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Old 02-08-2013, 07:33 PM
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JimN JimN is offline
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Join Date: Jul 2004
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Quote:
Originally Posted by JohnE View Post
And again, why would anyone want to do that looking at Dylan's (Or my) backyard and driveway? I understand it is different if you are surveying something with more value.

I'm going to do some cameras at the house I'm building. I have limited experience with cameras, but my brother in law (how's that Pete???) works for a higher end security company (they do gillette stadium and many other big clients) is going to give me some suggestions. I'll report back when I figure out what I'm doing
Well, they could watch for everyone to leave and go to the house and do a bit of "shopping".

If the budget isn't large, pass on IP-based cameras, but run Cat5e to each camera location instead of RG59/18-2 cable- baluns can be used for the video feed and power can be run on the other pairs. If you decide to change to IP later, it's usually a matter of putting an RJ45 on the end and plugging it in. At the head end, a PoE (Power over Ethernet) adapter would feed the cameras. Some cameras have RS485 control- one pair of wires connects to the cameras that have this and to a specific pair of terminals on the DVR and this allows camera setup changes to be made without going to the camera, itself.

Speaking of power, 24VAC is the way to go. The line loss from using a DC power supply shortens camera life and causes problems with ground loops. If a camera that uses DC happens to be the best choice for one or two locations, an AC-DC converter can be used at the camera location (never at the head end unless it's very close to the camera that needs it).

Last edited by JimN; 02-09-2013 at 01:08 AM.
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