Telephone microfilters, Prestige with isdn, Telephone microfilters prestige with isdn – ZyXEL Communications 660HW Series User Manual
Page 366: Figure 243 connecting a microfilter
Prestige 660H/HW Series User’s Guide
365
Splitters and Microfilters
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 Connect a phone cable from the wall jack to the single jack end of the Y- Connector.
2 Connect a cable from the double jack end of the Y-Connector to the “wall side” of the
microfilter.
3 Connect another cable from the double jack end of the Y-Connector to the Prestige.
4 Connect the “phone side” of the microfilter to your telephone as shown in the following
figure.
Figure 243 Connecting a Microfilter
Prestige With ISDN
This section relates to people who use their Prestige with ADSL over ISDN (digital telephone
service) only. The following is an example installation for the Prestige with ISDN.