• August 14. 2021

Speaking of PON optical modules, let's first understand what PON is. Generally speaking, PON refers to a passive optical fiber network, which is an important way for broadband access network services to be carried. PON technology originated in 1995. Later, according to the difference between the data link layer and the physical layer, PON technology was gradually subdivided into APON, EPON, and GP...

• August 12. 2021

In recent years, in order to cope with the rapid development of ultra-definition video, cloud storage and cloud computing services, major IT giants and telecom operators around the world are actively preparing to build large data centers. The 10G network can no longer meet the current data transmission needs, and the emergence of the 40G network has greatly eased the pressure on the data center. N...

• August 10. 2021

With the advent of 40G Ethernet, many enterprise users have begun to take full advantage of current 10G network equipment to upgrade to 40G networks. In other words, this involves the use of 40G switches with QSFP+ ports and existing 10G devices (switches and servers) with SFP+ ports. In this article, ETU-LINK will share three common solutions and teach you how to interconnect the switch 40G QSFP+...

• August 05. 2021

In this article, ETU-Link will introduce the connection between the server and the switch and the construction scheme of the campus network. Speaking of the server, in fact, it is a little similar to the computer we use in daily life, which is the equipment to provide computing services. The composition of the server includes processor, hard disk, memory, system bus, etc. As the server needs to re...

• August 03. 2021

With the rapid development of the communication industry and data centers at home and abroad, the demand for optical modules has increased sharply. The production capacity of brand original optical modules is limited and the number is small, so the price is relatively expensive and the user's use cost is high. In view of this market phenomenon, many manufacturers of dual capacity optical modules h...

• July 31. 2021

Fiber optic communication has completely replaced cable communication due to its advantages of high transmission quality, small size and weight. As an important part of fiber optic communication, optical module mainly plays the role of optical signal conversion, converting electrical signals of network equipment into optical signals, so that data can be transmitted in fiber. The following ETU-Link...

• July 29. 2021

In this blog, ETU-LINK will introduce the selection and connection scheme of lower access layer switch and aggregation layer switch. In the three-tier architecture, the role of the access layer is mainly to connect end users to the network. The access layer switch is the equipment of the switching layer. Because the access layer switch needs to connect more end users, the price of the access layer...

• July 28. 2021

The requirements of office building network for service quality, function and security are much higher than those of ordinary residential users. In addition to accessing multiple computers, the office network also undertakes the data transmission tasks of various automation systems, such as monitoring, lighting, air conditioning, etc. Therefore, the office building network should have the characte...

• July 23. 2021

In this article, ETU-LINK will take you to talk about network management switches and non network management switches. With the development of the network, the demand for switches is also increasing. Many switch parameters will be written with network management switches or non network management switches. What is the difference between the two?   The non network management switch is also kno...

• July 21. 2021

As we all know, DAC active cable is mainly used for interconnection between cabinets. Due to the limitation of passive copper cable DAC transmission distance due to material, high frequency loss of connector and other factors, the maximum length of passive copper cable DAC with transmission rate of 10G/25G can only reach 7m, and the maximum length of passive copper cable DAC with transmission rate...

• July 16. 2021

In this article, ETU-LINK will introduce the differences between internal power supply and external power supply optical fiber media converter, as well as their advantages and disadvantages and applications. optical fiber media converter is a kind of Ethernet transmission media conversion unit which can exchange short-distance twisted pair electrical signal and long-distance optical signal. It is ...

• July 13. 2021

The application of optical fiber patch cord is more and more widely, and it is often used in communication room, local area network, cable TV, light into the home and other system networks, but it is relatively fragile, so we need to be extra careful when wiring. So how should the optical fiber patch cord be connected? And what are the precautions in the use process?   Optical fiber patc...