• February 23. 2022

Cloud computing and big data are booming in my country. In order to provide enough bandwidth, many access switches have been developed to aggregation/core switches that can connect to 40G Ethernet. 40G networks have been widely used in data centers, and optical modules are one of the indispensable components for data center equipment interconnection, so ETU-LINK will give you an inventory of the t...

• February 18. 2022

In recent years, China has clearly decided to speed up the construction of 5G networks, data centers and other new infrastructure, and 5G data centers have been built in various places. In this article, ETU-Link will introduce the application of 40G QSFP, 100G QSFP28 optical module and 10G SFP+ active optical cable in data center optical network. The network architecture of data center can be...

• February 16. 2022

In this blog, ETU-LINK will introduce the fire rating standards of copper cables. The flame retardant grades of copper cables are divided into four grades: CMX, CM, CMR, and CMP. The minimum is CMX.   The insulation layer of the CMP cable is made of FEP material, and the outer sheath is made of PVC. FEP has strong fire resistance and can endure temperatures as high as 800°C or more before it ...

• February 12. 2022

At present, with the rapid development of high-definition, massive video, cloud computing and big data, self-media, Internet of Things, and artificial intelligence, the IP data traffic in global data centers is increasing year by year, and the demand for 100G optical modules is also increasing. Next, ETU-LINK will take you to the 100G optical modules world. 1、100G QSFP28 SR4 The 100G QSFP28 SR4&nb...

• January 26. 2022

The communication triangle tower must be familiar to everyone. In this article, ETU-LINK will introduce the base station under the communication triangle tower and the application of optical modules in the base station.   The communication triangular tower is composed of antenna, computer room, base station, feeder, and supporting equipment. The antenna is at the top of the triangul...

• January 24. 2022

In this blog, ETU-LINK will make an inventory of the part numbers and supported transmission distances of 1.25G SFP BiDi Simplex optical modules. 1.25G SFP BiDi Simplex bidirectional optical module supports 1.25Gb/s transmission rate, supports hot swap, Simplex bidirectional transmission, supports temperature range : commercial temperature (0℃～+70℃), extended temperature (-20℃～+85℃) ), and industr...

• January 19. 2022

In optical fiber communication, when optical fiber transmits optical signal, the optical signal will attenuate along the optical fiber transmission path, and the transmission distance is limited by optical fiber attenuation. In order to transmit the signal further, we need to enhance the optical signal. The traditional method of enhancing the optical signal is to use the regenerator, but it has ma...

• January 14. 2022

CPRI is the abbreviation of common public radio interface. CPRI plays the role of transmitting baseband I / Q signals to radio units in traditional BS (base station). CPRI has efficient and flexible I / Q data interfaces for various standards, such as GSM, WCDMA, LTE, etc. Unlike the data center, the CPRI optical module used in the base station has a constant temperature environment, and its worki...

• January 13. 2022

Although 40 GBIT/s and 100 GBIT/s data centers are developing rapidly, 10 GBIT/s optical modules are in high demand in most application scenarios. For example, the computer rooms of many schools, organizations, and companies are still based on 10 GBIT/s Ethernet. Among them, 10 GBIT/s SFP+ optical modules occupy the largest market share. This article is easy to day light communication (ETU-li...

• January 08. 2022

Nowadays, under the rapid development of big data, artificial intelligence, Internet of Things and other network technologies, 10G network can no longer cope with the future traffic demand. In order to meet the upgrade of 10G network, and based on the low cost and high efficiency factors, 40G QSFP+ to 10G SFP+ DAC branch high-speed cable has become the preferred interconnection scheme for the shor...

• January 07. 2022

TOR (Top of Rack) is a data center routing mode.In this article,ETU-LINK will introduce the application of 40 Gigabit DAC high-speed cable in data center TOR wiring. The 40 Gigabit data center TOR wiring mode is to use a standard 42U server cabinet, and then put a 40 Gigabit switch above the server cabinet. The server in the server cabinet is connected to the switch at the upper end through t...

• December 31. 2021

The English translation of high-speed cable is Direct Attach Cable, or DAC for short. This article will introduce several key factors that affect the transmission performance of DAC high-speed cable. 1. Cable attenuation Cable attenuation refers to the reduction or loss of signal energy that occurs during the transmission of information to the device through the cable. During the transmission of h...