• June 04. 2021

The CDR clock data recovery function plays a vital role in the signal transmission process of the optical module. Today, ETU-LINK will introduce to you what exactly is CDR clock data recovery.   The full name of CDR is clock and data recovery, which can be simply understood as: after the optical signal is converted into an electrical signal, the receiver performs electrical domain shaping and...

• June 01. 2021

Fiber media converters are usually used in pairs to extend the transmission distance of copper cabling systems. But in the process of using, if one side of the link fails, the other side of the media converter will continue to work, and will not send an error report to the administrator. In this case, fiber media converter with FEF function can perfectly solve this problem. Next, we will introduce...

• May 29. 2021

The 10 Gigabit copper module adopts hot pluggable SFP+ package, which can be divided into multi rate and single rate. The multi rate adaptive supports 1G to 10G transmission rate, and the single rate only supports 10G transmission rate. The interface type of 10 Gigabit copper module is RJ45. Its port can support both shielded twisted pair and unshielded twisted pair. It is mainly used in switches,...

• May 28. 2021

Today, we will learn about optical fiber channel module, Ethernet optical module, and what is the difference between them? First of all, let's understand what fibre channel optical module is. It follows the fibre channel standard and is mainly used in the data center fibre channel storage network link. Its transmission rate can support 1-128Gbps at present. Common packages include SFP, SFP+, ...

• May 25. 2021

We all know that a switch is a network device used to forward electrical (optical) signals, while a router is a hardware device that connects two or more networks. It acts as a gateway between networks and reads the data in each packet. The address then determines how to transmit the dedicated intelligent network device. Next, ETU-LINK will give you a detailed introduction to the differences ...

• May 22. 2021

Driven by the construction of 5G base stations, cloud computing, and large-scale data centers in recent years, the market size of optical modules has increased accordingly. Although the optical module industry is developing rapidly at this stage and gradually becoming mature, from the perspective of the entire industry chain, its upstream optical components and chips still rely heavily on for...

• May 21. 2021

The OM3 patch cord is a 10-Gigabit multi-mode patch cord. The multi-mode fiber uses light-emitting diodes as the light source, allowing multiple beams of light to propagate in the fiber at the same time, thereby forming a mode dispersion. Mode dispersion technology limits the bandwidth and distance of multimode fiber. Therefore, the core wire of multimode fiber is thick, the transmission speed is ...

• May 18. 2021

With the advent of 40G Ethernet, many enterprise users have begun to take full advantage of current 10G network equipment to upgrade to 40G networks. However, when high-speed switches and low-speed switches are interconnected, we will encounter the problem of insufficient SFP+ ports. At this time, we can use Yitian CVR-QSFP-SFP10G converter module to convert QSFP+ ports to SFP+ ports, an...

• May 15. 2021

Firewall is one of the most important network protection equipment, with very strong anti-attack immunity, it can play an important role in enterprise internal network security protection. Next, ETU-LINK will introduce the firewall equipment and optical module collocation plan to you. Firewall is a kind of equipment which is used for security management and screening for enterprise users, and help...

• 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...

• May 12. 2021

Generally, the network card is installed on a computer or server, and communicates with another computer, server or other network equipment through the network. According to different application fields of network cards, we can divide them into computer network cards and server network cards. Generally, a computer can use one network card, but for servers, multiple network cards need to be us...

• May 08. 2021

We need to pay attention to the two parameters of transmit optical power and receiving sensitivity when purchasing optical modules, because these two parameters are one of the key factors to ensure the normal communication of optical modules. Next, ETU-LINK will introduce to you what are the transmitted optical power and the receiving sensitivity? And how to test the optical power of the optical m...