Siemens SIMATIC NET PROFIBUS OLM/G12 V4.0 Optical Link Module 6GK1503-3CB00
The Siemens 6GK1503-3CB00 is a PROFIBUS OLM/G12 V4.0 optical link module with one RS-485 interface and two multimode glass fiber-optic interfaces. It features four BFOC connectors, supports transmission rates up to 12 Mbit/s, and provides ring redundancy.