The AVB1 is an active video balun system for analog CCTV cameras (CVBS) and HD coax security cameras. The system consists of a video balun transmitter and and active video balun receiver. It that enables CVBS, AHD, HD-TVI, and HD-CVI camera video transmission using CAT-5 cable over long distances. This is basically an amplified BNC to CAT5 solution that enables a UTP cable to be used instead of RG59 or RG6 coax cable.
For analog CCTV video (CVBS) max cable distance is up to 7800 feet using high quality CAT-5 cable. The max cable distance is lower for 720p and 1080p HD-over-Coax cameras. Please refer to this
max cable distance chart. We also have this installation diagram for your reference. CCTV Camera Pros includes two 12V DC power supplies with these kits.
Active Balun Features
- System Comes as a Pair
- Active Video Transmitter / Active Video Balun Receiver included
- Transmit analog CCTV video up to 7800 Feet using CAT5 UTP cable
- Cost savings by replacing costly coaxial cable
- Compatible with NTSC, PAL, and SECAM video standards
- Compatible with AHD, HD-TVI, HD-CVI (HD-over-Coax standards)
- Built-in Lightning Protection and Power Line Contact Protection
- (2) 12V DC Power Supplies Included
The AVB1 active video balun system supports analog CCTV (CVBS) and HD BNC camera type video transmission using CAT5 cable. The max cable distance varies by video format and resolution. These are the max distances which assume that the highest quality CAT5 cable and clean installations. Wire quality will directly affect the quality of the image and transmission distance.
Please note that active video baluns are not recommended for use with resolutions higher than 1080p / 2 megapixel at this time.
- Analog CCTV (CVBS Video): 2400 Meters / 7800 Feet
- 1080p AHD: 300 Meters / 1000 Feet
- 1080p HD-TVI: 150 Meters / 500 Feet
- 1080p HD-CVI: 200 Meters / 650 Feet
- 720p AHD: 600 Meters / 2000 Feet
- 720p HD-TVI: 450 Meters / 1500 Feet
- 720p HD-CVI: 500 Meters / 1600 Feet
The above diagram shows how to install an active video balun system to wire a security camera to a surveillance DVR using CAT5 cable. Please note that the image sizes in the diagram are NOT to actual scale. This is how it works.
- One of the twisted cable pairs in a CAT5 connects the active video balun transmitter to the receiver balun. (Blue Line)
- RG59 coax cable with BNC connectors is used to connect the BNC video output on the receiver to the BNC video input on the surveillance DVR. (Orange Line)
- RG59 coax cable with BNC connectors is used to connect the video output of the security camera to the BNC video input on the transmitter balun. These RG59 coax patch cables are good to use for this.
- A 12V DC power supply is used by the transmitter and receiver. These single power supplies are included. (Red Line)
Active Balun Video Demo
The below video demonstrates how to install the AVB1 with CAT-5 to connect a CCTV camera to a surveillance DVR or BNC monitor. Please note that this video was made using a previous generation AVB1 system. The connection method is the same with the latest generation.