Posts Tagged ‘ cctv power supply ’

CCTV Power Supply and Electricity

Written By:
Thursday, April 16th, 2015

Using the right CCTV power supply is important. Without the right power supply, cameras will not function properly. This isn’t good if one day your camera goes bad and you get robbed. You would not have any footage to back it up or prove that you got robbed. With multiple options to choose from we offer a huge variety of power supplies.

You need to figure out before you purchase a power supply how many cameras your system will be running. You also need to know how much current each camera will use. I recommend to get a bigger power supply then you need in case you want to get more cameras, or just to make sure your power is adequate.

Knowing how many cameras you want is the most important role in determining whether you need a power adapter or a power supply box. If it’s just one camera you’ll only need a 12v DC power supply, such as the one pictured below.

1 Amp Power Supply

If you have 16 cameras then you might want a power supply box. You can mount a power distribution box on a nearby wall and plug it into a standard outlet. A power distribution box is also secure as it is a metal box and is usually locked and requires a key. They are also durable and sometimes weatherproof. A power distribution box makes it easier to manage the power for multiple cameras at a central point, which is usually near the DVR. It makes the camera installation look better and it’s easier to run cable and have it organized. Instead of having 16 power supply plugs, you can just connect all the wires into the power distribution box. All your wires that power your cameras can run easily into the power supply, instead of have wires hanging all around your DVR. The power supply plugs into a standard 110 volt wall outlet. There are 4,8,16,and 18 channel power supply boxes.

8 Channel Power Distribution Box

With IP cameras a POE switch can be used to send power over the Ethernet cable. POE (Power over Ethernet) has made it a lot easier to power cables and have network access. By having them be powered over the samecable that delivers data it makes it a lot cleaner installation and less trouble to the installers, or yourself if you are doing your own installation. An analog camera usually requires two cables. One for video/data and one for power. With an IP camera, the video and power can run down the same cable using a POE switch. This saves time and costs.

4 Port POE Switch

When you buy a new system and already know what power supply to buy it will save you a headache later on.

When buying a surveillance system package, the right power supply is usually included and it will be practically plug and play. If you need to get a new power supply for any reason, keep your eye out for how many cameras it could withstand and also the brand of the power supply. Also look for the UL certification to make sure it meets the highest safety standards.

When connecting wires to your power supply, make sure you have a screwdriver and wire-strippers. Also it helps to have a staple gun with rounded staples to secure any visible wire to a wall. It should only take a few minutes to install a power supply. However, if you are not very experienced with any DYI projects call your installer or a handyman to help you install it.

To avoid any problems in the future sometimes it’s a good idea to call a qualified installer. A professional. There are plenty of professional installers that will do all the dirty work for you. If you have the extra money it’s a good idea to get it done professional as they run wires correctly and make it look neat.

TIP: half an amp is 500 milliamps.

What does 12vDC and 24vAC mean? what’s the difference? Lets start with 12vDC. What does DC mean? DC stands for direct current, meaning its electrical current running through a wire is unidirectional (it only goes one way). The electrons keep cycling through one path going one way. This was made famous by Thomas Edison. He tried using it in houses and almost powered towns with it.

AC on the other hand stands for alternating current. It means electrons travel in two directions and alternate back and force. This is now used in household electricity and was made famous by Nikola tesla (The Tesla automobile was named after him). AC is what we use today. We use 60 htz, which means it alternates 60 times a second. The electricity switches direction 60 times per second. In the United states all wall outlets use AC power.

AC/DC… the band got there band’s name after there younger sister saw the initials AC/DC on a sewing machine.

What is voltage? Voltage is basically electrical pressure that runs through a wire. For example, on a battery with 1.5 volts it is safe to touch because 1.5V is too low of voltage to give you a shock. Although high voltage is dangerous like the 120V that comes out of a wall outlet. To begin to understand voltage you need to know what an electron is. A battery is designed to create the force to move electrons. Conductors (usually copper) provide a path for electrons to flow on, which is called current. A electron is a negatively charged particle that spins around the outside of an atom. Electrons are what moves through wires and make electricity work. When electrons move through a wire its called current. Electrons travel outside the negative side of a battery and are attracted to the positive side. But, never connect a wire directly from the negative side to the positive side, that will cause a short circuit. The conductor will get hot and the battery will quickly lose energy.

