Since you still need AC outlets I can't imagine the savings would be all that significant. The industry seems to be headed to figuring out how to get the enormous installed base to LED. Since electricians are the Obrien pulling the CAT5 now I can't see how you get the cost down.
On Wed, Apr 27, 2016, 7:53 PM Eric Kuhnke <[email protected]> wrote: > http://www2.cree.com/smartcast-landing-page > > Would you build it? > > Seems to make sense, considering the low cost of midspan PoE injectors > these days. Or even old 802.3af 100Mbps switches you can get used (Cisco > 3560, 3750). > > One of the neat things about doing PoE lighting is that you could control > all the lights in a building via a shell script and SSH session into a PoE > switch, turning on and off ports based on cron jobs, schedules, as a result > of a script server receiving some event, etc. This could be done with a $50 > box running Linux. > > No need to run any vendor proprietary software of any sort. > > One of the things I realized when thinking about this is that it could > dramatically lower labor costs to install lighting in a large building. > You'd be looking at the hourly labor rate for low-cost "low voltage" alarm > cabling/cat5e pulling install technicians and not licensed electricians > (apprentice or journeyman). Electricians would of course need to do the > rest of a building's 120/240VAC, but not the lighting. > > > > >
