The Reliance Electric 0-57404-1J Network Communication Module is a legacy network interface card for the AutoMax PLC family that enables data exchange between the controller and other networked devices. Part of the AutoMax PLC lineup, the module carries part number 0-57404- and is documented for use with the J2-3001 manual; notable on the faceplate is a red FAULT CODE button. Because this item was discontinued by the original equipment manufacturer, listings describe it as surplus or used, with the 0-57404-1J variant (also referenced as 57404-1) appearing in distributor catalogs.
