CCTV Video Baluns
Frequently Asked Questions About CCTV Video Baluns - FAQ’s
How do I install a CCTV video balun?
Installing a CCTV video balun is very simple. Most video baluns have easy to use push pins or terminal blocks that will allow you to insert the UTP cable pairs directly into. These slots will create a strong connection between the cable pairs and the balun. Once this connection is made you can then simply attach the BNC connector on the balun to both your security camera and DVR.
When should I use a CCTV video balun?
We always recommend using an RG59 Siamese CCTV cable for your security camera installations. This cable is really the best cable used to deliver both your power and video between your security cameras, DVR, and camera power supply. But there are some applications where there is a UTP cable already in place, or you have decided to use Cat5e or Cat 6 cable to support real long video runs. In these applications we do recommend using a video balun. A video balun is your only option for converting a UTP cable to a BNC connection.
What distances can I transmit video using video baluns?
It all depends on the video baluns you use. There are active video baluns that are powered that can transmit video up to 4 or 5000 feet. Plus there are passive video baluns that do not need power that can transmit color video up to 2000 feet. So you need to evaluate the distances you need to transmit your video and then choose the video baluns that best support your cable distances.
Do I need to power both the receiver and transmitter of an active balun?
Yes. Most quality active video baluns will already include the power supplies needed to power both the transmitter and the receiver. So, when designing your CCTV system plan on having local power available on both ends of your UTP cable runs.
Can I use Cat 6 cable with a video balun?
Yes. You can choose to use Cat 6 UTP cable with your video baluns. Cat 6 cable is a thicker gauge cable s you are getting a bigger pipe to transmit your video over. Most quality video baluns will offer the connection mechanisms that support the thicker cable pairs that are common with a Cat 6 cable.
How many UTP cable pairs do I use with a CCTV video balun?
Most video baluns allow you to use just two pairs of a UTP cable to transmit video. So you will have two available pairs that can be used for power. But it is important to understand that you could have some voltage drop and distance limitations when sending power over Cat5e or Cat 6 cable pairs. So if you have long cable runs you may have to run a separate 18-2 power cable from your power supply to your cameras, or plan on powering your cameras locally closer to the camera location.
Is it cheaper to use Cat5e or Cat 6 cable for my CCTV system?
It all depends. When using video baluns with a UTP cable solution for your security camera installations you need to account for your cable, and a pair of baluns for each camera. You also have to account for another power cable if you are not able to use your extra UTP cable pairs to deliver the right amount of voltage your cameras require. So you need to evaluate your complete system and its needs before you can evaluate the cost.