• April 21. 2017

Development letter is very important for sales to expand foreign customers. Today we will introduce some main points for your reference. 1.Title A good beginning will attract the attention of customers. The letter should be concise, incisive and clear. Before writing the letter, you must know the general background of the target customers. Such as market, main products, product naming rules and pr...

• December 30. 2019

Today we will introduce the difference between LAN, WAN, MAN, VLAN and VPN. If you are interested in these knowledge, let’s learn about it! Following table compares LAN, MAN and WAN with respect to various networking parameters. Parameters LAN MAN WAN Full Form Local Area Network Metropolitan Area Network Wide Area Network What is it? • Systems are close to each other in LAN  • cont...

• April 12. 2017

With the continual development of the company, we recruit many new staffs this year. New staffs may not be aware of the dress requirements of the workshop. In order to further standardize the production workshop environment and create a good work image, following will list the dress standard of workshop. Correct dress standard: 1. In the workshop, need to wear anti-static cap, anti-static bracelet...

• April 10. 2017

Some people don’t know the patch cord has telecom and network level. Point at this problem, we will explain what are the differences between them! What is multimode optical patch cord? It is used as the patch cord from device to optical fiber wiring link, it has thicker protective layer, generally used to connect the transmitter and terminal box. It is applied in optical fiber communication system...

• April 06. 2017

Quality is very important for all products, such as optical Transceiver, only maintain the good quality, the products can be got the trust from the customer , is it right ? To control the quality of the product,we will conduct some testing, including Material testing, Product parameter testing, Distance testing, Switch testing and Aging testing. 1. Material testing Testing the material, ...

• March 29. 2017

UniFi switch is one type of the switches Ubiquiti has introduced into the market (The other kind is Ubiquiti EdgeSwitch). The UniFi switch provides fiber connectivity options for easy expansion of your networks. Today we will introduce the main features of UniFi switches, supportable SFP and SFP+. Introduction to UniFi Switches UniFi switches can provide 24 or 48 Gigabit RJ45 port, as a fully mana...

• March 23. 2017

The 100G optical transceiver adoption rate in optical landscape is consistently on the rise for the past few years. It is predicted that over half of the data center optical transceiver transmission will make the shift to 100G. The traditional 10G or even 40G may not be enough considering the explosion of data, therefore, 100G is going to become the new standard, and it has the following adva...

• April 08. 2017

In 10G networks, engineers are often confused about the choice of optical fiber or copper / optical cable. Today, ETU-Link will analyze three 10G network communication solutions for everyone to reference. Solution 1: 10G SFP+ module + patch cord + 10G SFP+ module Solution 2: 10G SFP+ to 10G SFP+ DAC Cable In the data center, copper cable is usually used in connecting the server and storage area ne...

• March 23. 2017

40G Ethernet is very common in data centers nowadays. With the rise of 40GbE QSFP+ optical module market, more solutions can be applied, users also have more choices. Let’s take a deep understanding of the interconnection solutions of 40G optical networks. In data centers, optical modules are generally used to connect switches and servers for data exchange and transmission. For the interconnection...

• March 15. 2017

With the company’s steady development, engineers are working hard and continuous R & D high-speed optical module. ETU-Link officially released a new generation of 10G 1310nm ER optical transceiver —— ESP3192-3LCD40, SM 40KM. Compare with SFP+ 1550nm 40km, 1310nm 40KM is more competitive. Advantages: 1.40KM fiber testing: The Engineers tested the modules via Corning 40km fiber testing to ensure...

• March 13. 2017

The finished product of an optical transceiver, seemingly simple. In fact, the production of a product needs multi-channel detection. There are some parameters are very important in the test. Only these parameters meet the relevant standards can make the optical module best performance. Do you know which test parameters? Now let's learn about it! 1. Output power Output power refers to the light in...

• March 10. 2017

As a sales of optical transceiver should know that the operating temperature will influence the parameters of the optical transceiver. According to the working temperature, there are industrial and commercial optical transceiver. What is industrial and commercial optical transceiver? What are their differences? 1. Working temperature Commercial optical transceiver: 0~70℃ Industrial optical transce...