• August 28. 2021

Fiber patch cords are widely used in the field of optical communications and optoelectronics. Insertion loss and return loss are two important indicators of fiber patch cords. Insertion loss will weaken the optical power in the optical link and reduce receiving sensitivity, while return loss will change the spectral width of the laser diode of the light source, introduce noise to the sys...

• 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...

• 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 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...

• July 09. 2021

Optical fiber testing is divided into primary testing and secondary testing. The primary testing is also the basic testing. It mainly tests the insertion loss (that is, attenuation) of the optical fiber and the length of the optical fiber link. No matter it is single-mode fiber or multi-mode fiber, they are all made of glass fiber, and natural loss will inevitably occur when optical pulse sig...