Why are termination problems the most common fault?
A lot of people are aware that termination has to be powered and activated at both ends of the cable. What they do not know, is that it has to be activated again when you are using repeaters, OLMs or Profihubs. Every segment has to be terminated! This often slips in when people are using lots of fibre optic and there is only a short length of copper cable in the cabinets. Even this short cable has to be terminated at both ends.