Do you know about - Cctv Camera - Do-It-Yourself premise Guide
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This guide is written for those who do need video protection and can't afford costly premise services, or if the Cctv installer is not ready in your area - the later is more common than one could think. We will cover most common protection tool types, as it is virtually impossible to go over such a wide rang of different protection cameras and recording/video processing tool ready on the market.
I assume anything considering do-it-yourself Cctv premise has basic knowledge of wiring techniques and practices. I am not to be held responsible or liable for damages to the tool due to mishandling or misuse. Remember; while the premise always pay attentiveness to safety. Working at heights and using tools can be dangerous, please consequent all protection practices. Lets jump right to it now.
Planning: First step of any camera premise is to plan camera and monitoring tool locations. When planning for camera locations please take in observation light condition, never install cameras in low light room pointing straight into the sunny area it will add glare to the picture, even if your camera has back light compensation it will not be enough. Use infrared cameras for very dark conditions and/or B/W cameras with as low Lux amount as possible. I am not going to discuss allowable tool selection, as this was branch of my last article.
Selecting the best possible camera locations is not easy, and will directly impact the camera views. Besides light conditions, the distance to the monitoring object is equally important. There are many different types and focal lengths of lenses; your selection will depend on light health and distance from the camera to the monitoring object. In small rooms nearby 500sq. Ft. Cameras with approved 3.6mm lens should be Ok. Keep in mind that most bullet and board type of cameras come with 3.6mm lens, the greater the distance to the monitoring object the longer focal distance of the lens will be needed. There is no ease way of judging lens selection, you can eider guess or buy pro lens selector tool.. Alternatively you can start with your lens selection and if needed get longer or shorter focal distance lens later. Other selection as far as lens selection goes, is to use variable focus lens, which is very versatile approach and takes the guess out of the lens selection process. For those who do not know what variable focus lens is, it's basically adjustable focal distance lens that will allow to change the focal distance within specified range, fore example: 2.6mm - 8mm or 5mm - 50mm.
To maximize cameras coverage and get the most out of the Cctv theory for least amount of money minimize amount of it by placing cameras in strategic places, unless complete area coverage is needed. Avoid overlapping camera views, do not install them with source of light directly in front of it and do not place infrared cameras pointing at each other to eliminate risk of overexposure. These are the most common mistakes that need to be avoided. After the introductory camera locations are predetermined, lets look at cable placement. Make sure that it is authentically possible and practical to run cable to each location, if running the cable to any camera location is for some guess impossible opt-out for alternate location.
Wiring: The most time provocative and foremost part of any camera premise is wiring. Plan your premise determined to minimize cable lengths and insure good ability video signal. Never run cables alongside high power electrical lines, at least 12" spacing between video cable and power lines are recommended. Keep the cable lengths below 400ft and use good ability cable, most population take the cable for granted, but it is authentically very foremost aspect of any installation. The Cctv theory is only as good as its weakest component. I regularly stick with Rg59U with power Coleman cable (Yes it is Us made) sometimes called Siamese type cable. It is combo cable and will transmit video and power, as an alternative it is sometimes possible to use less expensive Rg6 approved coax cable with separate run of 18/2Awg for power.
The Siamese cable is less bulky and easer to run, distribution power provide is recommended with this type of cable as power will be supplied from common place right next to monitor and recording equipment. Using Siamese cable makes for more clean and neat installation, as only one line is required for each camera. Running Rg6 cable with separate run for power is the likely explication if power outlets are ready near each locations. In this case personel plug in power supplies are used to power them with power cable running as separate and independent line to the camera. Both types of cables are ready at dvrexperts. When running the cable it is good practice to leave join of loops of extra cable at both camera and monitoring locations. This extra distance of cable is needed if in the hereafter monitoring or location will have to be moved slightly. After the cable is in place, the labor-intensive part of premise is over, now we can get to the fun part of installation.
Camera mounting: Most s come with mounting screws and bracket included, attach the bracket firmly and remember that in some cases different brackets than the ones supplied with the cameras could be needed.
