Hi all, i am new in docsis.
I am working with docsis only few months, but i havent seen anything like this before. I have an interesting noise on one optical node.
The interesting thing is that i have everything disconnected from optical node. Only AC and reverse path fiber is connected. See the picture with interference. Anyone have any idea what is happening?
I have changed the optical node, fiber cable to optical node, fiber patch cables, also changed inputs on reverse path receiver and transformer for power supply 60v AC and it is doing the same thing.
With noise i am thinking about wave signal see on atachement. Next one is normal state when there is no wave noise.
The walues was measured on rf test port from problematic optical node reverse path. The rf test port have -20 dB.
We have another 4 optical nodes on site, same nodes same model from same order and they are working excelent.
Please help.
Thank you
Br
dave
