Surveillance Equipment

4-Port BNC Extender Over Fiber

Convert and transmit up to four analog CCTV video signals over long distances using a single fiber optic cable for superior signal integrity and security.

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Key Features

4-Channel Video over Fiber

Transmits video from four separate analog CCTV cameras (via BNC inputs) over a single optical fiber strand. This dramatically reduces cabling complexity and cost compared to running multiple coaxial cables over long distances.

Long-Distance, Secure Transmission

Leverages fiber optic technology to extend video signals up to 20 kilometers (as noted on the label), far beyond the limits of coaxial cable, with complete immunity to electromagnetic interference (EMI) and ground loops.

Bi-Directional Data Channel

Includes dedicated RXD (Receive) and TXD (Transmit) data ports, allowing for the transmission of control signals (like PTZ camera controls) bi-directionally over the same fiber link alongside the video.

Compact Transceiver Pair

The system consists of a matched Transmitter (T) and Receiver (R) unit. The compact design allows for easy installation at the camera end (TX) and the monitoring/DVR end (RX).

Technical Specifications

Specification	Details
Dimensions HxWxD (Packaged)	5.8 x 28.3 x 20.4 cm
Weight (Packaged)	680g
Compatibility	Standard analog CCTV cameras with BNC output; compatible with DVRs and monitors with BNC input.
Power Supply	Requires external DC 5V power for both the Transmitter and Receiver units (Input: 100-240V AC via included adapter).
Interface/Ports (Per Unit)	Video: 4x BNC Inputs (on Transmitter), 4x BNC Outputs (on Receiver) Fiber: LC/SC or similar optical port (labeled OPT) Data: RXD, TXD (for RS-232/485 control signals) Power: DC 5V Input Indicators: PWR (Power), SYN (Sync)
Cables	Not included. Requires single-mode or multi-mode fiber optic cable and standard CCTV coaxial cables.
Additional Specifications	Model: ZX-4V1D (indicates 4 Video, 1 Data channel) Transmission Distance: Up to 25km (per product label) Signal Type: Analog composite video (CVBS)

Applications

Long-Range Perimeter Security – Ideal for securing large facilities like airports, industrial plants, or campuses where cameras are located far from the security office. Fiber ensures clear, stable video over kilometers.
Transportation and Traffic Monitoring – Used to transmit video from multiple roadside traffic cameras or tunnel surveillance cameras back to a central traffic management center over existing or new fiber infrastructure.
Citywide or Municipal Surveillance – Enables the integration of analog cameras from various remote locations (parks, streets, buildings) into a centralized monitoring system using the city's fiber network, future-proofing the investment.

Package Contents

1x Fiber Optic Transmitter (TX) Unit
1x Fiber Optic Receiver (RX) Unit
2x DC 5V Power Adapter(s) (Input: 100-240V AC)

Safety & Compliance

Important Safety Instructions:

Use only the provided 5V DC power adapters.
Do not look directly into the optical port when the unit is powered.
Handle fiber optic connectors carefully to avoid damage.
Ensure proper grounding if required by local electrical codes.

Certifications:

CE (European Conformity)
FCC (Federal Communications Commission)

Warranty & Support

Warranty Information

Please contact us for warranty information specific to this product.

Customer Support

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