Figure 4 Connecting A Pots Splitter; Figure 5 Connecting A Microfilter - ZyXEL Communications P660HW-DX V2 - V3.40 User Manual

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 ZyXEL Device.
3 Connect the side labeled "Line" to the telephone wall jack.
1.5.1.2 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.

Figure 5 Connecting a Microfilter

You can also use a Y-Connector with a microfilter in order to connect both your modem and a
telephone to the same wall jack without using a POTS splitter.
1 Connect a phone cable from the wall jack to the single jack end of the Y-Connector.
P-660HW-Dx v2 User's Guide
Chapter 1 Introducing the ZyXEL Device
37