SMC Networks 7904WBRA4 - annexe 1 Manual page 23

Figure 2 (with a telephone set before the splitter)
In the actual application, connection 1 is recommended.
I
Note:
When connection 2 is used, the filter must be installed close to the telephone lines. Do not use the splitter instead of the filter.
Installing a telephone directly before the splitter may lead to a failure of connection between the device and the
office central, or cannot access into the Internet, or slow the connection speed. If you really need to add a telephone
set before the splitter, you have to add a microfilter before connecting to a telephone set. Do not connect several
telephones before the splitter. Do not connect several telephones with the microfilter.
6