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Reflection control in FTTx networks

Reflection control in the PON can be managed using fusion splicing and angled end-face fiber connectors. In any fiber joint in the network is a target for reflectance, that is supposed to eliminate noise. For the analog video target is -50 dB. Mechanical splicing is creating reflection more than allowed either during installation or during environmental exposure. The solution is usage of angled connectors which have very small possibility of degradation and initial repeatable reflectance of <-50 dB. Practically, angled fiber connectors can elevate in loss but not in reflection.
Operators can implement fusion splicing and angled connectors for one or several reasons:


  • control of optical reflection
  • elimination of one of potential source of video picture quality degradation
  • simplification of optical layer troubleshooting
  • simplification of optical testing on a working PON fiber system

Use of the mechanical splicing and/or nonangled fiber connectors will result in increase of necessary testing and controls of the reflection in the network.


Lomoveishiy – Finland

I needed those to connect my PC on the third floor to have internet access in that room, and ISP installed their modem on the first floor only. After dropping fiber patch cables, plugged in all cables into these media converters at both sides, and link came up instantly. Was much easier than I thought!

Raymond – USA

Great experience – units worked straight out of the box – just needed plug in cables and we were done. I also like the possibility to enable jumbo frames, while we do not have a need for this feature at the current moment it’s great to have this option.

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