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Name: Ruparel JayName: Ruparel JayEnr_no: 146020307546Enr_no: 146020307546
Modem Technologies. What does modem mean? DSL Modem Advantages of DSL ADSL Modem How ADSL work? Advantages of ADSL
The word "modem" comes from "modulator-demodulator“
Modulation: digital information to analog signals
Demodulation: analog signals back into useful digital information
Allows 2 computers to communicate over standard phone lines.
They have many different shapes and sizes to correspond all kind of needs.
Digital Subscriber Line. New modem technology. Data transmission is based on digital encoding (digital). Uses phone line so for the customer wiring (subscribers’
line). Use digital coding techniques to provide more capacity. Allows high-speed Internet access over existing twisted-
pair and ordinary copper telephone wires.
Provides "always-on" connection. To transport high-bandwidth data. A special hardware attached to both the user and switch
ends of line.
High-speed. Secure connection. No dial-up, waiting or dropped connections. It's always on connection. Saves both money and time. Provides large file transfers. Multiple workers on a network can connect to a
single DSL.
Asymmetric Digital Subscriber Line. Is a form of DSL. A high-speed Internet access service. Speed depends on the length and the diameter
of the cable and the type of the mode Requires a special ADSL modem and an Internet
service provider (ISP) .
It is asymmetric since the data coming to your computer from the Internet (download) is faster than the data traveling from your computer to the Internet (upload).
Uses standard telephone lines. Telephone can be used normally, even when surfing in
the Web with ADSL service. An "always on" service. Not available to everyone.
ADSL Splitter separates the analogue voice (phone) traffic from data (adsl) traffic.
ADSL Modem converts digital signals from your PC into analog signals that can be transmitted over telephone cable in the local loop.
Local Loop is the path your telephone line will take from your house to the local exchange.
Service Provider. The cable consists of a "copper pair" .
Quick connection. Fast. Use phone connection when connected to the internet. No need for second phone line. No dropped connections. Always on connection. Ability to download large files. Save time. Cost efficiency.
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