About CCTV Power Supplies When the time comes to build your surveillance system, you'll have to choose a
CCTV power supply
There's more to it than plugging an adapter into an outlet in the wall. With that said, here are a few features, as well as differences among power supplies. 1. Single Port and Multiple Port- Are you going to use a single power box to provide power to your cameras or do you need s single port power for each camera? If you only have a few cameras, then consider using a single adapter at each security camera. If you only have four or less cameras, then you should have no problems using a single power strip. Having a single power box is ideal for those who are planning to use many cameras and for those who desire a clean and neat installation. This choice usually depends on the person's power requirements. It also comes down to aesthetic preferences, but the choice is completely up to you when it comes to single port or multiple port. 2. DC or AC Power Supplies- The majority of the time, 24VAC is what powers security cameras, but throughout the decade, smaller and more compact cameras have come to the market and now there are many 12VDC options. Both of these are low voltage. This means they are flexible when it comes to installing
cameras. 12VDC requires no rectifier and it only uses a small footprint, but when this power supply was originally designed, it was for surveillance applications that were covert. However, it is now popular among large types of security cameras, but there is a downside to it. The downside is it's not really a good solution for cable runs that are long, and 12VDC often costs far more than 24VAC power supplies. 24VAC are distributed via multiple ports, but they can be used in single applications. One of the best things about these power supplements is they don't cost that much money. Also, they can work very well with long CCTV cable runs.