3.Connect the AC plug to an appropriate power outlet.
3 | 2 | 1 | Power |
To AC power 
To SonicWALL TZ 180 Wireless
The Power 
LED on the front panel lights up green when you power the
SonicWALL TZ 180 Wireless. The Test 
LED lights up and blinks while the appliance performs a series of diagnostic tests.
When the Test LED is no longer lit, the SonicWALL TZ 180 Wireless is ready for configuration. If the Test LED stays lit for more than a few minutes, cycle power to the appliance.
SonicWALL TZ 180 Wireless Getting Started Guide Page 13