ABB 57520001-A Board

ABB 57520001-A, also cataloged as 57520001-A/2 and 57520001A2, is the DSTC-120 Connection Unit PCB designed to provide the asynchronous communication interface for ABB DSTC-120 networks within ABB Advant Master systems (including MasterPiece 200 and 200/1 configurations). This board is supplied as a connection unit intended for serial communications between DSTC-120 modules, and it is commonly used as a component within ABB control system accessory kits. The package references mounting screws kit 3BSE021202R1 for installation. The part is listed as RoHS exempt under EU directive 2011/65/EU (Article 2(4)(c),(e),(f),(j)) in ABB documentation, and it is documented by several sources as a discontinued ABB offering. In practice, engineers typically source the 57520001-A family for legacy ABB Advant Master installations where an DSTC-120 connection interface board is required to maintain the asynchronous link between system modules.