Fiber optic adapters are typically used to connect two fiber optic cables together. They come in versions to connect single fibers together (simplex), two fibers together (duplex), or sometimes four fibers together (quad). Adapters are designed for multimode or single-mode cables. The single-mode adapters provide more precise alignment of the tips of the connectors and can be used to connect multimode cables. The reverse is not suggested as this might cause misalignment of the small single-mode fibers and loss of signal strength (attenuation).
Optical attenuators can take a number of different forms and are typically classified as fixed or variable attenuators. What's more, they can be classified as LC, SC, ST, FC, MU, etc. according to the different types of connectors.
Sijee provides different types of Optical Fiber Attenuator, Fiber Optic Attenuator, Fiber Optic Fixed Attenuator, FC Fiber Attenuator.
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1. Do not "turn off" TV: Instead of wasting energy on everyone, we must pay attention to balancing the impact of power on the life of the TV. We all know that the backlight is one of the most life-threatening components of all LCD TV accessories. It is very similar to the fluorescent tubes used in our homes.
2. Avoid long work: This article does not conflict with the above considerations. In the case of super-long work, heat will accumulate inside the LCD TV's body, which is not too great a threat to other electronic components, but the LCD panel may be burned out, thus forming a large area of ​​dead pixels. 
3. Professional cleaning method: Due to static electricity, the screen surface of LCD TV is very easy to be contaminated with dust. However, clean water is a very unwise cleaning method. The first is that the cleaning effect is general, and it is easy to leave water marks. What's more, the LCD is very vulnerable to permanent damage due to moisture (if water droplets infiltrate the screen, avoid electricity, and let the water slowly evaporate in a warm environment.
4. Avoid scratching, twisting, or hitting the surface of the LCD screen: Many people use their fingers to point and point at the screen. This does not matter to CRT TVs, but it may cause fatal damage to LCD TVs. At the same time, it is necessary to look after their children and Their toys will cause direct damage to any impact or scribing of the LCD screen, and it is very likely that the whole screen will be scrapped.
5. Still images can also damage the LCD screen: At present, many LCD TVs have a digital photo browsing function, but long-term display of a picture can cause damage to the LCD screen. When not using the machine for a long time, avoid making the machine display a screen, it is best to close. 
6. Water is a major killer of LCD screens: LCD TVs are very sensitive to humidity, and their air humidity requirements are more stringent. If the humidity is kept between 30% and 80%, the LCD can work normally, but if If the indoor humidity is higher than 80% (southern region), there may be condensation inside the LCD TV. This condensation may lead to leakage and short circuit in the LCD TV, and even serious burns. TV set.
Optical attenuators are commonly used in fiber-optic communications, either to test power level margins by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match transmitter and receiver levels. Sharp bends stress optic fibers and can cause losses. If a received signal is too strong a temporary fix is to wrap the cable around a pencil until the desired level of attenuation is achieved. However, such arrangements are unreliable, since the stressed fiber tends to break over time.
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TV Commonsense Popular Science Series: Six Precautions for Correct Protection of Televisions
Today, television has become an indispensable part of people's lives, and the frequency of use is also the highest, so how to maintain the "big play" in this life may become the most concerned topic of people. Let us together Take a look and see if your life is like this to cherish your TV!