VEDIO BALUN 8 MB BNC DC TO RJ 45 NET WORK TRANSECIVER LAN TYPE

A Video Balun 8MP PV Passive BNC DC to RJ45 Network Transceiver is a device used primarily in CCTV (Closed-Circuit Television) security camera systems to transmit high-resolution analog video (up to 8MP/4K) and sometimes power over a standard twisted-pair UTP (Unshielded Twisted Pair) cable, like Cat5e or Cat6, instead of traditional coaxial cable.

 Key Components and Function

• Video Balun: A Balun (an abbreviation for Balanced-unbalanced) is a transformer or circuit that converts a balanced signal (like the one used in UTP/Ethernet cable) to an unbalanced signal (like the one used in coaxial cable) and vice-versa. Its main job here is to allow the video signal to be reliably transmitted over the twisted pair cable. *

• 8MP (8 Megapixel): This indicates the maximum resolution the balun can support, allowing it to work with modern high-definition analog security formats like HD-CVI, HD-TVI, and AHD (as well as older CVBS/analog video).

• PV (Power and Video): This specification means the balun is designed to transmit both the video signal and DC power for the camera over a single UTP cable.

• Passive: This means the balun does not require external power to operate itself, drawing power only for the camera it supplies. For very long distances, active baluns (which require power) might be needed, but passive ones are simpler for shorter-to-medium runs.

• BNC DC: This refers to the connectors on the camera/DVR side:

  • BNC (Bayonet Neill–Concelman): The standard connector for the video signal on coaxial-based CCTV equipment.

  • DC: The connector for the direct current power supply.

• RJ45 Network Transceiver LAN Type: This refers to the connector on the other side, which uses the RJ45 plug (the common “Ethernet” connector). This plug connects to the UTP (Cat5/Cat6) cable run. The term transceiver simply highlights its function of transmitting/receiving signals.

🛠️ Purpose and Benefits

The main purpose of this device is to simplify and reduce the cost of installing CCTV systems by utilizing readily available, less expensive, and easier-to-run UTP network cable (Cat5/Cat6) instead of bulky coaxial cables for each camera.

• Cost Savings: UTP cable is often cheaper than quality coaxial cable, especially over long distances.

• Simplified Wiring: Instead of running separate cables for video and power, or using heavy Siamese cables, a single Cat5/Cat6 cable can carry both (or even multiple video signals with a multi-channel balun).

• Longer Transmission Distance: They can generally transmit video signals much farther than coaxial cable, especially the active type, though the distance for a passive 8MP balun is typically limited (e.g., around 650-820ft/200-250m for 1080P/8MP depending on the technology).