I'd worry about what would happen as the load varies, specifically if the load gets substantially less which could lead to the device getting overloaded. I'd rather sent up something unregulated and regulate it at the top.
Greg On May 8, 2009, at 5:58 PM, Kevin Neal wrote: > So..what about this...get an adjustable voltage power supply. > Install the > RG6 or whatever coax/wire would handle the load/distance. Adjust the > voltage with a meter up top so that you have ~24-28v at your > equipment? > > -Kevin > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] > On > Behalf Of David Hulsebus > Sent: Friday, May 08, 2009 2:59 PM > To: WISPA General List > Subject: Re: [WISPA] Fiber/Copper Combo Wire > > Ive used RG8 coax in the past to deliver 24V DC to about 600ft, but > not at > 1500ft. RG6 has significantly less loss over distance than 24AWG wire. > > Dave Hulsebus > > Scott Reed wrote: >> Belden makes this, but I don't have a number for it. >> >> I would be really cautious if they are running 1500' single run for >> POE. Need to do the voltage loss calculation to be sure to use the >> correct power supply. >> >> Jeff Broadwick wrote: >> >>> >>> Hi All, >>> >>> One of my customers is looking for these critters for a 1500 foot >>> tower. >>> Gig fiber for the data, copper for POE. >>> >>> Any ideas? >>> >>> Regards, >>> >>> Jeff >>> ImageStream >>> >>> >>> >>> --------------------------------------------------------------------- >>> ----------- >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> --------------------------------------------------------------------- >>> ----------- >>> >>> WISPA Wireless List: wireless@wispa.org >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >>> --------------------------------------------------------------------- >>> --- >>> >>> >>> No virus found in this incoming message. >>> Checked by AVG - www.avg.com >>> Version: 8.5.325 / Virus Database: 270.12.21/2104 - Release Date: >>> 05/08/09 06:34:00 >>> >>> >>> >> >> > > > ---------------------------------------------------------------------------- > ---- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ---------------------------------------------------------------------------- > ---- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
