Video balun Dahua Technology DH-PFM800B-4K

The Dahua Technology DH-PFM800B-4K video balun is a compact passive transceiver for wired video transmission in surveillance installations. Designed to carry high-resolution video signals over balanced cabling, this unit weighs 34 g and features a discreet black housing that integrates easily into camera systems and distribution points. Its universal connector arrangement supports typical coax-to-balanced line applications, enabling longer cable runs while preserving signal quality for IP and analog camera setups compatible with Dahua equipment.

Advantages

The DH-PFM800B-4K provides a space-saving solution for extending video links without active power sources, reducing complexity at remote camera locations. Its small footprint and lightweight construction simplify installation and mounting in confined spaces. The device is built to minimize signal degradation across long distances and to maintain stable video output suitable for high-definition surveillance needs.

Подходит для

• Подключения видеокамер к централизованным приемным устройствам через витую пару
• Продления видеосигнала на большие расстояния в системах наблюдения
• Инсталляций с ограниченным местом для размещения оборудования
• Систем, где требуется простое пассивное решение без дополнительного питания

Key specifications

• Function: Passive video balun for balanced cable transmission
• Weight: 34 g
• Housing color: Black
• Compatibility: Designed for high-resolution video signals including 4K-capable surveillance sources
• Installation: Compact form factor for discreet mounting near cameras or junction points

How to use

Connect the video output of the camera to the balun’s BNC or equivalent connector and attach the balanced cable pair to the balun’s terminal or RJ-45-style interface as specified by the system. At the receiving end, use a matching balun to convert the balanced signal back to the video input of the recorder or monitor. Ensure connectors are secure and routing minimizes exposure to electrical interference. No external power is required for the passive operation of this balun.

Usage recommendations

For best results, use twisted-pair cable of appropriate category and maintain correct polarity when connecting pairs; verify compatibility with the camera and recorder inputs. When transmitting over long distances, test the video feed for noise and adjust grounding and cable routing to reduce interference.