Siemens 6GK1901-0AA00-0AC0 Industrial Interface Module

Siemens 6GK1901-0AA00-0AC0 Industrial Interface Module is a SINEC H1 transceiver with two interfaces that acts as a bus-coupler in SIMATIC NET, enabling two terminals to communicate over Industrial Ethernet within legacy Siemens S5 networks. The dual-interface variant uses a bus connector with N connectors to mount to a backplane, delivering two independent SINEC H1 interfaces for networked devices on the same bus. Operating conditions are 0°C to 55°C, with storage from -40°C to 70°C and up to 95% relative humidity (non-condensing); when mounted on its mounting plate the housing is IP40 protected. The 0AC0 designation denotes the two-interface transceiver, while the related 6GK1901-0AA00-0AA0 refers to the single-interface version. This module is typically employed to couple two devices on the SIMATIC NET bus, providing two Ethernet-style interfaces for industrial communication in older automation systems.