Cisco AIR-PWRINJ6=, Compliant IEEE 802.3at, External, Voltage AC 100-240 volt, Frequency Required 49 - 60 hertz, Compatible With Cisco Aironet 1810 OfficeExtend Access Point, 1810W. The Cisco Aironet Power Injector AIR-PWRINJ6= increases wireless LAN deployment flexibility of supported Cisco Aironet Access Points by providing an alternative powering option to local power, inline power-capable multiport switches.