troubleshoot. Ⅰ. Common...

• August 27. 2025

In the field of optical fiber communication, the attenuation operation of long-distance modules is one of the key links to ensure the stable operation of the communication system. This operation is not carried out arbitrarily, but is a necessary measure after comprehensive consideration of many factors such as signal transmission rules, equipment characteristics and actual application requirements...

• August 21. 2025

In scenarios like 5G live streaming, AI computing, and cloud storage, data flows at a rate of several terabytes per second. The unsung heroes behind this "data voyage" are optical modules—the "optical communication translators" that precisely convert electrical and optical signals. The packaging technology of optical modules is the "genetic code" that determines their performance, cost, and applic...

• August 14. 2025

At a time when network technology is changing rapidly, 10G networks are gradually becoming popular among the general public, and 10G optical modules, as key components for achieving high-speed optical fiber transmission, are of great importance. ETU-Link 10G SFP+ optical modules use the latest mainstream optical chip technology and packaging technology to achieve lower power consumption and lower ...

• August 12. 2025

With the increasing demand for high-speed optical communications in data centers, enterprise networks, and carrier networks, 10G BiDi SFP+ optical modules have become a mainstream short-haul optical communication solution due to their single-fiber bidirectional (BiDi) transmission characteristics, fiber resource savings, and flexible deployment. In BiDi optical modules, SC (Subscriber Connector) a...

• August 06. 2025

In the complex network world of data centers, optical modules play a crucial role, efficiently converting electrical and optical signals to ensure stable, high-speed data transmission across fiber optic networks. The color of the small pull tab on an optical module, while seemingly insignificant, hides a wealth of crucial information. Let's uncover its mysteries with Xiaoyi . I. The Core Identific...

• August 04. 2025

In today's rapidly developing communications sector, electrical-to-optical transceivers, as key components for data transmission, are crucial for various network applications due to their performance and applicability. With a precise grasp of market demand and a deep understanding of chip technology, ETU-Link has meticulously crafted a series of copper SFP module transceivers designed to provide u...