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ADSL - Coggle Diagram
ADSL
3 channels
Data download
Data upload
Voice calls
Transmits high-speed digital data
over copper telephone lines (POTS)
No special wiring
R-ADSL (Rate Adaptive DSL)
real-time line conditions
more stable connection
VDSL (Very high bit-rate DSL)
Download up to 52 Mbps
Upload up to 2.3 Mbps
no in rural areas
proximity to the
telephone company’s hub
“Always-on” connection
Absence …
asymmetric
Download speed fast
Receiving more data and small request
Standard ADSL Speeds
Up to 8 Mbps download
Up to 384 Kbps upload
ADSL 2+
Download up to 20 Mbps
Upload up to 850 Kbps
modulation techniques
Compatible Internet Service Provider (ISP)
ADSL modem
Users talk surf