Chapter 1 Introducing the P-660HWP-Dx
P-660HWP-Dx User’s Guide 39
1.5.1 Connecting a POTS Splitter
When you use the Full Rate (G.dmt) ADSL standard, you can use a POTS (Plain Old
Telephone Service) splitter to separate the telephone and ADSL signals. This allows
simultaneous Internet access and telephone service on the same line. A splitter also eliminates
the destructive interference conditions caused by telephone sets.
Install the POTS splitter at the point where the telephone line enters your residence, as shown
in the following figure.
Figure 4 Connecting a POTS Splitter
1Connect the side labeled “Phone” to your telephone.
2Connect the side labeled “Modem” or “DSL” to your P-660HWP-Dx.
3Connect the side labeled “Line” to the telephone wall jack.
1.5.2 Telephone Microfilters
Telephone voice transmissions take place in the lower frequency range, 0 - 4KHz, while
ADSL transmissions take place in the higher bandwidth range, above 4KHz. A microfilter acts
as a low-pass filter, for your telephone, to ensure that ADSL transmissions do not interfere
with your telephone voice transmissions. The use of a telephone microfilter is optional.
1Locate and disconnect each telephone.
2Connect a cable from the wall jack to the “wall side” of the microfilter.
3Connect the “phone side” of the microfilter to your telephone as shown in the following
figure.
4After you are done, make sure that your telephone works. If your telephone does not
work, disconnect the microfilter and contact either your local telephone company or the
provider of the microfilter.