The remaining LEDs will not be used. 
 
Illustration 2.2: LED overview 
The ports to connect all cables to are at the backside of the modem. The layout of the ports is displayed in illustration 
2.3. 
Illustration 2.3: The port layout of the TG789VAC v2 
The ports used are the yellow 4-port switch and the gray DSL-port. In some circumstances the red GigabitEthernet port 
is used for FTTH support. This connection must then be made to an external fiber-optic modem. 
The power socket is located next to the power switch on the right hand side on the modem.