Professional Analog Cameras connectors

This type of separate power connection is quite typical of professional cameras, especially box models that are usually used in special projects.

Note in the image below, this professional camera can be powered with either 24-volt AC (Alternate current) or 12-volt DC (Direct Current) power.

In day-to-day situations for small projects, it is rare to find professional analog cameras of this type due to cost-effectiveness, especially when it is better to use modern IP cameras rather than expensive professional analog cameras.

If the design is small and your concern is cost, it is currently more common to use traditional analog cameras with siamese cables and power connectors.