Cisco SPA509 User Guide - Page 19

Installing Your Phone Connecting the Power 2 STEP 3 Rotate the tab 180° and re-insert into the phone base. The tab now catches the slot in the handset when the handset is placed onto the cradle. Connecting the Power The Cisco 500 Series IP phones do not ship with power supplies. If you are not using Power over Ethernet (PoE), you must order a Cisco PA100 power supply for each phone. If you are using Power over Ethernet (PoE) to power the phone, the phone receives power when you connect an Ethernet cable from the phone SW port to a switch that provides PoE. If you are using a Cisco PA100 power adapter, insert one end of the power adapter into an outlet and insert the other end into the power port on the phone body. Cisco Small Business SPA50X and SPA51X Series SIP IP Phone User Guide 19