• May 27. 2023

Recently, 400G Ethernet has become a hot topic in the communication industry. It is both an outlet and a challenge. Network equipment manufacturers have launched 400G switches, and optical communication products have also launched 400G optical modules. In this article, ETU-LINK is about the impact of the emergence of 400G switches and 400G optical modules on data centers.   First of all,...

• May 26. 2023

Media converter are Ethernet transmission conversion units that convert electrical signals and optical signals to each other, so they are also called photoelectric converters. The main purpose of using Media converter is to extend the transmission distance of the signal. Since the twisted pair wires used in our daily life, that is, network cables, have a very limited transmission distance, if...

• May 23. 2023

Multimode fiber has been developed from OM1 to OM5 now, so which one is better among OM2, OM3, and OM4 multimode fiber? In this blog, ETU-LINK will explain to you.   Multimode fiber is mainly used for optical transmission with a wavelength of 850nm. Here, the two points of effective mode bandwidth and full injection bandwidth can be compared separately. First, let us understand what bandwidth...

• May 19. 2023

The previous storage technology only uses the storage device as an auxiliary device of the server. The large-capacity data exchange between servers can only rely on traditional networks, and cannot adapt to the development of IT technology in terms of speed, security, cross-platform sharing, and unlimited expansion. Under such circumstances, SAN technology came into being. fiber Channel SCSI ...

• May 16. 2023

Single-mode (SMF) and multi-mode (MMF) fiber jumpers are the most widely used passive cabling in data centers, campus networks and telecom MAN. This article elaborates 5 core technical differences, TIA standard jacket color rules, OM/OS fiber grade classification, matching optical module standards and engineering selection tips for network engineers and procurement staff. Before understanding the ...

• May 12. 2023

Why don’t data centers use multi-mode OM2 fiber anymore? In this article, ETU-Link will reveal the answer for you. Firstly, OM2 is mainly a traditional 50/125 micron graded index multi-mode fiber. OM2 fiber is based on LED light source in terms of standard and design, and has low bandwidth requirements. It cooperates with LED to transmit 1000Mbit/s and lower rates. OM2 will withdraw from the data ...

• May 05. 2023

With the rapid development of the communication industry and data centers at home and abroad, the demand for optical modules has increased sharply. In addition to the original optical modules of equipment manufacturers, there are also third-party optical module manufacturers. So how should we choose optical modules? In this article, ETU-LINK will introduce to you what factors we need to consider w...

• April 07. 2023

In this article, ETU-LINK will analyze common problems related to 40G QSFP+ optical modules, 40G QSFP+ AOC active optical cables, and 40G QSFP+ DAC high-speed cables. Q1：Can a 40G optical module be connected with a 10G optical module? A1: Not all 40G optical modules can be connected to 10G optical modules, only 4*10G parallel transmission optical modules can be connected to 10G optical modules, fo...

• December 01. 2022

In fiber optic networking, many users ask: What are single fiber and dual fiber optical modules? What is the difference between them? How to choose single fiber vs dual fiber for my project? This article explains definition, structure, wavelength, application, compatibility, and selection rules to help you use them correctly. What are single fiber optical modules and dual fiber optical modules?&nb...

• September 07. 2022

Fiber patch cords are key components in fiber optic communication, data center cabling, and enterprise network interconnection. For beginners and network engineers, understanding simplex and duplex fiber patch cords is essential for correct selection and deployment. What Do Simplex and Duplex Mean in Fiber Patch Cords? When we start to learn fiber patch cord, may be many partners do not know what ...