ZyXEL Communications Prestige 662HW Series, Руководство пользователя

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Prestige 662HW Series User’s Guide
Splitters and Microfilters G-1
Appenidx G
Splitters and Microfilters
This appendix tells you how to install a POTS splitter or a telephone microfilter.
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.
Diagram G-1 Connecting a POTS Splitter
Step 1.
Connect the side labeled “Phone” to your telephone.
Step 2.
Connect the side labeled “Modem” to your Prestige.
Step 3.
Connect the side labeled “Line” to the telephone wall jack.
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.
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.