Stationary Video Security- Getting Started

Clearly InSightBlog

A) Select the Cameras You Will Require to Meet Your Video Surveillance Needs.
What you see is what the camera will view; standing where the camera would be positioned or crawling up a ladder will give you the best view. This is also where the camera will be installed, so you’ll also have to be aware of the cabling path from the camera to the DVR. Look for the approximate distance from the camera and width of your desired viewing area.

Clearly InSight can help you determine the Lens Size you will require to accomplish this from this information. 90% of installations are a standard 3.6 mm lens that will give you a view of about 130′ wide at 100′ distance from the camera (approx 90° viewing angle).
Adjustable VariFocal lens are available on many Clearly InSight cameras.
Determine if NightVision is required and how far you would like to see at night (NightVision is reflected infrared light and is displayed in B/W video).
Determine if you need vandal resistant cameras for high traffic areas.
Determine what image you want each camera to see and what features the camera will require. Are the cameras for indoor or outdoor? NightVision required? Covert or visible? Vandal resistant?

Camera Types
Turret Camera – 60’ NightVision weatherproof vandal resistant metal housing. Lens available from 2.8mm (fisheye) to 12mm. 3.6mm is the most common with approx 90° view angle. Cameras are available with a VariFocal lens from 4mm to 9mm or from 9mm to 22mm. The larger unit also offers 30m NightVision. These cameras can be used indoors or out with -40°C – +55°C temperature range.

Dome Camera – For indoor use.

Bullet Style – These cameras can be used indoors or out. Most of these cameras can be replaced by the turret camera. One advantage with the better quality units is the NightVision distance. Two of the models offer 150’ and 300’ NightVision and feature a sturdy mounting bracket. There are a variety of other cameras from covert to PTZ to specially units. Turrets and bullet style should cover 85% of cameras required.

B) Select the Recording Device, Complete DVR System
Selecting an image recorder can be a little overwhelming with all of the technical specifications available. There are a variety of DVR systems on the market and choosing the right system is critical to your project. Frames per second is one of the industry’s most highly touted specs. This means the number of still images captured in a second. At 30 FPS, the unit captures 30 individual images in 1 second. That’s a lot! Reducing your DVR to 15 FPS, doubles the recording storage, as only ½ the frames are being recorded, while still maintaining a smooth video. This means that the vandal only has 1/15 of a second to not be captured on video, that’s fast!

Selecting a DVR means finding:

Total number of cameras you expect to use, 4, 8 or 16 camera configurations are standard and up to 32 camera DVRs are now available.
Remote access is a standard feature, view from home or while you are holidays even on your Smartphone.
How long do you want the video stored? Typically DVRs now can offer weeks and months of storage.

Discussing your video security project with one of our Video Security Specialists will help you determine the ideal DVR for your application.

C) Select your Power Requirements, Cabling and Cable End Format

Power & Cable; how much cable do you need and how many cameras will you power? Cable is measured from the camera to the DVR with a little extra at each end. Having 10′ extra cable is better than 1’ short in cable. We suggest using a Cat5e or Cat6 cable with baluns. Siamese cable (RG59 Siamese cable) that contains both the video and power in the same cable can also be used. Camera power can be supplied by using individual 12V adapters or by using our recommended regulated power distribution boxes available 4 or 8 cameras (or multiples for more than 8 cameras). All are UL approved. Some cameras with high IR (NightVision) capability may require a separate local power adapter.

D) Select your Video Surveillance Options
Monitors are either separate or built into the DVR; most DVRs include both a VGA and an RCA port, so even a TV can be used for viewing. Using a VGA connection will give you the best picture.
Remote viewing requires a high speed internet connection, best with a static IP address, and a router. This is an easy setup and offers protected access on remote computers, and some most smart phones. Clearly InSight offers free setup to remote access for our customers.
Special cameras, some covert, some with zoom capabilities (both manual and automatic are available), PTZ (Pan Tilt Zoom), standalone IR illuminators and commercial grade wireless kits for building to building wireless are also available.
VGA cables, adapters for BNC and RCA, long range lenses, camera brackets, and monitors are other products required for certain situations.

E) Wireless Options
For specific applications wireless equipment can complete a successful video security installation. Line of site is important as even tree branches can degrade the signal. Wooden and drywall walls will have some effect at degrading the signal and the signal will not pass through stone, cement or steel walls or barriers. Commercial wireless equipment when set up properly, will deliver at least an adequate video signal. However, if cable can be run that is always the best way. Keep in mind too that the remote camera and transmitter require power at the remote site.

Generally the receiver is mounted on the building containing the DVR and a video/power wire needs to be run from the receiver to the DVR. Wireless is available in 2.4 GHz and 5.8 GHz and offers a 1000’+ range with line of sight.

Special wireless systems are available for mobile applications

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