MuxLab - 500734 SM80 Extendeur 6G-SDI sur fibre avec canal retour SM 80 km

The cameraman needs to see what the control room is editing, and the director needs to be able to give instructions. Eighty kilometres away, this simple exchange becomes an engineering challenge, and this MuxLab 500734 SM80 extender doesn't just transmit an image. It recreates proximity. It injects your 4K stream into a single-mode fibre and, on the same strand, opens up an express path for everything that needs to come back: the programme stream for the viewfinder, talkback audio, tally signals and CCU commands. It's a digital umbilical cable that makes the distance transparent.

Take it out of the box and its intelligence is obvious. Plug in your source, it identifies the SDI format and configures the ports itself. The 1+4 inputs and outputs are malleable: you decide which channel goes out, which channel comes back in. This flexibility matches your workflow, not the other way round. The RS232 pass-through is crucial here; it allows you to control the camera's zoom, focus and iris from the remote control room as if you were touching the lens. At this scale, it's the difference between a simple retransmission and a real production.

The 80km feat is based on standard SFP+ modules that you choose for your specific link. This modular approach is a breath of fresh air: the basic electronics are future-proof, and only the small optical components evolve with the technology.