The Siemens 6GK1503-2CB00 OLM/G11 V4.0 converts PROFIBUS RS485 signals to glass fiber optics. Features 12 Mbit/s speed support, BFOC sockets, and a 24V DC input for reliable industrial networking.
The Siemens 6GK1503-2CB00 (OLM/G11 V4.0) serves as a high-performance bridge between electrical and optical PROFIBUS networks. This Optical Link Module (OLM) converts electrical RS485 signals into optical signals, allowing data to travel over glass fiber optic cables. By utilizing this module, system designers eliminate electromagnetic interference (EMI) issues and extend communication distances far beyond the capabilities of standard copper wiring.
This module features a hybrid connection architecture that optimizes network flexibility. It provides one RS485 electrical port via a 9-pin Sub-D socket and one optical port equipped with two BFOC (ST) sockets. This configuration supports various PROFIBUS protocols and speeds, including:
The 6GK1503-2CB00 thrives in unstable industrial power environments. It operates on a nominal 24V DC supply but maintains full functionality across a wide voltage swing from 18.8V to 28.8V DC. To ensure continuous uptime, Siemens engineers included:
Because the module weighs only 0.34 kg and utilizes a compact housing, it integrates perfectly into dense control cabinets. It primarily serves as a cornerstone for building linear, star, or redundant ring topologies in modern automation facilities. Whether you are connecting remote I/O stations or linking separate production buildings, the 6GK1503-2CB00 guarantees high data integrity and lightning protection by isolating different parts of the network through fiber optics.
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