Senin, 19 Mei 2014

CCTV outdoor cameras?




neil2jo


I am due to install a few outside cameras and have 2.1 jacks and BNC connectors. The camera has a lead of around 12inches with receiving heads. I obviously need to extend these back the to DVR and have the correct connectors.
My question is if the wall and/or access is greater than 12inches, thus my extension connections will be on the outside how/what do I need to keep them IP protected against rain/snow etc?



Answer
Hello

I also gave you some links, I recommend using Ascendent Technology Group for the equipment they have great products and good technical support. http://www.ascendentgroup.com/

A good cameras will allow you to put the wiring through the mount, you can also use Baluns and CAT 5 cabling, and I would suggest 18 gauge for the power. make sure you use 24V AC for outdoor cameras to reduce the power loss if it a run of mroe then 75 feet.

Baluns: http://ascendentdvr.com/baluns/43_1.html
CCTV video baluns, also known as UTP baluns, allow traditional coax cable to be replaced by category 5 and other forms of twisted pair wire in CCTV video camera & surveillance installations. Video baluns allow installers to use more cost effective structured cabling techniques to wire security cameras. By using video baluns, UTP wire such as cat-5 can be run over longer distances easier than coax cable and for less money. Active balun transceivers enable UTP wires for cameras to be run distances up to 3,000 feet.

CCTV Equipment:

Always buy DVR and security equipment from a good brand name manufacturer like Pleco, Bosch, Honeywell and Ascendent: http://www.ascendentgroup.com

Unfortunately many people buy very low end systems which have poor frame rate and bad image quality because they buy from Amazon, "spy stores" Lorex, Q-see, NCIX, new-egg, and other online retailers who sell cheap products for china there were never intended to be anything more then a nany cam and should never be used to provide security.

Not all DVRs are created equal, in fact there are many options that offer varying performance much like the automobile industry. In the world of DVRs you can find the equivalent of a $10,000 Kia and a $350,000 Ferrari and everything in between. Both have 4 wheels and windshield but that where the similarities end, itâs under the hood that counts. Just like any other consumer electronic in the end you get what you pay for.

The smaller the files size the more images are able to be sent, and the faster they can be processed improving both FPS and speed. File size is the heart of any DVR and goes far beyond just its streaming capabilities, as it also determines the recording storage time, how much you can back up at once, how fast it renders and searches video. The file size of a DVR impacts the performance of the DVR in just about every aspect from speed to longevity and is often the most important spec of any DVR.

If you are buying a DVR and streaming is a high priority I suggest you ask for a demo and connect to the DVR to make sure it is able to stream fast enough for your needs. Most DVRs say they have remote viewing but it is often too slow and laggy to be of any use especially if it is a standalone.

Just like any other consumer electronic in the end you get what you pay for. Most retailers and sellers make about a 40-80% profit margin, this is after costs like shipping and overhead. That means when you buy a product that costs $100.00 the manufacturer usually has only spent $30 to build it which simply means itâs not a good product and will probably have a working life of about 2 months. Cheap products are like disposable razors they are NOT designed to last for a long time and you will end up replacing them every 2 months.

DVRs need to be good quality as they run 24/7 (20X more than the average electronic device) and process anywhere from 30-480 frames per second which in a year is over 15 billion images, and a good DVR should last 3-5 years.

Also as far as night vision or IR cameras go most do not give good images in the dark. Many companies claim good night vision but there are only a handful of brands who give night vision over 30 feet out doors. normally if a cameras is rated 150 feet of IR it will give you ok images at 30 feet at night and good images at about 20 if rated for 60 feet you might get 15 indoors and will be useless outdoors.

2 Great IR outdoor cameras
http://ascendentdvr.com/ascentseries2/52⦠($95)
http://ascendentdvr.com/vistaseries2/vis⦠($235.00)

Economical DVR's
Two good economical DVRs I would recommend are Ascendent's AVP-4120 DVR or Pelco's DX-400. The AVP-4120 uses the latest H.264 codec to improve streaming and recording time, and will allow PCs and smart phones to remotely view and control your cameras. These are the DVRs I would recommend that are good quality and affordable from companies who stand behind there products.

Again if you are going to buy no name products save money and get dummy cameras they are just as affective and you will be less disappointed.

Hope this Helps,
williammorales93@ymail.com

Need help w/ outdoor security camera system.?




melissa


I need to buy an outdoor security camera system. Night vision and distance are a must. Need at least 4 cameras. Any recommendations? This will be my first security cam purchase so any info will be greatly appreciated! oh yeah, I'd prefer a reasonably priced system... Like maybe below $600 and still a good system. Thanks for the help 8-)


Answer
Hello

Peter that is the worst advise I have heard in a long time Costco, Walmart and online companies like Lorex (coscto sells lorex) sell very low quality cameras and often don't offer watermark so there images cant even hold up in court.

