Getting Started Guide

Table Of Contents
14
10 Powering the Access Point
The AP can be powered using:
48 V DC power via the 48VDC port, using Cisco Power Adapter AC DC AIR-PWR-C=. Ensure
that the power cable is routed through the strain relief retention clips cast into the enclosure. See
Figure 4.
Power-over-Ethernet (PoE) from the Ethernet cable, from an external power source such as the
Cisco Power Injector AIR-PWRINJ4=.You can also use the AIR-PWRINJ5 Cisco Power Injector
but with reduced functionality.
Any 802.3at (25.5 W) or 802.3af (15.4 W) compliant power injector.
However, when powered by an 802.3af compliant power injector, the access point capabilities will
be reduced to 2x2 with 2 spatial streams for the 2.4GHz radio, 3x3 with 3 spatial streams for the
5GHz radio and the USB port and Auxiliary Ethernet port will also be disabled. With 802.3at
compliant devices the AP provides full operation including the USB port and Auxiliary Ethernet
port.