Efficient Networks 5400 Series Manuale Utente

 

5 

Another important step is to record the current router configuration in the worksheets provided in 
Appendix A, “Configuration Data Sheets.” Although the router is already configured for your particular 
network, it is important to record this configuration in case it must be restored for any reason, or if you 
make changes to the default settings and need to restore them at any point. 

This section may not apply to you. Consult your provider if you are unsure.  

Because DSL shares your telephone line, you may need to separate the two signals so they do not 
interfere with each other. A line filter (may be included with some models) prevents DSL traffic from 
disrupting the voice signal on the telephone line, and vice versa. Follow the procedures below to install 
line filters on any device (telephones, fax machines, caller ID boxes) that shares the same telephone line 
with your DSL.  

You will need one of these type filters to connect between the telephone and the wall plate: 

• 

In-line filter: For use with standard desktop telephones. 

• 

Wall-mount filter: For use with wall-mounted telephones. 

You may also need a two-to-one adapter if you want to connect more than one device to the telephone 
wall plate. 

DSL performance may be significantly degraded if the line filters are not installed in the 

correct direction, as illustrated below. 

 

 

 

 

For each device sharing the same telephone line: 

1.  Unplug the device’s cord from the telephone 

jack. 

2.  Plug the filter into the telephone jack. 

3.  Plug the telephone cord (or other device cord) 

into the filter.