Siemens 6GK1502-4AA10 Profibus DP Interface Module

Siemens 6GK1502-4AA10 is a four-channel optical link module (OLM) for PROFIBUS DP in the SIMATIC NET family, designed to bridge PROFIBUS DP segments over plastic fiber optic cable. Marketed as Optical Link Module for PROFIBUS (OLM/P4, A2), it provides four BFOC fiber interfaces and includes a signaling contact and a measurement output to indicate link activity. The device is built to support high cascading depth, allowing multiple OLMs to be daisy-chained within a single PROFIBUS network while maintaining electrical separation between sections. By connecting PROFIBUS DP lines via fiber, the module enables optical transmission across PROFIBUS segments within industrial automation architectures, while remaining compatible with the broader SIMATIC NET ecosystem and PROFIBUS DP devices. The 6GK1502-4AA10 is part of Siemens' SIMATIC NET portfolio and is suitable for deployment in networks where optical transmission is desired to extend reach.