LANCOM 1811 Wireless DSL – LANCOM 1821+ Wireless ADSL
Chapter 1: Introduction
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hake routines during connection establishment ensure that the standards
ADSL, ADSL 2 and ADSL 2+ are intercompatible.
Parallel to data transfer, ADSL also provides full and unlimited support for the
classic applications in telephony (telephone, fax, answering machine, PBX).
This is facilitated by splitters which separate the voice frequencies from the
data frequencies.
Some models feature an integrated modem for ADSL/ADSL 2+. It can be
directly connected to the splitter with the supplied cable.
If the device does not feature an integrated ADSL modem, then the router is
connected to a separate ADSL modem, which in turn is connected to the split-
ter.
LANCOM 1811 Wireless DSLs can also be used for Internet access via
other broadband connections (e.g. cable modems) as long as they
Internet
Splitter
Router with integrated
ADSL modem
Telephone
PSTN
Splitter
ADSL prover
Switching
nodes
DSLAM
Subscribers
Internet
Splitter
Router
Telephone
PSTN
Splitter
ADSL prover
Switching
nodes
DSLAM
Subscribers
ADSL
modem