Connecting the right CCTV cameras requires the proper power supply. The right power supply isn’t the same for all types of cameras. Factors to consider are listed here. They include the voltage and the acceptable current.
Selecting the right power supply is a huge and sometimes frustrating challenge. However, there are a few tips that can help make this easier. Keep reading to learn what those tips are.
1. Distribution Boxes or Power Adapters
All security cameras, regardless of whether it is a traditional, full-size option or the newly released fisheye IP cameras now available, require a power source. Power adapters and power distribution boxes are commonly used when a security camera is being installed.
If the security solution involves four cameras or fewer, most installers will opt for the power adapter. Usually, a splitter is used for the installation, making it less complicated than the other method.
For over four cameras, a power distribution box is necessary. When selecting a power adapter, find one that is able to support the amperage and voltage ratings for the cameras being installed.
2. Selecting a Power Supply for Cameras that Support Both AC24V and DC12V
In this situation, the AC24V is likely the best option. This is because it offers the same transmission distance, higher voltage, and lower consumption. Higher voltage helps cameras receive sufficient power to operate properly.
Also, by selecting the AC24V helps with debugging the cameras. This is because it is possible to sync the power supply for syncing the vertical frequency of the image across multiple devices.
3. Providing Sufficient Power to Modern Security Cameras
This is a question that’s hard to answer for some inexperienced installers. Some find that the power capacity is insufficient with the original installation, meaning they have to increase the additional power supply. The security camera requires a large current when booting up initially.
Also, the transmission consumption is higher, which means calculating the total required power supply is more challenging than some believe. It’s not possible to add the rated power of all the cameras together. Doing this will not provide the exact amount of power needed.
The proper method of adding up power needs is to add the rated power. Once this figure is determined, multiply it by 1.3. The answer is the required power supply for all the security cameras in place. It is also necessary to consider the power budget and cable power consumption in this equation.
An example of how to figure out power requirements is seen here. If 100 units of security cameras are installed in a commercial building, the rated consumption of power is 4W for each security camera. Calculating the power supply is simple.
To determine security camera power consumption, multiply 4W by 100 units by 1.3 to get the answer of 520W. After consumption, the required power rating is determined by multiplying 520W by 1.3 to arrive at 676W. The last consideration is the power budget and cable consumption, which is determined by multiplying 676W by 1.3 to get 878W.
4. What to Avoid When Setting Up Security Camera Power Supplies
It’s important for installers to avoid the use of a centralized or single power supply source. There are several reasons this is a bad idea.
When turning the cameras on/off for repairs, it’s not always necessary to eliminate power to all cameras. This is because when all the cameras attempt to boot, the boot current is considerable. This will have a significant impact on the power supply and could lead to damage.
If all the cameras use a single power supply, if the supply experiences an issue, the entire system is switched off. This is especially problematic for entry points that are no longer being monitored.
This leaves installers trying to figure out the proper method. Take the example mentioned above. If a building requires 100 individual security cameras that require an 800W power supply, the setup is using four power supplies. Each power supply provides 200W of power, meaning even if one power supply stops working, the other security cameras are still operating.
5. Additional Problems to Know Of
When connecting a security camera to a power supply, make sure the distance between the two isn’t too long. If it is longer, make sure the same power supply isn’t used for near distance connected cameras and long distance connected cameras.
If this rule isn’t followed, and the cameras are connected to the same power supply, when the voltage gets too high, it can damage the near distance security cameras that are connected to the power supply. If the voltage gets too low, the long distance connected cameras will not work.
All near distanced connected cameras need to connect to a single power supply. The long-distance security cameras need to be connected to a separate power supply.
Another problem with long distances is that a higher voltage power supply is required. If this is the case, it may be necessary to install a 220V AC power source.
6. The Coaxial Cable
While determining the proper power supply is essential, this isn’t the only factor to consider when installing a security camera system. It’s also necessary to choose the proper coaxial cable.
There are several options to choose from, including RG59, RG6, and RG11. It’s important to choose the right option for the camera installation. The higher the cable gauge, the better the transmission for long distances, so knowing this is crucial.
Finding the Right Power Supply for Security Cameras
If a business is planning to install a new security system for their building, noting the information here is essential. If the proper power supply is not used for the cameras, they will not operate properly or provide the security needed for the facility.
In most situations, business owners or managers need to hire professionals to help with this. They can ensure that the proper power supply is used for any camera system installed. Professionals can quickly troubleshoot any issues that arise during the installation process.
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