ZyXEL p-660hwp Guia Do Utilizador

 Chapter 1 Introducing the P-660HWP-Dx

P-660HWP-Dx User’s Guide

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

1 Connect the side labeled “Phone” to your telephone.
2 Connect the side labeled “Modem” or “DSL” to your P-660HWP-Dx.
3 Connect the side labeled “Line” to the telephone wall jack.

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. 

1 Locate and disconnect each telephone. 
2 Connect a cable from the wall jack to the “wall side” of the microfilter.
3 Connect the “phone side” of the microfilter to your telephone as shown in the following 

figure.

4 After 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.