Cisco Cisco Aironet 1250 Series Access Point Guía De Instalación

You can use the AP Pwr, Fault, and AC Pwr LEDs to assess the unit status. 
Two indications are available: solid green or dark. The LED meanings are as 
follows:

AP Pwr LED—Turns solid green after successful discovery; indicates 
that the power injector is supplying power to the access point.

Fault LED—Turns solid red when a fault occurs during discovery mode 
or power-up.

AC Pwr LED—Turns solid green when the power injector is receiving 
AC power and is ready to provide power to the access point.

You can mount both models to most vertical or horizontal surfaces. The 
power injector does not ship with a mounting kit. You must provide the 
fasteners for the surface on which you intend to mount the injector. 

The power injector has two 1/8-in (3.1-mm) elongated mounting tabs, one on 
each end, that you can use to secure it to the surface. To mount the power 
injector using these tabs, you will need two #5 fasteners of the appropriate 
type for the surface on which you are mounting the power injector.