Thanks for the suggestion. If you don't mind, could you answer the following questions?
1. Did you drill straight through from the outside to inside wall at the camera, or position the second hole on the inside wall as conveniently as possible, such as near the DC power supply?
2. Did you have a flying or mounted DC connector on the inside for the DC power supply to connect to?
Cheers
Jason
I don't mind at all.
1. I drilled through (with a slight angle downwards towards the outside) the wall at a convenient location. In my case, convenient meant where I was able to access the floor to deliver the cable to the camera location (or as close to it as I could). When I installed this, I didn't have access to any of the power tools I have now, which make things like this easier (like a multitool for example), so I didn't try and conceal the cables above floor level, but they are all out of sight by virtue of their location. The exit holes through the walls are typically a couple of inches above the skirting board.
Externally one of the cables has quite a run as the cable exit is about 6' away from the camera by virtue of the bathroom being inaccessible for cable routing. The others have fairly short vertical drops. I would like to have made them shorter, but the joists made it difficult to do so at floor level.
There is one hole per camera. I used the cables that came supplied with my CCTV kit, which are basically cheap, and easy, but they work. The cable has a screened video connection and two power lines all rolled into one.
I would advise against trying to be clever with routing cables in cavities. From re-reading your question I get the feeling you're wondering if I drilled a hole for the camera then went inside and drilled another for the cable and then routed the cable between the two in the cavity wall. I wouldn't use the cavity like that (depending on insulation type - if present - and cable type, you can get undesirable results).
When routing one of my cables, somehow managed to create a knot that now prevents me from moving the cable as it passes through the cavity. Thankfully there was enough cable outside, but I ended up where I couldn't pull the cable inside or outside. All I did was pass it straight through the cavity.
2. The other end of the cables terminate at the DVR where there is a power splitter that each cable simply connects to. So at the DVR end, there is a BNC and 12v Power connector. The cable then runs all the way to the camera where it is connected to the camera using the sealed soldered joint.