Thor Broadcast 16-Channel CVBS Video & RS485 over Fiber Multiplexer | BNC Analog CCTV | Uncompressed Single-Fiber Link

Analog CCTV Video and Control

Large analog surveillance systems generate two problems at once: many camera feeds and the control data that steers them. This Thor multiplexer carries 16 channels of baseband CVBS video together with RS485 data over one fiber optic cable. A single optical run replaces bundles of coaxial and control cable between a camera field and a monitoring center, and removes the interference and ground loop issues that come with copper at that scale.

Uncompressed Encoding and Video Quality

Video is digitized with uncompressed encoding and restored to analog at the receiver, so no compression artifacts appear in recorded footage. The system works with NTSC, PAL and SECAM, with frequency response above 10 MHz at -3 dB and flat within 0.2 dB to 5 MHz. Phase differential is 0.5, differential gain 0.5 percent, Y/C delay under 10 ns and system gain unity within 3 percent. Installation needs no electronic or optical adjustment.

Connectors, Fiber Type and Reach

Camera inputs and monitor outputs are BNC at 75 ohm impedance, matching standard analog CCTV cabling at both ends. The optical interface is model specific and may be ST/PC, SC/PC or FC/PC, running on single-mode or multimode fiber. Distance is likewise model specific, with 20, 40, 60 and 80 km builds available, and the RS485 channel runs alongside the video so pan, tilt and zoom commands reach the cameras over the same strand.

Power, Climate and Mounting

The units are powered from 12 V DC and draw under 10 W, which keeps the demand on a remote cabinet supply low and allows simple UPS backup at the camera field. Operating temperature runs from 0 to +70 degrees C and humidity from 0 to 95 percent, so roadside cabinets and plant rooms are within range. Plan the camera-end enclosure around the connector type chosen, since optical connectors differ between versions.

Applications and Quotation Notes

City surveillance, highways and tunnels, campuses and industrial plants with many analog cameras spread over long distances are the natural applications, with the RS485 path letting operators drive PTZ cameras from the control room. Thor lists this as the 16-Channel CVBS Video and RS485 Fiber system without separate ordering codes, so configurations are quoted per project. Confirm fiber reach, connector type and channel count with StreamPort Media when requesting pricing.