Giving advice when you don't know what your talking about is like giving direction to a place you don't now where it is, all you doing is wasting there time and in this case there money too.

The cameras from costco and walmart are used as nanny cameras that's all there good for.
Most IR cameras give you about 1/3 of the vision as advertised they call it "projected" distance now this had no coloration with what the camera will actually see at night.

A Varifocal (can change what the camera can see) lens with a good aperture 2 good examples are 5-50mm or 2.9~10mm. A fixed lens almost never works when installing a camera outdoors. Again to ensure you are getting a good lens and optics stick to name brands and avoid online retailers, eBay, Swann Lorex, Costco and Q see and other cheap no name products.

Also if you are buying good cameras get a decent DVR.


A good outdoor Camera will have

High resolution (520TVL or higher)
Good signal to noise ratio (S/N 49DB or 50DB)
A true Sony CCD (not Chinese knockoff)
Rugged enclosure to handle vandals and environments
At least IP 66 and a suitable temperature rating for you region
IR LED's to see in pitch dark: active IR rating not projected IR as projected IR has no coloration with how far the camera can see.
2 or 3 different sized LED;s 1 size LED one type of illumination means you either wont get distance or wide angle and you want both.

I would go with the VIS-56IR-2910
http://dealer.ascendentgroup.com//dvr-irâ¦

this camera will give you 110 feet of clear vision in complete darkness and great images by day its the on I recommend for budget customer who need outdoor IR camera.


Cameras that have high resolution, and great signal to noise ratio can reducing file size on DVR's up to 50% and offer better images.

Low budget Economical
ASC-520B21IR-36
Economical Infrared Bullet Camera
520TVL
see 25 feet outdoors
Fixed 3.6mm lens
35~-25C IP 66
MSRP $110.00

http://dealer.ascendentgroup.com//ascentâ¦

Cheap option would never suggest a camera lower then this one
(still much higher quality then Costco, Lorex, Swann, Qsee, and other no name products imported from china)

ASC-380B24IR-36
Infrared Bullet Camera
380TVL
see 25 feet outdoors
Fixed 3.6mm lens
35~-25C IP 66
MSRP $75.00




Not all CCTV equipment is created equal, in fact there are many options that offer varying performance much like the automobile industry. In the world of CCTV you can find the equivalent of a $2,000 golf cart and a $350,000 Ferrari and everything in between. Both have 4 wheels but that's where the similarities end, itâs under the hood that counts.

Just like any other consumer electronic in the end you get what you pay for. Most retailers and sellers make about a 40-80% profit margin, this is after costs like shipping and overhead. That means when you buy a product that costs $100.00 the manufacturer usually has only spent $30 to build it which simply means itâs not a good product and will probably have a working life of about 2 months. There is a reason these products are 1/10 of the price of good and reliable DVR brand names. The type of seller these products attract are online sellers (ebay) and will make profits margins as low as 2% which means they canât afford to offer good service or allow for RMAs (returns). Cheap products are like disposable razors they are NOT designed to last for a long time and you will end up replacing them every 2 months.


Ascendent makes cameras fir military and critical infrastructure so you know there good quality and there price is about 20% below Bosch and Pelco and offer higher specs and performance.
Not the cheapest but they are the best bang for the buck.

Military, Government, Homeland security
Ascendent's Terra-360-1/2EM-101000/202000 + 2x 500MIRL-850 2x LIR5KM-860

At night can see 1km 2km 3km 4km 5km 6km 7km and 8km in pitch dark using high powered continuous laser illumination and 25km by day with the Terra's 20-2000mm lens.
MSRP about $70,000~200,000 depending on model
http://www.ascendentgroup.com/pdfs/Terraâ¦


For oil and gas marine and other corrosive and industrial and corrosive environments.
TERRA-550EX-65300
Explosion-Proof PTZ Camera
25-1500mm lens (15km by day)
Laser illumination provide images at 4km in pitch dark
Explosion proof made of stainless steel 316L
MSRP $50,000~140,000
http://dealer.ascendentgroup.com//industâ¦

For Corporate and municipalities
TIR-7261 (100,000 hour IR life time)
Long range IR camera
See in pitch dark 250m
2km by day using 7-260mm lens
-40~55C IP 66
MSRP: $9400
http://dealer.ascendentgroup.com//dvr-irâ¦

High end Residential or commercial
SUMMIT-550-3FL
Long-Range IR Camera
See 200m




Powered by Yahoo! Answers

Tidak ada komentar:

Posting Komentar