• October 17. 2020

As the conversion equipment of photoelectric signal, optical fiber media converter has become one of the important technical equipment in the field of social communication. Optical fiber media converter is a kind of communication equipment which can convert short distance Ethernet electric signal and long distance optical signal. One end of it is optical fiber interface and the other is Ethernet i...

• February 04. 2021

With people’s urgent demand for information resource sharing and information exchange, prompting the rapid development of network technology, universities are also preparing to build campus networks, hoping to improve teaching, management, and scientific research through the construction of campus networks. Campus network applications can be divided into three parts: e-learning (multimedia classro...

• March 02. 2022

In this blog, ETU-LINK will introduce the flame retardant grades of optical cables. The flame retardant grades of optical cables can be divided into three types, OFN, OFNR and OFNP. Before talking about flame retardant grades, you can first understand LSZH (low smoke halogen free). As early as the mid-1980s, halogen (especially brominated) flame retardant polymer systems were widely used because o...

• July 29. 2022

Communication has existed since the primitive society. Beacon fires and flying pigeons were common communication methods in ancient times. Later, after the industrial revolution, telegraph and telephone appeared. Until the modern optical network, communication technology has been developing continuously. However, the three basic elements to complete the information transmission, namely the source,...

• October 29. 2022

This blog ETU -LINK will take you to read what is WDM, before that we first to get to know why the WDM technology, it appears from the background of the Internet, development rapidly in a short few decades, so operators urgently needs a lot of network capacity to meet growing customer service requirements.   For network expansion, simply increase the transmission capacity linearly by increasi...

• May 06. 2023

According to the customer's feedback, how should we analyze and solve the issue that the switch and optical module are incompatible or cannot be used? In this article, ETU-LINK proposes the following solutions to this issue.   Optical fiber patch cord collocation problem If the optical module does not respond to being inserted into the network cord of the switch, check whether the optical fib...

• May 16. 2023

Before understanding the differences between single mode and multimode, we need to know that light propagates in a fiber as a set of independent beams, which propagate at a specific angle to the fiber axis and are called modes. We can distinguish between single mode and multimode by transmission mode. Single mode fiber supports one mode, while multimode fiber supports multiple modes. Below, ETU-LI...

• April 10. 2024

With the progress of science and technology and the rapid development of data centers, the demand for high-speed optical communication modules is also growing. As a new type of high-speed optical communication module, 100G QSFP28 ER4 optical module is gradually receiving wide attention. In the previous articles, we have learned about 40G ER4 series optical module products, and today, we ...