The Fiber Optic Link Module OLM can be used for single-mode fiber optics

Yes, the Fiber Optic Link Module (OLM) can be used with single-mode fiber optics, specifically with Siemens PROFIBUS OLM/G11-1300 and OLM/G12-1300 models.Supported OLM Models and Fiber SpecificationsSingle-mode or mono-mode glass fiber optic cables with core/cladding diameters of 9/125 µm or 10/125 µm can be connected to the following PROFIBUS Optical Link Modules (OLM): OLM/G11-1300 and OLM/G12-1300. These modules use BFOC connectors for the optical interfaces, ensuring proper alignment and signal transmission for single-mode fibers .Network TopologiesOLMs support various network topologies, including linear (bus), star, and redundant optical ring configurations. For linear bus structures, two-fiber cables are used to connect individual OLMs. Modules at the beginning and end of a line can have a single optical channel, while intermediate modules typically use two channels. Star couplers can integrate multiple OLMs via two-core fiber-optic cables, with the electrical star segment connecting the modules .Operational ConsiderationsConversion Function: OLMs convert electrical PROFIBUS (RS-485) signals to optical signals and vice versa, enabling integration into existing PROFIBUS networks .Environmental Conditions: Some models, like OLM/G12-EEC, are rated for extended temperature ranges (-25 °C to 60 °C), while standard models operate from 0 °C to 60 °C .Ex Zone Applications: For intrinsically safe applications in hazardous areas, OLMs with optical interfaces can be used, provided the fiber type and transceiver match the safety requirements .SummaryIn conclusion, single-mode fiber optics are fully compatible with Siemens PROFIBUS OLM/G11-1300 and OLM/G12-1300 modules, using BFOC connectors and adhering to the specified fiber diameters. These modules support flexible network topologies and can be deployed in standard or extended environmental conditions, including certain hazardous zones when certified. This makes them suitable for robust and scalable optical PROFIBUS networks .