IBM 73Y9549 zEnterprise 114/196 Power Supply

The IBM 73Y9549 is a DCA-CY (Distributed Converter Assembly), a DC power module for the IBM zEnterprise BC12 (zBC12) mainframe. It converts and regulates the system’s DC supply into the voltage levels required by the mainframe’s internal subsystems, and assemblies of this type are fitted in redundant configurations so power is maintained if one unit fails. The DCA-CY designation identifies this specific converter variant within the zEnterprise power hierarchy; it is distinct from the DCA-Z7 assemblies (for example 41U8317 and 45D2816) used in the earlier zEnterprise 196 and zEnterprise 114 generation. The zBC12 is IBM’s entry-level member of the zEC12 mainframe family and remains in service across many data centres, so replacement converter assemblies such as the 73Y9549 are valued for maintaining power redundancy and operational continuity on existing installations. Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.