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Home News Industry-news Advantages of optical fiber cable in aud...

Advantages of optical fiber cable in audio and video transmission 



 

1. If the transmission distance of video is more than 100meter, when use copper cable, it is necessary to add repeaters or add network equipment.  This will increase project costs and hidden troubles in future. Using fiber cable can easily solve this problem. The fiber optic solution has CWDM and DWDM uncompressed technology for audio and video extension with non compression and no transmission delay.         

 

2. There are a large number of electromagnetic interference sources in the specific working environment (such as factory, hospital, air conditioning room, power room, etc.), but the optical fiber cable can run stably in these environments without electromagnetic interference, since it is made of glass element not metal.

 

3. There is no electromagnetic leakage in optical fibers. It is very difficult to detect the transmitted signals in optical fibers. It is a good choice in places where the confidentiality level is high (such as military, R&D, auditing, government and other industries).           

 

4. Optical fiber is a good choice in the environment with high demand for bandwidth, reaching more than 1G.  Fiber optic cable could be regarded as no limit bandwidth. Now there is 100G fiber optical module in the market       

 

In recent years, single mode fiber optic cable is widely used in AV transmission projects, since single mode has almost the same cost with multimode fiber cable. In addition, single mode fiber cable could extend signals to a further distance than multimode. For digital video like SDI, HDMI, DVI video, single mode fiber extender could be up to 120KM and multimode could be only max 2KM. Now more and more SFP module suppliers use single mode SFP module to replace the multimode but the distance could be only max 300meter. There is no CWDM or DWDM solution for multimode cable in video transmission. For example, if you want 16 channels 3G-SDI fiber optic extender to transfer SDI video over one multimode optical cable, it will be not stable since inside is single mode type SFP modules and Mux, Demux. 

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