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Jan 22, 2016 at 22:04 history edited gregmac CC BY-SA 3.0
point about easy to remove
Jan 22, 2016 at 17:48 history edited gregmac CC BY-SA 3.0
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Jan 22, 2016 at 17:44 comment added gregmac @JPhi1618 Because you have to worry about voltage drop. Alarm wire in particular is usually 22 AWG -- after about 15', a 5V source at 1amp will be 4.52V, which is the minimum the USB spec allows for. I know from experience this can have a big effect: with a 10" Tab S connected to a 10' cable and leaving the screen on 24/7, after a few days, it would actually run out of battery. Changing nothing but the cable to a 6' solved this problem. Using off-the-shelf PoE avoids the need for DIY voltage regulator circuitry and/or hacked together cables.
Jan 22, 2016 at 16:59 comment added JPhi1618 If your solution is basically to run low voltage cable all the way there, why worry at all about Cat5 or (somewhat) expensive PoE injectors? Just run some alarm wire with 5VDC and call it a day.
S Jan 22, 2016 at 4:58 history suggested Sam CC BY-SA 3.0
802.11af --> 802.3af
Jan 22, 2016 at 4:38 review Suggested edits
S Jan 22, 2016 at 4:58
Jan 21, 2016 at 21:52 history answered gregmac CC BY-SA 3.0