Set up guide Install the system extender by plugging if into a outlet. The red light will glow to confine the outlet that you're using is powered. in the meanwhile, the system extender will finish initial installation in few seconds, After the inguinal installation is completed, press the “Set Up’ button on the system extender and red light will became flashing. Within this period, system extender will set np itself in your system. After the set up is completed.