The 8MP Passive HD Video & Power Balun Transceiver (Pair for HD-CVI / HD-TVI / AHD / CVBS) is an integrated, dual-function transmission module designed to deliver both high-definition video signals and 12V/24V DC low-voltage operating power simultaneously over a single Cat5e/Cat6 unshielded twisted pair (UTP) cable. Eliminating the need to install separate mains power outlets or run dedicated 2-core power cables at each remote camera location, this kit consolidates video and DC power transmission into standard RJ45 modular jacks or tool-less press terminals. Supporting ultra-high resolutions up to 8MP (4K UHD) across all primary analog HD formats, it integrates advanced impedance transformation, common-mode noise filtering, and built-in transient voltage surge protection for commercial and residential CCTV surveillance installations.

Specifications

• Product Type: Single-Channel Passive Video & Power Balun Set (Transmitter + Receiver Pair)
• Supported Video Formats: HD-TVI, HD-CVI, AHD, and Traditional Analog CVBS
• Supported Camera Resolutions: 720p, 960p, 1080p (2MP), 3MP, 4MP, 5MP, and 8MP (4K UHD)
• Power Transmission Type: Passive DC Power Pass-Through (Transmits external 12V / 24V DC power over UTP conductors)
• Power Input / Output Connectors:
  • Transmitter (Camera Side): Standard 5.5 mm × 2.1 mm DC Male Plug (Pigtail)
  • Receiver (DVR / Power Supply Side): Standard 5.5 mm × 2.1 mm DC Female Jack (Pigtail)
• Video Connectors: Gold-Plated Male BNC Connectors with Flexible Coaxial Pigtails (75 Ω impedance)
• UTP Cable Interface: Standard RJ45 8P8C Modular Jack (or Multi-Pole Press-Fit Terminal Block)
• RJ45 Pin Assignment / Conductor Pairing (Standard Configuration):
  • Pins 1 & 2 (Orange/White + Orange): Video Signal (+ / - Differential Pair)
  • Pins 4 & 5 (Blue + Blue/White): DC Power Positive (+12V / +VCC)
  • Pins 7 & 8 (Brown/White + Brown): DC Power Ground / Return (-V / GND)
  • Pins 3 & 6 (Green/White + Green): Reserved / Power Expansion
• Maximum Power Current Rating: Up to 1.5 A to 2.0 A DC
• Transmission Distances (Video Signal over Pure Solid Copper Cat5e/Cat6):
  • AHD Mode: 720p/1080p up to 300m; 4MP/5MP up to 200m; 8MP (4K) up to 150m – 180m
  • HD-CVI Mode: 720p/1080p up to 400m; 4MP/5MP up to 250m; 8MP (4K) up to 180m – 200m
  • HD-TVI Mode: 720p/1080p up to 250m; 4MP/5MP up to 180m; 8MP (4K) up to 150m – 180m
  • CVBS Analog Mode: Up to 400m – 500m
• Power Delivery Distance (12V DC): Typically 30m to 75m depending on camera current consumption (IR LED on) and cable wire gauge (AWG)
• Common Mode Rejection Ratio (CMRR): ≥ 60 dB
• Bandwidth / Frequency Response: 0 Hz to 75 MHz
• Surge & Transient Protection: Built-in TVS (Transient Voltage Suppressor) solid-state protection (up to 2 kV per IEC61000-4-5)
• Electrostatic Discharge (ESD): Contact discharge ±4 kV, Air discharge ±8 kV (Per IEC61000-4-2)
• Housing Material: High-Impact Flame-Retardant ABS Plastic (UL 94V-0 Rated)
• Operating Ambient Temperature: -20°C to +70°C
• Storage Temperature: -30°C to +80°C
• Dimensions: Approx. 45 mm × 25 mm × 20 mm (Main body, excluding flexible pigtails)
• Net Weight: Approx. 70 g to 85 g (per complete pair)

Features

• Integrated 2-in-1 Video & Power Architecture: Combines 4K HD video transmission and remote 12V/24V camera power over a single standard network patch cable, drastically reducing installation labor and wire clutter.
• Full 8MP (4K) Ultra HD Resolution: High-frequency magnetic core handles multi-megapixel analog HD signals without edge softening, ghosting, or high-frequency color loss.
• Plug-and-Play RJ45 Connectivity: Standard T568B terminated network cables plug directly into both ends without manual wire stripping, twisting, or screw tightening.
• Universal 4-in-1 Format Compatibility: Seamlessly supports Dahua CVI, Hikvision TVI, AHD, and standard CVBS analog security cameras.
• High Common-Mode Noise Rejection (60dB): Rejects electromagnetic interference (EMI) and radio-frequency noise from nearby fluorescent lighting, AC power lines, and elevator motors.
• Built-in Transient Voltage Clamping: Integrated TVS diodes protect sensitive camera sensor chips and DVR input stages against lightning-induced surges and static spikes.

Common Applications

• CCTV Surveillance Upgrades: Installing 4K / 8MP HD-TVI and HD-CVI cameras using pre-existing structured Cat5e/Cat6 networking infrastructure.
• Commercial & Residential Security Systems: Running power and video back to a central DVR rack without fitting 230V mains sockets near external camera mounting points.
• Perimeter & Gate Camera Monitoring: Long-distance camera deployments along fences, gates, and warehouse perimeters where localized mains power is unavailable.
• Retail & Office Building Deployments: Clean, concealed ceiling cabling utilizing standard structured patch panels and pre-terminated patch cords.
• Elevator Shaft Monitoring: Delivering reliable video feeds and power through flexible traveling cables with high immunity to elevator motor noise.

Usage Tips

• Accounting for DC Voltage Drop over Distance: Because 12V DC travels over thin 24 AWG Cat5e/Cat6 copper conductors, voltage drop naturally occurs over distance:
  • For short runs (up to 30m / 100ft), a standard 12V DC (1A–2A) power adapter at the DVR side provides adequate voltage at the camera.
  • For longer runs (30m to 70m), power the system using a 13.5V to 15V adjustable DC power supply at the source or use a 24V AC/DC supply paired with a step-down buck converter at the camera end so that the camera receives at least 11.5V when heavy night-vision infrared (IR) LEDs activate.
• Use 100% Solid Bare Copper UTP Cable: Always use genuine Solid Oxygen-Free Copper (OFC) Cat5e or Cat6 cable. Avoid Copper-Clad Aluminum (CCA) cables, as their higher electrical resistance causes severe DC voltage drop and premature video degradation.
• Standard T568B RJ45 Crimping: Ensure both ends of the network patch cable are terminated identically using the Standard T568B pinout standard to prevent crossing DC power lines with high-frequency video pairs.
• Connector Polarity Verification: The female DC jack connects to your central 12V power supply at the DVR/receiver side; the male DC plug connects directly to the camera power input jack at the transmitter side.
• Night-Vision Power Testing: Always test camera performance with the infrared (IR) cut filter engaged (cover the camera lens in a dark room) to verify that the camera does not reboot or drop video when the high-draw IR LEDs turn on.