Cisco Cisco Aironet 1552WU Outdoor Access Point Guida All'Installazione

Connect the unit only to DC power source that complies with the Safety Extra-Low 
Voltage (SELV) requirements in IEC 60950 based safety standards Statement 1033

The 1550 series access point can be connected to more than one power source. The access point detects 
available input sources and switches to the preferred power source using the following prioritization:

AC power or POC power

External 12-VDC power

Power injector PoE power 

Internal battery power

This unit might have more than one power supply connection. All connections must be 
removed to de-energize the unit. Statement 1028

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord. 
Statement 1023

To provide inline PoE, you must use the 1500 power injector (AIR-PWRINJ1500-2=). 
Other power injectors, PoE switches, and 802.3af power sources cannot provide adequate 
power, which may cause the access point to malfunction and cause over-current 
conditions at the power source. You must ensure that the switch port connected to the 
access point has PoE turned off.

The 1500 power injector (AIR-PWRINJ1500-2=) must be used in an indoor environment 
only.

When the access point is installed outdoors or in a wet or damp location, the AC branch 
circuit that is powering the access point should be provided with ground fault protection 
(GFCI), as required by Article 210 of the National Electrical Code (NEC).