ZyXEL Communications P-324 User's Guide download pdf (Page 51)

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P-2602HWNLI User’s Guide

Chapter 1 Getting To Know the ZyXEL Device 51

1.4.1 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 7 Connecting a POTS Splitter

1 Connect the side labeled “Phone” to your telephone.

2 Connect the side labeled “Modem” or “DSL” to your ZyXEL Device.

3 Connect the side labeled “Line” to the telephone wall jack.

1.4.2 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.

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.

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ZyXEL Communications P-324 User's Guide Page 51

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