gtxkid 0 Posted May 14, 2011 Example: If you have a 700ma camera. How far can you go before you jump to say a single pair 16 gauge. Share this post Link to post Share on other sites
Soundy 1 Posted May 14, 2011 I run 24VAC over Cat5 all the time. Overall losses are about a quarter that of 12V (half because of the higher voltage, and half because a device with a given power requirement will consume half the current when run at twice the supply voltage). There's a great Cat5 calculator here: http://www.netkrom.com/voltage_loss_over_cat5_calculator.html Using a 24VAC source, 0.7A current draw, and two pairs of the Cat5 for power, at 300' you'd see a loss of 2.6V, which should still land you well within the spec of most 24V cameras. Bump that up to 3 pairs, and your losses drop to 1.3V. Two pairs at 100', you're seeing only 0.8V loss. And so on.... Share this post Link to post Share on other sites
