Most cable companies have a DMC that stores all the movies, up and down links content and provides monitoring on input and out put. Each geographical region they have a headend. The old analogue headends were quite simple affairs, now they are massive complex installations.
The number of channels, number of concurrent VOD streams and number of internet connections that a cable network can provide is dependent on the number of multiplexers. The multiplexers live in the headend (a bit simplistic, but generally true). The Conditional Access (CA) system also lives in the headend.
The headend is the most expensive part of the network, it is often more expensive than all the boxes that it serves.
Elliott - a little more
- Simon Elliott
- London, United Kingdom
- I am an architect with shed loads of familiarity in providing high profile consumer media, products and services. I conceive ideas, design and lead projects to create new consumer products. I love brainstorming ideas with marketing counterparts and creating future facing and innovative solutions. I have been responsible for high volume mass consumer market features where scale, reliability and the ability to quickly respond are of crucial importance.