• 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...

• September 16. 2021

Optical modules can be classified into single-fiber and dual-fiber according to the number of interfaces. Dual-fiber optical modules have two optical fiber interfaces, and single-fiber optical modules have only one optical fiber interface. In addition to the difference in optical fiber interfaces, the use of the two is also different. Therefore, ETU-LINK will introduce the precautions for the use ...

• September 28. 2021

With the gradual improvement of living standards, the concept of networked and intelligent buildings is no longer unfamiliar to everyone. In intelligent buildings, we can not only exchange data information quickly, control lights and adjust air conditioning through the network system, but also build intelligent scenes such as network monitoring systems and intelligent parking systems. In order to ...

• October 23. 2021

This blog ETU-LINK takes everyone to understand the difference between optical fiber, copper cable and twisted pair. First of all, let’s understand the twisted pair. The twisted pair is made up of multiple groups of insulated copper wires intertwined. The internal medium of the twisted-pair cable is also copper wire, and the internal transmission is an electrical signal. According to the principle...

• November 05. 2021

At present, MPO patch cord is widely used in high-speed and high-density data center wiring, and its quality determines the stability and sustainability of the whole data center network. So what factors should we consider when choosing MPO patch cord? Today ETU-LINK will introduce the Purchasing Guide of MPO patch cord.     1. Choose a patch cord with a small insertio...

• November 19. 2021

In today's Internet era, both enterprise network deployment and data center construction are inseparable from optical transceivers and switches. Optical transceivers are mainly used to convert electrical and optical signals, while switches are used to forward photoelectric signals. Among many optical transceivers, the SFP+ optical transceiver is one of the most widely used optical transceivers. Wh...

• November 23. 2021

The QSFP-40/100-SRBD is a dual-rate bidirectional (BiDi) optical module. It features 40G and 100G transmission rates and dual-fiber LC interface type. It can easily help customers upgrade from 10G to 40G/100G networks using existing 10G network duplex multimode fiber architecture. In the following, ETU-LINK will introduce the relevant parameters of the QSFP-40/100-SRBD optical module and the ...

• 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...