Capulcos 0 Posted September 9, 2004 I see all different specs on camera power supply. Is there an advantage to one over the other. Is 24v better for long runs? Share this post Link to post Share on other sites
Cooperman 0 Posted September 10, 2004 The advantages of 'line lock' with 24v AC, are not really as beneficial as they used to be. 12v DC is easier to 'back up' with an independent standby power supply, and of course, you don't have the potential for 'earth loop hum' which is always a risk on larger sites where any AC voltage is used. Provided the correct grade of power supply cable is used, a higher launch voltage can be applied with both options, to allow for voltage drop over longer cable runs. In most cases, the 12v cameras are generally smaller because their is no internal transformer in the power supply section, and for the same reason, they generate less internal heat. Share this post Link to post Share on other sites
