Schneider Electric 140CRP31200 Remote I/O Head is the local-rack head module for a Quantum Ethernet Remote I/O (EIO) main ring, coordinating I/O traffic between the local controller and distributed I/O across the network. As the head on the local rack, it interfaces with remote I/O drops via adapter modules to extend I/O to field devices. The part is catalogued as 140CRP31200 (140-CRP-312-00) within the Modicon Quantum family and is used in Quantum EIO Ethernet I/O configurations.
