Thursday, March 7, 2019

OLT Wireless Bridge/Small OLT Unit for Dead Zones

I have seen the issue many times where there is a cluster of apartment buildings and it is not possible to feed them via fiber as a trunk is not placed between two sides of a street or the trunk has since been destroyed by road works or similar. Getting permission to fix the trunk is near impossible and this becomes a dead zone.

I am currently thinking of two solutions:

  1. Place a radio/laser point to point from one side of the street to the other. In the opposite side put an OLT and cable off from here to the other buildings, the downside being that OLTs are not the cheapest and it would be severely underutilised. If we imagine 5 building with 20 flats in each ie 100 connections, we don't need anything too powerful.
  2. Place a radio/laser bridge between the two premises and continue cabling from here so that all traffic flows back to the OLT in the DC.

I would certainly prefer the second option as I would not have to manage mutliple OLT's and it seems a lot cleaner.

Does anyone know any equipment that can be used to bridge a fiber cable wirelessly so that you can continue splitting the cable on the opposite side of the road and would not interrupt the general data flow and allow the ONU info to flow back to the OLT for authentication. Alternatively does any know of a small OLT, if we consider 100 connection and that an OLT GPON port can be split approx 64 connections per port, it would only need to be a two port device.

I have heard talk of fiber bridges using a laser link but other than this site I don't find a great deal of info. Ideally I just want to keep things simple and use a simple bridging device. Any thoughts, advice or links would be greatly appreciated.



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