21-06-2017, 06:17 PM
(21-06-2017, 05:42 PM)reset Wrote: Maybe the TV company charges but the connection and they pole the system to see how many sets are connected, how many to bill for.
No, that isn't the reason at all. The signal from each amplifier is split, typically, 48 ways to feed 48 homes. As all the splitters are inductive and, therefore, directional, there is plenty of isolation to the forward path to prevent reflections causing interference to other users. In the return direction, however, those splitters are now functioning as combiners and all unwanted signals appearing on those 48 feeders are combined and fed back to the head-end.
As a typical fibre node feeds 2,400 homes, it doesn't take much unwanted interference to cause major problems!
If the service is terminated, it doesn't matter whether the subs equipment is still connected or not because, if it is, it will be deactivated remotely by the same billing system that activated it in the first place and is responsible for communicating all changes in service levels, such as adding sport or movie packages to the service and so on.
However, the customer's set top box is an expensive piece of kit, which is why Virgin want it back. At the same time, they don't want the feed left unterminated - thus the instructions to fit the supplied termination.
