A video balun is a connecting device which converts a balanced electrical line to an unbalanced line and vice versa. It is also used as a cost efficient alternative to extending the distance of a security camera from 1,000 feet to up to 6,000 feet. This is achieved by using a Cat5e/A cable or another form of twisted pair wire (UTP) instead of the usual coaxial cable. With the help of a video balun, the UTP wire can be pulled for longer runs. A video balun comes in two’s. One is for converting the unbalanced line to a balanced line and the other is to convert the signal back. One key advantage of using a video balun is that the frequency transmits a stronger signal and thus has less of a signal interference. Basically, there are two kinds of video baluns—a passive video balun and an active video balun. However, the right kind of video balun to use mostly depends on the function. For example, a keystone video balun is more appropriate for behind the wall installations, while for your home theater, you will need a special HDTV balun. For industrial needs, a rackmount video balun will better support the requirements of a business. It helps eliminate tangled cables and simplifies the process of installation. Other common uses of video baluns include connecting security and surveillance systems, closed circuit television (CCTV) systems, televisions, computer monitors and laptops, USB devices and DVD players, among others.
There are three configurations by which video baluns can exist. If you use passive video baluns on both the camera and the monitor side, then there is no signal intensity change or amplification. This works for a maximum distance of 1,000 feet. If you use a passive video balun on the camera side and an active video balun on the monitor side, the receiving balun amplifies a weakened signal and transmits a stronger signal to the surveillance device. This set-up works for a maximum of 4,000 feet in distance. Finally, if you use an active video balun on both sides, the sending balun transmits a strengthened signal to the other end which then strengthens the signal and sends it to the surveillance device. This is good for a maximum of 6,000 feet in distance.
Want to know more about video baluns? Visit PIMFG.com.
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