Further information for Siemens 6GK1503-3CC00 - PROFIBUS OLM / G12 1300 modules 1 2 RS485 glass fiber
PROFIBUS OLM/G12-1300 V4.0 Optical Link Module with 1 RS-485 and 2 glass fiber optic interfaces (4 BFOC sockets), 1300Nm wavelength for long distances with signaling contact and measuring output. SIMATIC NETPROFIBUS OLM/G12-1300 V4.0