Access Network Comparisons

Narrowband

dial-up modems

ISDN - BRI

ADSL

(broadband)

Cable modems

(broadband)

Satellite

Downstream

Data Rate

Up to 56 Kbps

56 Kbps to

128 Kbps

1,5 Mbps

to 9 Mbps

500 Kbps to

30 Mbps

e.g. 400 Kbps

Upstream

Data Rate

Up to 56 Kbps

56 Kbps to 128 Kbps

16 Kbps to 500 Kbps

99,6 Kbps to 1 Mbps

also planning to use 28,8 Kbps

(telecommunication return)

Several possible starndards

Access System

Normal phone lines

Normal phone lines with

ISDN Terminal Adapters

Normal phone lines with

ADSL modems

Cable TV networks

Wireless transmission

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