NETWORKING COMPONENTS AND DEVICES ADSL & DSL MODEMPART_8
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Modem Technologies
DSL
ADSL Modem
Bands and Frequency
Bandwidth notation
Routing and Security
Wireless ADSL
modulator-demodulator
Digital Subscriber Line.
No dial-up
waiting
Asymmetric Digital Subscriber Line
high-speed Internet access
Internet service provider
length and the diameter
cable and the type
ADSL Splitter
Local Loop
Service Provider.
The cable
copper pair
Downstream data.
Upstream data
Availability.
Hardware requirements
Modem Technologies
DSL
ADSL Modem
Bands and Frequency
Bandwidth notation
Routing and Security
Wireless ADSL
modulator-demodulator
Digital Subscriber Line.
No dial-up
waiting
Asymmetric Digital Subscriber Line
high-speed Internet access
Internet service provider
length and the diameter
cable and the type
ADSL Splitter
Local Loop
Service Provider.
The cable
copper pair
Downstream data.
Upstream data
Availability.
Hardware requirements
The word "modem" comes from "modulator-demodulator“
Modulation: digital information to analog signals
Demodulation: analog signals back into useful digital information
Settled device for computers.
Allows 2 computers to communicate over standard phone lines.
They have many different shapes and sizes to correspond all kind of needs.
Provides "always-on" connection.
To transport high-bandwidth data.
A special hardware attached to both the user and switch ends of line.