ABB GJR2393200R1210 88TK05D-E Bus Coupling ModuleGeneral Information Medium Description: Station Bus Coupling Module Master Station, recent firmware version (Note: Redundant modules must operate with the same firmware version) Product Type: Communication Module Ordering HS Code: 854231 Electronic integrated circuits. Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits