We have recently been assigned to help with the development of a system that will power non-computer/non-network devices located at various places within a 10,000 square ft facility. Most of these devices will operate on a fairly wide range of DC input power.

The availability of surplus Cat-5 cable and the availability of low cost POE switches has been suggested as a method of powering these devices.  There also appears to be some good, low cost installation options for all of the required system elements.

The activity and health of the devices is directly related to their power consumption. Is there a standard CentOS feature or commonly used App that would facilitate monitoring the power being supplied by each of the individual POE switch outputs?  

Thanks in advance for any information shared.