New Hire Flashcards
First component of the Comcast cable network. Responsible for receiving and processing signals and then sending those signals over the Comcast network to customers
Headend
Benefits of using fiber optic cable for transportation of signals
Low signal loss, Greater bandwidth, Increased security, Flexibility and durability
Transforms light energy from optical cable to RF or electrical energy on the coaxial output
The node
Transports modulated light between the fiber node and the headend
Fiber optic link
Used for routing or splitting signals. Does not require power to operate
Passive devices
Carries signals to and from the node through the hardline coaxial cable to communities for connection to the customer drop
Distribution system
Active device(3 examples)
Amplifiers, Power supplies, Nodes
Starts at the tap and terminates at the cpe
Drop system
Attached at the tap or in the house to prevent reception of certain frequencies
Traps/filters
When was Comcast founded
1963 as American Cable Systems. Our first system was built in Tupelo, Mississippi. Largest cable operator in USA
U.S government agency established in 1934 to regulate electronic communications
FCC(federal communications commission)
A type of cable which contains two conductors, one inside and the other outside around it, separated by an insulating layer
Coax cable
metal used for drop cable center conductor
copper-clad steel
characteristic of RF propagation in a cable in which higher frequencies tend to travel along the surface of the conductor rather than throughout its mass
skin effect
most common dielectric material
polyethylene foam
