This document discusses digital subscriber line (DSL) technology, listing different types of DSL including ADSL, VDSL, and SDSL. It notes that DSL provides always-on high-speed internet access through phone lines while still allowing voice calls, with speeds much faster than dial-up. However, signal quality degrades with distance from the central office, potentially resulting in slower speeds.

3. 1. Ethernet cables
2. Telephone
3. Modems
4. Filter
5. Phone jack

5. •Asymmetric Digital Subscriber Line
ADSL
•Very high-bit-rate Digital Subscriber Line
VHDSL
•Symmetric Digital Subscriber Line
SDSL
•Rate Adaptive Digital Subscriber Line
RADSL
•High bit/data rate Digital Subscriber Line
HRDSL
•Integrated Service Digital Network Digital Subscriber Line
ISDNDSL

6. Internet access
& file sharing Broadcast TV
Video on demand
User generated
video
Telecommuting Online education shopping
Online gaming

7.  DSL service is always ON and we can still use the
phone for voice calls
 Broadband speed is much faster than dial up
service
 Digital data is directly transmitted to computer as
digital data which uses much wider bandwidth for
transmitting

8.  DSL has one significant downside
 As you move away from the central office the
connection become slower
 This result is distortion of signal