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GE DS215TCCBG1BZZ01A Common Extended Analog I/O Board
The GE DS215TCCBG1BZZ01A is a critical, highly-integrated electronic module known as the Common Extended Analog I/O Board.
It is an essential component of the GE Speedtronic Mark V Turbine Control System, particularly within the TC2000 core (Control Micro Application Card B). Its function is to manage and process a wide range of extended analog signals necessary for precise turbine control and monitoring.
⚙️ Key Specifications and Function
| Feature | Specification/Description |
| Product Type | Turbine Control Communication Board (TCCB) / Extended Analog I/O Board |
| Series/Family | GE Speedtronic Mark V LM Gas and Steam Turbine Control Systems |
| Core Function | Analog Signal Processing and I/O. It conditions, filters, and processes complex analog signals before transmitting them to the main control processors. |
| Specific I/O | Handles various inputs vital for turbine operation, including: * RTDs (Resistance Temperature Detectors) for temperature measurement. * Milliamp Inputs (4-20 mA / 0-1 mA) from field sensors. |
| System Role | Serves as an indication, communication, and alarming device. It provides the core processor with the actual measured values and handles signal filtering to ensure accuracy. |
| Communication | Facilitates communication via a 3PL connector (data bus) between other core application boards (STCA, TCCA) and transmits data to the system’s COREBUS. |
| Firmware Role | The suffix BZZ01A indicates the board comes pre-loaded with a specific firmware/software package, which dictates its exact filtering, processing, and communication logic. |
| Location | Typically installed in the TC2000 core at location 3 (Turbine Control Micro Application Card B). |
In summary, the DS215TCCBG1BZZ01A is indispensable for gathering and conditioning high-integrity analog sensor data from the turbine and field devices, ensuring the control system receives clean, accurate information for all critical control loops.
🛠️ Support and Availability
Like most DS215 series boards, the DS215TCCBG1BZZ01A is a legacy component that has been discontinued by the original manufacturer.
Support for this critical part is now primarily provided by the specialized industrial repair and surplus market. You can usually find services offering:
- Repair Services: Sending your faulty board for diagnosis, repair, and testing.
- Exchange Programs: Trading your faulty board for a refurbished, tested, and warranted unit.
- Surplus Sales: Purchasing a new or unused replacement board from specialist vendors.
