Power Injectr AP1140/1250/1260/3500 Series The power injector for Cisco Aironet 1250 Series Access Points (AIR-PWRINJ4) contains an integrated power supply that converts 100 to 240 volts AC into 56 volts DC and then injects this power onto the Category 5 Ethernet cable to power the access point. Designed For: Aironet 1041, 1042, 1141, 1142, 1250, 1252AG, 1252G, 1260, 3500p, 3501e, 3501i, 3502e, 3502i, 3502P, 3602E, 3602I