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The GE DS215MSTQG5AZZ01A Circuit Board with Firmware is a critical, highly-integrated electronic module used in General Electric’s high-reliability industrial control systems, specifically the Speedtronic Mark V Turbine Control System.
This board is part of the DS215 series, which denotes a complex, firmware-loaded assembly designed for a specialized, high-integrity control function within the system’s modular architecture.
⚙️ Key Specifications and Function
| Feature | Specification/Description |
| Product Type | Circuit Board with Firmware (DS215 Assembly) |
| Series/Family | GE Speedtronic Mark V Gas and Steam Turbine Control Systems |
| Functional Acronym (MSTQ) | This designation points to a board that handles crucial Master Timing, Synchronization, and Quadruple (or TMR) logic. Its primary functions are: * Inter-processor Communication: Managing the high-speed, synchronized data exchange between the Mark V’s three redundant control processors (R, S, and T). * TMR Synchronization: Processing the timing and control signals necessary for the Triple Modular Redundancy (TMR) voting logic. * System Status: Monitoring and reporting critical system health and synchronization status to ensure fault-tolerant operation. |
| Architecture | It is a complex printed circuit board designed to plug into the VME rack as a core module. It often acts as a bridge or interface between the main processing and I/O sections, ensuring data integrity across the redundant systems. |
| Firmware Role | The suffix AZZ01A is crucial, confirming that the board is pre-loaded with a specific, application-defining firmware/software package. This specialized software dictates the board’s exact operational logic for synchronization and communication. |
| Revision Level | The G5 specifies the Group 5 hardware revision, indicating a later revision for this functional board type. |
| Status | This module is part of a legacy series (Mark V) and is generally considered discontinued by the original manufacturer. Support is primarily provided through industrial surplus, repair, and exchange markets. |
In summary, the DS215MSTQG5AZZ01A is indispensable for the high-availability and fault-tolerant operation of the Mark V system, as it executes the complex logic required to maintain accurate timing and synchronization among the redundant control processors.
