• January 04. 2017

Ordinary patch cord surface will be easily damaged after a long time of use, affecting the transmitting quality. Therefore armored patch cord began to be used by more and more people, today we will introduce the armored optical patch cord. Armored optical patch cord has the features of high tensile, compression, bending, fire prevention, moisture proof and anti mouse bite, is mainly used for the i...

• December 29. 2016

Optical media converter is a medium for converting short distance electrical signals and long distance optical signals. According to the fiber type, the transmitting distance of media converter is different, so there are single mode media converter and multimode media converter. Today we will learn about the difference between single-mode fiber and multimode fiber. Structural differences between s...

• December 26. 2016

Optical transceiver is a very important part in optical fiber communication technology, and we will often see the words SFP-10G-SR on the optical transceiver parameters. Some people don’t understand it’s meaning. Today we will explain what is SFP-10G-SR. SFP-10G-SR is a very common optical transceiver model, CISCO, HUAWEI and other manufacturers have production, Mainly used in switches and routers...

• December 22. 2016

Optical attenuator is the optical device for reducing optical signal power. Depending on the application, the optical attenuator can be divided into adjustable optical attenuator and fixed optical attenuator. Today we will introduce the basics of fixed optical attenuators. The attenuation power of fixed optical attenuator is fixed(1 dB, 5 dB, 10 dB etc). The attenuation power of fixed optical atte...

• December 19. 2016

The optical transceiver is composed of optoelectronic devices (TOSA, ROSA, BOSA), functional circuit (PCBA) and optical interface. Its function is to achieve photoelectric conversion. The transmitting end converts electrical signals into optical signals, and the receiving end converts the optical signal into electrical signal through the optical fiber transmission. ETU-Link sincerely recommend you...

• December 14. 2016

Due to the development of microelectronic technology, active and passive optical devices technology, optical transceiver has become the mainstream of the common optical module in recent years. Although the optical module package, rate, transmission distance is different, but its internal composition is basically the same. Today we will learn and explore the working principle of the optical transce...

• December 13. 2016

Do you know why some optical transceivers are colorful? Today will share the information about these colorful SFP modules. The colorful SFP modules are called wavelength division multiplexing (WDM) SFP module. WDM SFP is divided into two types: ◆ CWDM SFP ◆ DWDM SFP Different colors represent different wavelengths, today we mainly introduce CWDM SFP. Waht is CWDM SFP? CWDM SFP is a kind of optical...

• December 07. 2016

Optical connectors are common throughout the network and give us the power to add, drop, move and change the network. However, it is an undeniable fact that the end face pollution of optical connectors is a major cause of the failure of the network. Today we will introduce the fiber end surface inspection. About end face pollution Like picture 1, the end face of the optical fiber or connector shal...

• December 05. 2016

The wide application of the fiber to the home (FTTH) promotes the rise of the optic connector. This product has the characteristics of small size and fast connection, and caused small loss, high stability, it’s essential fiber connection devices for fiber system. Today will introduce the use instruction of fiber fast connector. About fiber fast connector Fiber fast connector is a kind of innovativ...

• December 01. 2016

Today we will share how to assemble the optical transceiver, take 10G as example. 10G optical transceiver components: Base, lower pressure block, PCBA, upper pressure block, springs, buckle, ring, sheet metal parts, screw. 10G optical transceiver assembly steps: Put the lower pressure block into the base → Add PCBA → Add upper pressure block → Add heat sink → Put the springs into the buckle and ad...

• November 29. 2016

With the wide application of 40G/100G network, the installation and management of patch cord becomes more and more important, the management directly affects the overall data transmission. Good management can not only reduce the operating costs, but also can increase the network operation and maintenance reliability and flexibility. Here, we will introduce 5 methods to improve patch cords’ managem...

• November 25. 2016

There is a Latvia brand called “Mikrotik" in the communications industry, founded in 1995. More than 20-year experience has made him the dominant position in the router and wireless ISP systems market. In order to further deepen the market, has held the exchange meeting in 23 countries. Their equipment mainly includes CCR core router, CRS series routing switch, RB951 941750 series routers and wire...