I can write 500 word article about cctv security surveillance system for P199
My information comes from 5 years of experience.
Experience is the best teacher aside from the basic information that technicality can offer because this has been my job for the last five years.
I was involved in the initial planning of system design and the initial specifications by comparing different CCTV systems in the market, tested it with different wires, fiber and microwave/radiowave signals that will best fit.
Long distance communication as well using the 1-E1 as medium of data transfer for a live video feed from sites as far as 1000 kilometers (air distance) to its central monitoring system.