• April 26. 2022

Single-mode (SM) fiber and multimode (MM) fiber are the two most commonly used transmission media in fiber optic communication, data centers, and enterprise networks. Choosing the right fiber type directly affects transmission speed, distance, stability, and cost. This article will explain their definitions, differences, and applications in detail. What Is Multimode (MM) Fiber? MM fiber is a fiber...

• April 18. 2022

When selecting optical modules, we should not only consider the stability and reliability of optical module functions, but also consider the price and quality, as well as whether they meet the requirements of network equipment compatibility and data transmission. Here, ETU-LINK will introduce which optical module parameters should be explained to the manufacturer when selecting the optic...

• April 08. 2022

When selecting optical modules, we should not only consider the stability and reliability of optical module functions, but also consider the price and quality, as well as whether they meet the requirements of network equipment compatibility and data transmission. Here, ETU-LINK will introduce which optical module parameters should be explained to the manufacturer when selecting the optic...

• March 19. 2022

When selecting or configuring a network switch, you often encounter ports labeled G, F, E, and S. Understanding the differences between these port types is essential for proper network design, cable selection, and optical module compatibility. Below, we break down each port type in detail. 1. What Is an S Port on a Switch? S port is fully called serial interface, also known as high-speed asynchron...

• March 17. 2022

The intelligent building network is responsible for the data transmission tasks of various building automation systems, such as lighting, air conditioning, electrical, monitoring, computers, wireless devices, etc. In this blog, ETU-LINK will introduce the networking solution of intelligent building. As the intelligent buildings are relatively dense and the business volume is relatively large,...

• March 10. 2022

In this blog, ETU-Link will introduce OM5 optical fiber patch cord. In order to distinguish different optical fiber patch cord, different colors outer sheath are used.For non-military purposes, single mode optical fibers generally use yellow outer sheath. In the multimode optical fiber, OM1 and OM2 are orange, OM3 and OM4 are aqua blue, and OM5 is aqua green. After understanding the color appearan...

• January 19. 2022

Medium and long-distance optical modules (10G ER/80G ZR, 25G ER, 50G long-haul transceivers) integrate built-in signal amplifiers including APD avalanche photodiode and TIA transimpedance amplifier. This article compares traditional optical regenerators and internal amplifier schemes, explains amplification working principle, circuit automatic gain control and practical application value for metro...

• December 02. 2021

In the 1990s and early 2000s, network cards were generally used in computers, and they were slowly used in servers and workstations until later. During this period, due to the maturity of wireless technology and the popularization of wireless networks, wireless network cards were gradually widely used on computers. However, due to the reliability of the connection, the wired network card...