For more information on different power supplies, take a look at some of our CCTV power supplies.


Power Distribution Box

Written By:
Friday, April 10th, 2015


Power runs through everything right? Power is needed to watch your TV, to use your phone, and to start a car. So how do you think all of your surveillance equipment works? Well, if you have a Surveillance system in your home or business, or even your vacation home, you would know that in order to be able to view your cameras you need a power distribution box for all your CCTV equipment. Many of you may not know what these distribution boxes are, how they affect your surveillance cameras or how to install this box. Here at Techpro Security Products we will be sure to teach you a bit about these power boxes to enhance your knowledge and how they work to power your security camera system.

These power supply boxes, or power distribution boxes, allow surveillance owners to make it as simple as possible to manage and give power to their multiple cameras around your business or home from one central point. Usually the Power Distribution Box is plugged in at the same location where your DVR is placed. Our power supplies are very easy to install in your homes or for any of your other reasons. Each camera’s power cables all just need to be simply screwed into the power supply for the amp voltage. There are a variety of power supplies for the different amount or variety of cameras you own and must power.

Here at we are able to offer you a variety of power distribution boxes to go along with the amount of cameras you may own to be powered by. We also sell packages, so if you’re new to all this type of technology we offer complete systems that come with a set of cameras, a DVR to record, and the correct power supply needed to run your system. We take all the guess work out of the equation for you. You may also call our sales department who will be able to assist you for your best selection of your choice of cameras or money suiting for your business or home. We are located in South Florida and have expanded now to Colorado as well providing later hours for sales questions as well as tech support. Our power boxes provide a better quality electric flow than other small power adapters. They are metal boxes that help protect the inside from being damaged, and must be protected as well from any weather occurrences unless having the weather proof box to apply power to your systems.

The 4 Channel Power Distribution Box (PWR-4)
We at can offer you what we have as a starter, our 4 channel CCTV power distribution box. It is a 12V DC and 110V box. This is a high-quality and very reliable power supply box. Every channel is protected, not allowing fuses to blow. This power box can be mounted on any type of surface and plugged into an AC outlet to power up your cameras in no time. It can handle up to 4 security cameras. It is DC regulated meaning over current and voltage protected. It’s especially a perfect solution if you have a couple cameras set up outside your home in different locations because it could allow you to run your own low-voltage wire to each one.

4 Channel Power Distribution Box

The 8 Channel Power Distribution Box (PWR-8)
Our 8 Channel power distribution box carries 12 V DC with 110 V input. Use a large Phillip screw driver to open the box. You must punch out the ports for your power cables and attach them to the terminal block. Once your cameras are well connected you may turn on your power 8 supply box for eight cameras. Powering multiple amounts of cameras couldn’t get any easier than this. Connections are very easy and a highly recommended product for all to supply power to 8 cameras with just one circuit.


Weatherproof Power Distribution Box (PWR-9-10AWP)
In stock we have a 9 channel 12V DC Weatherproof power distribution box with 10 amps of output and is water resistant. This DC power supply box was designed for the use of being outdoors. It was meant for it to be resistant towards water and for it to be easier to use local power instead of using long runs to use power back to an indoor power supply. It can power up extra items that you may need for your system, for example illuminators, along side with 8 cameras being powered up. It is a solid built power box that will last a long time.


18 Channel Power Distribution Box – UL Listed (PWR-1810A-UL)
At we carry an 18 Channel 12V DC 10 AMP UL listed power distribution box for CCTV cameras. It supplies a total of 10 amps and can be used for most of your 12V DC accessories. This power box has an LED indicator. Also assuring a surge protection and power on and power off switch.


Distribution boxes as we all know are meant for powering your surveillance systems for your home or business. These boxes will supply power to turn on all of your cameras that are connected to your DVR recorder. Now, depending on what kind of video recorder you own and how many channels it contains to hold cameras will determine what kind of power supply you must obtain to supply enough voltage power to all your cameras in order to be able to record or view footage. Connections are extremely easy when it comes to connecting your cameras to these power boxes.

For more information or to take a look at different power solutions for your CCTV Camera System, check our our CCTV power supplies.


