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Three Port Filter
Another style of filter is installed at the same point where the Modem connects to the telephone line. Only a single filter
is required. The connection ports are typically labeled as follows:
•
Line - This port connects to the wall jack.
•
ADSL – This port connects to the Modem.
•
Phone – This port connects to a telephone or other telephone device.
The diagram below illustrates the proper use of this style of filter. Make certain the lines are properly connected. If you
are unable to hear a dial tone with the telephone, check the connections to make sure they are securely attached and
connected to the correct port.
DSL-380T ADSL Modem User Guide
ADSL Device
3-port Filter
55
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