Quality CCTV Camera Installation - Expert Advice on CCTV Installation - Aura Business Solutions



CCTV Installation and Wiring Options

Today there are a lot of options when it comes to choosing a quality CCTV security system. You may decide to go with a traditional analog systemHD-SDIHD-CVI or even an IP network based security products.  Mostly in Kerala and generally in India the market is flooded with cheap imported CCTV Systems and non-professional CCTV Installers.  Most of these installers do not have genuine license or dealership from respective CCTV company who offer cheap products and cheap installation costs.  Before committing work to them think twice, after all it is about the safety and security and you should not make any compromise on quality when it comes to Security System Installation.


One thing all of these options have in common is you will probably have to run some sort wire to the cameras. Yes, there are some “Wireless Security Camera” solutions available on the market today, but if you do some research you will find that there are a lot of limitations to wireless security cameras. Most CCTV professionals would probably not recommend a wireless system in an environment where up-time and security are critical.
That being said, we will be talking about a fully-wired system in conjunction with a storage device such as a DVR (Digital Video Recorder) or NVR (Network Video Recorder).




ANALOG SYSTEMS

Analog, HD-SDI and HD-CVI cameras will need two wires run to them. One for video transmission and a set of power wires in order to power the camera. You could run a coax wire and separate power wires but most CCTV professionals choose to use
Siamese Cable”. Siamese Cable is a manufactured coax cable with a set of power wires attached to it. The power wires can be split off from the coax in cases where your power source may not be in a close proximity to your recording device.


NETWORK IP SYSTEMS

IP cameras use digital video transmission over CAT5 or CAT6 cable. In most cases you run your video and power to and from the camera on the same CAT5 or CAT6 wire, assuming you are using a POE (Power Over Ethernet) power source such as a POE injector or POE Switch.

Some NVRs come with built in POE,  but in most cases it is recommended to use an external POE switch from leading installers like  Aura Business Solutions.  When using an external POE switch all of your CAT5 or CAT6 will run directly from each camera to a POE switch that is connected to your local network. Then you simply connect your NVR to the network and you are all set.

Most IP cameras also come with an additional power wire if you choose not to use POE and power them with 12v or 24v power as shown below.
If you are going to power your IP camera with 12v /24v power  you will still run all of your CAT5 or CAT6 from the camera to a Non-POE switch (usually significantly less expensive than a POE switch) but you will run an extra set of power wires from a power source to each camera.



RUNNING YOUR CABLES

Now it’s time to run your cable. The following will cover 2 popular scenarios.
Scenario 1: Running your cable through your attic and mounting your cameras to the soffit. This is a common installation option, provided you have access to your attic and your soffits are also accessible.

First you have to choose the placement of you recorder and power supply. Some people simply have them located in an office or a room within their home.  Others prefer having them in a more secure location such as in a lockbox, hidden in a closet, or even in the attic itself.
The image below shows the recorder and power supply inside a room of the home. Power and video wires run up the wall into the attic to the location where the camera will be located and out a small hole in the soffit were the camera will be mounted.
Scenario 2: Another option is to run your cable through an exterior wall and then use conduit on the exterior of your structure to run your cables from one camera to another. This is a great option for those who do not have an attic or limited access to one.









MOUNTING YOUR CAMERAS

Once you have run your wires to the desired location you can connect your camera. In some cases where the cables are coming out of the soffit it is possible to connect your wires together and tuck the connections up into the hollow area of the soffit, then mount the camera directly to the soffit.
In situations where you’re running your wires through a solid concrete or brick wall that the connections cannot be tucked into, it is common to mount a junction box.

JUNCTION BOXES AND CONDUITS

Junction boxes are particularly useful when running your cable through conduit on the exterior of your structure as they serve as a weather proof container protect your power and video connections from the elements and also provide you with a flat surface to mount your cameras to.
First you will pull your wires through the access hole on the back of the junction box. Then mount the junction box to the wall. You may have to drill a hole in the junction box cover big enough to feed your camera connections through. Next, connect the camera to the power and video connection(s). Then screw the cover on to the junction box. Now you can mount you camera to the junction box. See the diagram below.
When used on a soffit, a junction box will sometimes be helpful in order to lower and drop your cameras below obstructions such as deep fascia boards as shown below.




CONDUIT INSTALLATION – METHODS SURFACE INSTALLATION
In surface installation, the conduit is fixed using saddles or spacer bar saddles. The maximum recommended spacing between the saddles is 1.0 m for the horizontal conduit runs and 1.25 m for vertical conduit runs. Saddles should be fixed 20 cm on either side of bends or boxes. As PVC conduit expands, with increasing temperatures, for expansion/contraction movements in long straight runs, the use of an expansion coupling is recommended every 6 m to absorb expansion and avoid conduit buckling.

FIXING

Holes are drilled on the base of the body. It is mechanically fixed to the desired surface using flat head screws. The distance between the fixing centres should not be more than 40 cm. And it should be not more than 15 cm from the end of a straight run.

JOINTING

A fine toothed tenon saw and mitre block should be used to cut the channels. This will ensure accurate clean cuts, leading to an easy and efficient installation. In all straight joints, it is important to stagger the joints of the channel body and lid to give a better protection and reduce joint visibility. On straight runs longer than 6 m, allowance for expansion must be made. For corners, the channels must be mitred and for T- joints it must be slotted for cable entry.


Do remember, unauthorised persons should not be allowed to take your CCTV Camera Installation.  It needs expertise and for the longivity of the CCTV System, the installer must use genuine accessories and cables.  Do you have doubts about CCTV Camera Installation?  Or are you not satisfied with your exisiting CCTV Camera System?  Please feel free to call us on 9496638352.  Our services are available in Kollam, Alappuzha, Pathanamthitta, Kottayam, Idukki, Cochin, Thrissur, Palakkad, Coimbatore, Dharapuram and Palani.


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