Fig. 12:
DSL connector (ADSL & ADSL2+)
Note
The cable approvals may depend on the recommendations established in the country of installation of
equipment. The cable always must be 18 A WG or greater.
The
Full Rate
ADSL (ITU G.dmt or G.922.1) operating mode uses a higher transmission capacity that does not allow
the use of telephones directly connected to the same line. It is necessary to use a mechanism known as “
splitter
”,
which separates the band frequencies for voice telephony from those used by the ADSL connection to transmit data.
This way, interferences between the telephone service and ADSL service are avoided. The next figure shows a typic-
al installation with a
splitter
.
Fig. 13:
ADSL installation with a splitter
The G. Lite (ITU G.922.2) operating mode uses reduced transmission power. It allows the telephones directly con-
nected to the same line to be used through the installation of a “micro-filter”. This device ensures that the ADSL sig-
nal does not reach the telephone, and that undesired signals generated by the telephone do not interfere with the
ADSL signal.
A typical installation with micro-filters is shown in
Fig. 14
on page 15:
3 Components and Power Supply
Alcatel-Lucent Enterprise
14
OA5725R Router