• April 14. 2021

With the mature development of 100G technology and the advent of 100G products, the deployment of large enterprise network and data center is evolving towards 100G. At present, 100G optical modules on the market include CFP, CFP2, CFP4, QSFP28 and CPAK. The sizes of 100G optical modules in different packages are different. Among them, the 100G optical module in QSFP28 package has the smallest...

• May 13. 2021

The flattening of the network architecture has greatly promoted the development of 100G high-speed interfaces. Many data centers have also upgraded from 25G networks to 100G. However, when high-speed switches are interconnected with low-speed switches, we will encounter the problem of insufficient SFP28 ports. At this time , We can use ETU CVR-QSFP28-SFP28 converter module to conver...

• June 29. 2021

According to the transmission distance, 25G optical modules can be divided into 25G SFP28 SR 100m, 25G SFP28 LR 10km, 25G SFP28 ER 40km, etc. In this article, ETU-LINK will focus on introducing the 25G SFP28 LR 10km optical module.     The 25G SFP28 LR 10km optical module has a working wavelength of 1310nm, dual LC connector, DFB laser and PIN photodetector, built-in CDR circui...

• 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 24. 2021

According to the working temperature range, optical modules can be divided into commercial (0℃ - 70℃), expansion (- 20℃ - 85℃), industrial (- 40℃ - 85℃). Generally, only commercial optical module is needed for indoor optical module, but industrial optical module is needed if the optical module is used in outdoor environment with uncertain and fluctuating temperature (such as remote mountain area, ...

• October 30. 2021

DAC high-speed cable is a low-cost and short-distance connection solution for data center equipment. It consists of a cable and optical fiber transceiver devices at both ends of the cable. Because of the high cost performance, the interconnection application between short-distance network equipment is widely welcomed. At present, there are many specifications of DAC high-speed cables on the market...

• 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 ...

• 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...