Siemens 6GK1502-2CB10 Optical Link Module Profibus

Siemens 6GK1502-2CB10 Optical Link Module (OLM/G11) is a V3.1 PROFIBUS interface that bridges a copper PROFIBUS DP segment to a fiber-optic link, enabling longer, interference-resistant connections in SIMATIC NET installations. It provides one RS-485 port for PROFIBUS DP communications and a glass-fiber link interface (G11) with two BFOC sockets, along with a signaling contact and a test/monitor port for diagnostics. The module operates at up to 12 Mbit/s for PROFIBUS DP and 45.45 kbit/s for PROFIBUS PA, supporting both DP data transmission and PA fieldbus segments in the same optical topology. Typically deployed to extend PROFIBUS networks between distant nodes, or to connect network segments across challenging environments, the OLM/G11 integrates with Siemens automation stacks and supports common PROFIBUS ring and linear topologies where fiber is required between nodes.