How to Install a CCTV Analog Camera System

Written By:
Friday, May 30th, 2014

At Techpro Security Products we sell surveillance equipment to people from all walks of life, from the experienced installers to the non tech savvy end user. The process of installing your own security camera system is not overly difficult but if you don’t have access to the necessary information it can become quite challenging. This article is going to give you all the guidance that you will need to install your own system. When you purchase any CCTV equipment from us it also comes with lifetime technical support for those items. This means that you can always contact us for any questions about your installation although hopefully this article will help you to handle the standard installation steps.

We offer several different varieties of security camera systems and since it is not possible to cover the specifics of installing each type, this article will cover the steps involved with putting together an analog system. This analog technology has been used for decades now and although it’s the oldest technology, it is still widely used for new security camera installations every day. Even if you are going to use one of the newer types of systems, the installation steps discussed here are very similar to those which are involved in setting up all varieties of security camera systems.

The first step in this process is to purchase all the necessary equipment. Here is a list of the items you’ll need.

A DVR (Digital Video Recorder) – The video signal from the surveillance cameras is transmitted to this device for recording. DVRs come in various sizes which allow you to connect a different number of cameras to them. 4,8,16 and 32 channel DVRs are typical sizes. For this article we’ll talk about installing an 8 Channel Ultimate DVR or the DVR-LT08240. You will need to install a hard drive in this unit for the actual recording or we can put one in it for you.



Security Cameras – This is the device that captures the video and transmits it to the DVR. There are many different types of cameras available today but they all preform the previously mentioned function in addition to any other capabilities that they might have. Also, the analog security cameras that we sell always have the same type of connections for video and power. For this article we’ll talk about installing the OB-LX700IR50-W.



Power Supply – All of your security cameras will connect to this device and it provides power to them. We offer several different types of power supplies that vary in the amount of cameras you can connect to them, as well as the amount of amps and voltages that they supply. For this article we’ll talk about installing an 8 channel power distribution box or the PWR-8. This is a 12 volt power supply that provides 4 amps in total or 500 milliamps for each channel.



Cabling – At Techpro Security Products we offer three types of cables for transmitting the video signal from the camera to the DVR. For this article we are going to talk about using a type of cable which is known as Siamese Cable. It has RG-59 for video transmission and 18/2 for power, all joined together with a tough outer insulation.


Siamese cable

Connectors – For the type of equipment being used in this discussion you will need to use three types of connectors. You will need 2 different types of power leads (PT-3 and PT-4) and twist-on BNC connectors. For each camera you’re installing you will actually need two PT-3s, one PT-4 and two twist-on BNC connecters. The last items that you will need are some b-gel connectors and a pair of wire strippers.


Power lead PT-3


Power lead PT-4.


Twist on BNC connector


B-gel connector

Once you have all the equipment that you need, it’s a good idea to fully plan out your security camera installation. The majority of this should actually be done before you purchase the items but once you have the items you should double check that you have everything you will need and that all of the pieces will fit the way you want. It’s also a good idea to test all the equipment in an easy to access location before mounting anything. To do this you can simply put the DVR and power supply on a table, then set up one wire and connect each camera to it one at a time (the specifics of connecting the camera are described below). It’s a lot more work to address any issues after all the cameras is mounted and the wires have been run.

The first thing to do in your install is to decide where you want the DVR to be located. Being able to directly access the unit does not need to be the first consideration because once everything has been set up correctly you will be able to remotely access it from any computer in the world. Instead you should consider how safe it would be if someone broke into the install location. Recording the best possible video won’t do you any good if the DVR is stolen or damaged. The DVR should be secured in a lock box or put in a hidden location. I personally like the combination of these two security measures. For example, put the DVR in a lock box and then put the lock box in a well-ventilated portion the attic.

Lockbox ex

DVR Lockbox EX

The next step in installing your own CCTV system is to decide where you want to mount the power supply for your cameras. It is best to set it up within 2 to 5 feet of where the DVR will be located. This is a good idea because your camera wires will split as they approach this location, with one part going to the DVR and the other going to the power supply. You’ll also need to make sure that the power cord for the power supply will be able to reach a power outlet from your chosen location.

