• January 06. 2021

40G QSFP+ SR4 optical module and 40G QSFP+ AOC active optical cable are widely used in short distance interconnection of 40G data center. Since both of them can realize short distance interconnection, what is the difference between them and what are their advantages and disadvantages? ETU-LINK will tell you the answer. 40G QSFP+ SR4 optical module VS 40G QSFP+ AOC active optical cable 1. Different...

• December 31. 2020

Usually, there are thousands of switches in a large data center. When connecting switches, sometimes different brands of switches are connected. So, can different brands of switches and optical modules be interconnected? The answer is yes, but you need to meet the following conditions to interconnect. 1. The specifications and parameters of optical modules of switches on both sides must be consist...

• December 29. 2020

In recent years, the traffic and bandwidth of the data center are growing exponentially, and the data center is also gradually transiting from 10G and 40G to 100G network, which drives the application of 100G optical modules in the data center. As a photoelectric converter, optical module is a very important part of optical fiber communication. Because optical fiber communication has the character...

• December 19. 2020

Data center computer room plays an important role in enterprise data processing and storage, but it is also accompanied by high energy consumption. Among them, the power consumption of network equipment such as switches accounts for 40% - 70% of the total power consumption. In addition, the power consumption of cooling and lighting equipment in the computer room makes up a very high proportion of ...

• December 17. 2020

WDM is a technology to solve the shortage of optical fiber resources. Its main purpose is to increase the available bandwidth of optical fiber without laying more fibers. CWDM and DWDM are two kinds of WDM technology which are widely used in telecommunication. They are mainly used in WDM / demultiplexer. WDM / demultiplexer should be used together with WDM optical module. Next ETU-LINK will show y...

• December 15. 2020

At present, 5G has started the commercialization process, but the complex bearer scheme leads to the increase of the corresponding optical module types. For 5G forward transmission, in terms of speed, AAU has introduced the eCPRI protocol standard, and the forward 25G rate has become the standard of various equipment manufacturers. Because of this, the rate standard of the carrier network will be ...

• December 11. 2020

The Cisco Nexus 9000 series switch is designed to meet the increasing demand of users and complex applications in the data center. It not only supports ports with 10/25/40/100G transmission rates, but also supports 16/32G fiber channel, Ethernet RDMA (RoCE) and IP storage unified port. The Cisco Nexus 9000 series switches include the Nexus 9500 modular switch and the Nexus 9300 non modular switch....

• December 08. 2020

H3C S6820 series switch is a high-density intelligent 100G switch developed by H3C company for cloud data center and high-end park. It has strong hardware forwarding ability and rich data center business characteristics. It can support up to 32 100G QSFP28 ports and two 1g out of band management network ports (one for Optoelectronics). Each 100G port can not only support 100g, 40g adaptive, but al...