Siemens 6GK1503-3CD01 Automation Connection Component. The recorded exact-product description states: PROFIBUS OLM/G12-EEC EX V4.0 optical link module with 1 RS-485 and 2 glass fiber-optic cable interfaces (4 BFOC sockets) for extended temperature range -20...+60 °C..
PROFIBUS OLM/G12-EEC EX V4.0 optical link module with 1 RS-485 and 2 glass fiber-optic cable interfaces (4 BFOC sockets) for extended temperature range -20...+60 °C.