Now it’s time to run your cables from the location where the DVR and power supply will be to the locations where you will mount your surveillance cameras. You should make sure that you have a secure mounting point at each of these locations which will give you the camera view that you desire. It’s generally a good idea to run these wires in such a way that the vast majority of them won’t be visible once the install is completed. Pulling them through attics or on top of drop ceiling is a good example of this. Running the cables is the most labor intensive portion of an install so you should take your time and do it right the first time so that you won’t have to make corrections later.

Mounting your security cameras will be the next step in this process. You should already have planned out where they’re going to be mounted by this point. Make sure that you mount them securely in such a way that you can easily attach them to the wires which will transmit the power and video. The Siamese cable is made of two wires and these are what you’ll be connecting to your cameras at this end of the wire. You should be able to see where the two wires are joined and you’re going to need to separate the two wires far enough from each other so that you can manipulate them enough to be able to make these connections to the camera.

Siamese Connections – The first step in preparing the Siamese cable to be able connect to your camera is to deal with the smaller wire (or 18/2) in order to provide power to the camera. You’ll need to strip back the outer insulation of the 18/2 wire approximately an inch and a half. Next you’ll need to strip back the insulation on the red and black wires about a half inch, you’ll also need to do this on the two wires of the PT-3 power lead after separating them a couple inches.

Now you’re ready to connect the 18/2 and the PT-3. Start by twisting the red wires together and the black wires together. Then you’ll need to slide each of the twisted pairs in the open end of the B-gel connector and crimp it down. It’s important to do this without cutting through the connection.

Now we’re going to attach the twist-on connector to the RG-59 side of the Siamese cable. You’ll need to start by stripping back the outer insulation about a half inch, then trim back the copper mesh. Next you’ll need to strip away the white insulation until about a 3/16th of inch of the copper core wire is showing. Next you’ll need to firmly screw the BNC connector on to the end of the wire. The key part of doing this right is making sure that the inner copper wire goes into a small hole on the inside of the BNC connector. Keeping this inner wire as straight as possible before twisting the connector on to the wire is a good way to achieve this goal.


Siamese connections

Once you have the connectors attached to this end of the Siamese it should be simple to connect them to the camera. Once that end is set up correctly, you will have to go to the DVR end of the cable and attach the connectors in exactly the same way. The only difference at this end of the cables is that you may need to separate the Siamese wires from each other a longer distance so that you can easily reach the DVR with the RG-59 and the power supply with the 18/2.

Next you should connect the RG-59 to the DVR’s video inputs and make sure that they are firmly attached. The inputs on the DVR are numbered so you can display your cameras in the order that you desire. This is a good time to turn the DVR on and make sure that you have a monitor connected to it. Once we get the power connected to the camera wire you will be able to see the live video feeds.

Connecting your camera wires to your power supply is the next step in this install and while you’re doing this you should make sure that the power supply is unplugged. The 8 channel power supply is able to provide power to 8 cameras simultaneously when it’s configured correctly. There is a pair of screw terminals for each of the cameras that you can connect and each of these terminals is clearly marked for polarity. This is where you will attach the PT-4. It is very important to make sure that you connect the PT-4’s red wire to the positive terminal and the PT-4’s black wire to the negative terminal because if you have it wired the wrong way it will probably cause damage to the camera. Once you have them connected to the power supply then you should connect one of the PT-4s to one of the PT-3s from your camera wires. You should do just one at first to make sure that you have everything set up correctly. Now you’re ready to turn on the power supply.


Power supply/ PT-4 connections

At this point you should be able to see the live video feed at the DVR’s monitor. If you do not see it, then immediately turn off the power supply and check to make sure that you have everything wired correctly. If the wiring doesn’t seem to be the problem then redo the connections on the wire for that camera. You must make sure that all the connections are done correctly. This is an issue that even veteran CCTV installers still face on occasion. Once you have that camera working then turn off the power supply and connect the power to the next camera. Repeat these steps until you can see the live video feeds from all of your cameras.

At this point you should be able to see the live video feeds from all of your cameras. The last thing to do is to log into the DVR and make sure that the settings there are configured so that you’re cameras will record the way you want. Your security camera system installation is now complete although you should still do some fine tuning.