When building the surveillance system is necessary to choose a CCTV power supply. This can be a bit 'more complex than a simple plug the adapter into the wall. Let some of the characteristics and differences between the CCTV power supplies address.
Vs. single port. Multiple-port
The name says it all. Do you want to use a single port adapter to any surveillance camera or go to a single power box to power, able to provide all the cameras? If the monitorSystem needs only a couple of surveillance cameras, then it may be a good idea, only with a single power supply to each camera. In fact, even four camera adapter all running into a power strip can be a big problem.
Clean and reinstall might be an interesting option, however, and there may be an ideal situation, a box with a single power supply affect the entire system, especially if you have a large number of cameras. The choice of this really depends on the userand their power needs and aesthetic preferences.
DC vs AC Power Supplies
Security camera power supply for most of the time, 24VAC. Over the past 10 years, the introduction of cameras smaller, more compact and hidden has led to a greater number of options 12VDC. Both are lightly regulated (low voltage) for the construction, which allows flexibility for monitoring installations.
12VDC
12VDC uses a small footprint of surveillance cameras, becausedoes not need a rectifier. Although this type of diet was originally designed for covert surveillance applications, it has become very popular for larger C / CS mount type surveillance cameras. On the debit is 12VDC is not a good solution for long cable runs, and in fact 12VDC boxes may cost more than their colleagues 24VAC.
24VAC
These power supplies are often simply distributed by transformers or multiple ports into a single application. The advantage forThese power units cost more than the port because they have found a lower amount of the required components. Another advantage is its ability to provide a strong signal of CCTV performance over long cable runs.
Surveillance systems mixed
Through the use of monitoring systems, many converters used a series combination of both 12VDC and 24VDC power supplies. These converters provide regulated 24VDC voltage to 12V. If a drive must be used in a system thatwant to make sure to allow for the overhead on the current valuation. For example, if you use a 12VDC power supply 400mA of power, then you're going to want to use an AC-DC 800mA converter. Sun arise, you can avoid the conversion.
If the fuse
Most multi-camera surveillance systems with a multi-port power is with a molten glass or PTC (CB), overload protection.
Are preferred for most applications, backups, but in many situations, allows the use of PTCrestored to an automatic reset of the fuse when the power is removed and then. The disadvantage of this system is that the PTC system can take too long to respond and can not get the right power protection that you would get from a properly rated fuse. In fact, there are occasions when a PTC will fail completely, so in death by a door.
Backups are generally recommended, but if a PTC system is designed so it's a good idea to have extra ports on hand.
