Telephone Microfilters; Prestige With Isdn; Figure 2-4 Connecting A Microfilter - ZyXEL Communications Prestige 650R-31/33 User Manual

Prestige 650R-31/33 ADSL Router

2.4.2 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 purchase of a telephone microfilter is optional.
Step 1.
Connect a phone cable from the wall jack to the single jack end of the Y- Connector.
Step 2. Connect a cable from the double jack end of the Y-Connector to the "wall side" of the
microfilter.
Step 3. Connect another cable from the double jack end of the Y-Connector to the Prestige.
Step 4. Connect the "phone side" of the microfilter to your telephone as shown in the following figure.
2.5

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.
2-6

Figure 2-4 Connecting a Microfilter

Hardware Installation and Initial Setup