Cable TV Systems Illustrated - pág.49

This table shows that content
sources include off-air local programs, entertainment from national networks, local programs, government access (public information), education
access, public access (residents), syndication (shared sources), and the emergency alert systems.

 

CATV contribution network connection types include satellite connections,
leased lines, virtual networks, microwave links, mobile data systems, and
public data networks (e.g. Internet).

Content distributors that provide television programming to CATV networks via satellite lease some or all of the transponder capacity of the satellite. Satellite content providers combine multiple programs (channels) for
distribution to broadcasters.

Satellite communication is the use of orbiting satellites to relay communications signals from one station to many others. A satellite communication
link includes a communication link that passes through several types of systems. These connections include the transmission electronics and antenna,
uplink path, satellite reception and transmission equipment (transponder),
downlink path, and reception electronics and antenna. Because satellite systems provide signal coverage to a wide geographic area, the high cost of
satellites can be shared by many broadcasting companies.

Leased lines are telecommunication lines or links that have part or all of
their transmission capacity dedicated (reserved) to the exclusive use of a
single customer or company. Leased lines often come with a guaranteed
level of performance for connections between two points. Leased lines may
be used to guarantee the transfer of media at specific times.

Virtual private networks are assigned communication path(s) within a system that transfer data or information through one or more data networks
that are dedicated between two or more points. VPN connections allow data
to safely and privately pass over public networks (such as the Internet).