Diagram of a <a href="https://en.wikipedia.org/wiki/hybrid_fiber_coaxial" class="extiw" title="w:hybrid fiber coaxial">hybrid fiber coaxial</a> (HFC) network, the type of technology used in modern <a href="https://en.wikipedia.org/wiki/cable_television" class="extiw" title="w:cable television">cable television</a> networks.     The cable signal originates at a regional <i>headend</i>, where many television channels are transmitted on an <a href="https://en.wikipedia.org/wiki/optical_fiber" class="extiw" title="w:optical fiber">optical fiber</a> cable, which is carried on utility poles or underground. The optical fiber trunklines fan out from <i>distribution hubs</i> to <i>optical nodes</i> that serve local neighborhoods.  Here the signal from the optical fiber is translated from light beams to radio signals carried on <a href="https://en.wikipedia.org/wiki/coaxial_cable" class="extiw" title="w:coaxial cable">coaxial cable</a>, which distribute it to the individual subscriber residences.
<ul><li><a href="//commons.wikimedia.org/wiki/File:HFC_Network_Diagram.png" title="File:HFC Network Diagram.png">HFC_Network_Diagram.png</a>: Unforgettable fan <a href="https://en.wikipedia.org/wiki/User:Unforgettable_fan" class="extiw" title="en:User:Unforgettable fan">en:User:Unforgettable fan</a></li>
<li>Vectorised by: <a href="//commons.wikimedia.org/wiki/User:Jffner" title="User:Jffner">Jffner</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Jffner" title="User talk:Jffner"><span class="signature-talk">talk</span></a>)</li></ul>
2009-04-19 04:14
<ul><li><a href="//commons.wikimedia.org/wiki/File:HFC_Network_Diagram.png" title="File:HFC Network Diagram.png">HFC_Network_Diagram.png</a></li></ul>