Attach the camera to the bracket and adjust the position approximately at this time, we will come back to it later. Typical protection camera is powered by 12Vdc or 24Vac and power input type is screw or push terminals or 2.1mm plug. Power relationship will differ for each type of power provide and input style. Most cameras are 12Vdc, in this case it is foremost to inspect polarity or you may damage the camera. The power cable has two conductors and in most cases it will be red or white and black cable. Use the red or white for positive and black for negative terminals. If it has screw or push terminals power input join together the cable directly observing polarity, if it is 2.1mm plug, a special 2.1Mm Female Dc Plug with Flying Leads have to be associated to the cable again keep attentiveness to polarity. The 24Vac relationship is very similar, with one major divergence - polarity is not important.
Next step will involve some special tools and accessories. We will attempt to go over premise process of Bnc crimp-on video connector, I will post video demonstration of Bnc crimping techniques shortly so please check the web sites mentioned in this article often.
Steps:
1. Take off about 1/2-inch long outer jacket from the end of video cable exposing braid.
2. Slide the crimping barrel onto the cable with the larger diameter facing end of the cable.
3. Pull the braid backwards exposing the inner isolator material and Take off 3/8-inch of it so you have now core conductor exposed.
4. The main part of Bnc connector has a small hole on one side; push the exposed core conductor of the cable into that hole as far as it will go.
5. Push all the braid folded backwards in step 3 onto the Bnc connector and spread the braid evenly nearby connector.
6. Push the crimping barrel onto the Bnc connector all the way.
7. Using crimping tool, squeeze the crimping barrel onto the Bnc connector, now the cable braid is compressed in between crimping barrel and Bnc connector assuring secure connection.
Bnc connector is on, lets hook it up now and repeat the steps for each camera, if you have purchased 16 camera theory you may want to get some coffee first.
Monitor and recorder connection:
Cameras are on, its time to make final connections. I will focused on approved Cctv monitor, standalone Dvr recorder and distribution power supply, as this is the most beloved and likely explication for most Cctv installations.
First we have to install Bnc connectors on this side as well - its time for that coffee again. It is good idea to make room for monitor and recorder now and setup some type of desk, shelf or rack to place all the tool on.
We need the monitor and recorder in place so we can settle allowable power provide location. Power provide should be mounted within join of feet from the Dvr video inputs. After power provide is secured separate the power conductors from the Siamese cable, and run it to power supply. Like we did with the cameras if 12Vdc power is used, we need to watch the polarity, each concluding on the power provide is marked, so there should not be any doubt. Make sure the power provide is not plugged in to the power outlet yet.
Connect video cables to the Dvr video in ports. We need one video cable to join together the Dvr with the monitor, if you do not have one you may cut piece of Siamese cable separate the power conductors from it and install Bnc connectors on both ends, you now have the cable. join together the Dvr monitor out port to monitor video in. We are approximately ready to power up everything; there is only one more thing to take care before we do that.
We need to safe the tool from power spikes by plugging it into power conditioner or best yet, buttery backup unit. If the premise location is experiencing frequent power outages, the backup unit is strongly recommended. To enlarge the backup time only plug the Dvr and camera power provide to the backup unit and the monitor to regular power strip, this way if we do loose power for some time the Dvr and cameras are still functioning as general while monitor is off. Turning off monitor will not influence Dvr and cameras in any way; it is authentically good habit to turn the monitor of if not used to enlarge its life.
Power on and final adjustment: Yes... We are now ready to power it up for the first time, if this is your first premise it may be nerve-racking experience. Start with turning the cameras power provide on, turn the monitor on as well followed by Dvr system. The stand-alone Dvr, after self-test will show cameras or setup menu on first power up depending on your model.
To setup the Dvr refer to the hand-operated for allowable settings. Go over each camera view to settle if the view is authentically what you want, hardly ever it will be without supplementary readjustments. To properly and authentically adjust the positions, the test monitor will be very handy if not needful tool. Go to each camera location and join together the test monitor to adjust the position to your preferences, if satisfied secure camera bracket adjustment screws - we will not go back to this camera anymore.
Conclusion: Congratulations! You have just completed your most likely, very first premise of Cctv system. Visit our store fore more facts on guard cameras, Dvr recorders, tools and accessories.
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