Siemens Profibus OLM/G12 Optical link module, V4.0 Part number 6GK1503-3CB00

This optical link module forms part of a Profibus network, linking segments using glass fibre-optic cable to extend communication over longer distances. It converts electrical Profibus signals to optical signals and back, allowing data transmission between devices separated by distance or subject to electrical interference. Typical use is within industrial control panels and automation networks where fibre-optic connections are required for reliable signal routing between remote sections of a plant.