Quote:
Originally Posted by Sephiroth
Yes - the ones with fans are fibre nodes - usually.
I trudged my "village" street by street; first in Google Streetview and mapped it all. It gives you a great picture of how many homes are passed for each fibre node. It helps to have the electoral roll to hand so that you get a street house count.
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Are you sure about this map, Seph?
I suspect the 230v cabinets you call launch are actually optical nodes - as I understand it the nodes do the RF launch and the rest of the amplifiers in the cascade, which isn't many on the modern network, are line powered from a power supply at the nodal cabinet.
I'm not aware the MSANs, Metnet and P/SDH kit sit in the same cabinets as the HFC nodes. As I understand it they are separated in no small part because they are worked on by different teams and they require a higher level of protection and resiliency - you should never, ever see a telco or optical network cabinet open.
To add to the joy also the relationship between node and served area isn't necessarily 1:1 - depending on the node in use
a single node can take
4 optical feeds, deliver 4 coaxial outputs and hence power 4 nodal areas from a single cabinet.
I would hope that no nodal area is more than 500 premises passed. Newer build is 250, and newer build still even fewer.