Cisco SPA Power Supply
1. Connect the Network and Power
2. Connect the DC plug on the power adapter to the DC port on the phone and connect the other end of the power adapter into an electrical power outlet.
3. Connect the Ethernet cable between the Internet port on the phone and the network port on a router or switch to access LAN.
NOTE If you are using Power over Ethernet (PoE) then you do not need to connect the AC adapter. Make sure the Ethernet cable and router or switch is Power over Ethernet (PoE) compliant. Click here for instructions on setting up Power over Ethernet.