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I took a measure (OTDR) of optical fiber from the headend and I got this :

enter image description here

In 10.7km The optical fiber have a "reflection". This reflection is holding 500 meters. After that reflection down again in 11.2km.(above 11.2km fiber is cut down).

How can this affect the performance in network ? Can I send costumers across that fiber ? Would have I lower error bit ?

NIN
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  • That depends on your tolerance for a loss budget. – Tony Stewart EE75 May 09 '22 at 22:32
  • Hi Tony. Sorry I don't understand you – NIN May 09 '22 at 22:55
  • `Can I send costumers across that fiber ?` is not answerable and is really a request for an opinion – jsotola May 09 '22 at 23:40
  • Maybe you don't understand me. My question is: are they technical documentation about this ? – NIN May 09 '22 at 23:46
  • The first criteria is the overall link loss. Many manufacturers of OTDR have training on how to use and interpret their units. Just don’t expect to pick up an OTDR and use it without training. – Kartman May 10 '22 at 00:15
  • If you don't understand how much margin in loss you need to Rx, you cannot do much without Tx and Rx levels overall – Tony Stewart EE75 May 10 '22 at 02:30
  • Question is : Do The reflection affect the performance ? If so, how ? – NIN May 10 '22 at 03:38
  • Yes, the reflection does affect the performance. How much? You have the information but you’ve not shared it with us. I’d suggest you find someone local to you that can show you how to use your OTDR and will be able to determine what type of fiber, equipment etc you have. – Kartman May 10 '22 at 06:54

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