Fig. 7:
ADSL Installation with splitter
The Micro-filters
The G. Lite (ITU G.922.2) operating mode uses reduced transmission power, thereby allowing telephones connected
to the same line to be used via the installation of a device known as a micro-filter. This prevents the ADSL signal
from reaching the telephone and any undesired signals generated by the telephone from interfering with the ADSL
signal.
Fig. 8 shows a typical installation with micro-filter
Fig. 8:
ADSL installation with micro-filter
In cases of ADSL over ISDN, the above information for operations over PSTN is applicable. However, you must bear
in mind that the frequency bands used are different and therefore you must use specific splitters and micro-filters for
ADSL over ISDN.
Teldat S.A.
1 Installing the Router
ATLAS 152
5
