Glossary - Fritz! Fon WLAN 7390 Installation, Configuration And Operation

Glossary

Glossary
ADSL
ADSL2
ADSL2+
FRITZ!Box Fon WLAN 7390
abbreviation for Asymmetric Digital Subscriber Line
ADSL (G.992.1/G992.2) was developed on the basis of
DSL technology in order to satisfy the increasing demand
for higher throughput rates during uploading and down-
loading.
designates a fast kind of data transmission that works
with standard copper cables and transports signals in
both directions at different speeds (upstream at
640 Kbit/s and downstream at up to 9 Mbit/s).
abbreviation for Asymmetric Digital Subscriber Line 2
ADSL 2 (G.992.3) is a further development of the ADSL
standard.
ADSL2 offers range much greater than did the first ADSL
generation, and is significantly more robust than ADSL, as
it can simply disable single carrier frequencies when they
produce interference. This feature allows ADSL2 to pre-
vent synchronization losses.
With a throughput rate of up to 12 Mbit/s downstream,
ADSL2 offers considerably greater bandwidth than ADSL.
ADSL2 is completely downward compatible, meaning that
terminal equipment compliant with ADSL can also be op-
erated on ADSL2 lines, although they cannot exploit the
advantages of ADSL2.
In practice ADSL2 has become less important since the
ADSL2+ standard has made higher throughput rates pos-
sible.
abbreviation for Asymmetric Digital Subscriber Line 2 with
extended bandwidth
ADSL 2+ (G.992.5) is a further development of the ADSL
standard.
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