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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 powering source, the following operations are supported:
–
For 1852I – the AUX and USB ports are disabled. Both radios operate at full operation.
–
For 1852E – the AUX and USB ports are disabled. The 2.4GHz radio will shift to 2x3:2SS
operation and the 5GHz radio will remain at full operation.
With an 802.3at or the AIR-PWR-C= as the power source, the AP1852I/E provides full operation
including the AUX and USB ports.
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