Cisco Systems 1552H Manual De Usuario

The access point can be powered by one of these methods:

PoE—56 VDC; for 1552E and 1552EU access points

AC power 

110 to 240 VAC for a 1552I access point—

110 to 480 VAC for 1552E and 1552EU access points—

120 VAC—

External 12 VDC

POC—40 to 90 VAC (Quasi-AC); only for a 1552C and 1552CU access points

In all cases above, the AC branch circuit powering the access point must be limited to no more than 20A 
from the over-protection device supplied by the user. This branch power protection must meet all local 
and national electrical codes.

The power injector provides (AIR-PWRINJ1500-2=) 56 VDC to the access point over the Ethernet cable 
and supports a total end-to-end Ethernet cable length of 100 m (328 ft) from the switch to the access 
point. 

The PoE-Out port is disabled when the access point is powered by the power injector.

When not using the AC input connector to power the 1552E or 1552EU (for example when powering 
using the Cisco power injector), it is important to cover the AC power entry connector. The correct cap 
is Remke part number 75-0086 (

When your access point is powered by an optional power injector, follow these steps to complete the 
installation: 

Before applying PoE to the access point, ensure that the access point is grounded (see the 

Review 

 to identify the components needed for the installation.

The 1550 power injector can only be used in an indoor environment, therefore, the cable from 
the injector must travel from the protected location to the outside mounted access point.