الوصف
The GE DS200UPLAG1 is a critical component known as the LAN Power Supply Board or LAN Power Supply Circuit Board.
This board is part of the DS200 product series, which is primarily associated with the General Electric Mark V Speedtronic Turbine Control System and the $\text{EX2000}$ Excitation Control System.
⚡ Function and Purpose
The primary role of the $\text{DS200UPLAG1}$ board, indicated by its functional acronym UPLA ($\text{U}$nnamed $\text{P}$ower $\text{L}$ogic $\text{A}$ssembly, or $\text{U}$tility $\text{P}$ower $\text{L}$AN $\text{A}$ssembly) is to ensure the stable and reliable operation of the communication network within the control system cabinet.
Key Functions:
- LAN Power Regulation: Its central function is to provide the necessary, regulated power to the Local Area Network ($\text{LAN}$) components, which are essential for data communication between the various processor and I/O cards in the Mark V system.
- Operator Interface Power: Specifically, in some configurations, it is responsible for supplying power to the $\text{OC2000}$ operator interface module, which acts as the local $\text{HMI}$ (Human-Machine Interface).
- System Integrity: By providing a stable power source to the network backbone, it is crucial for maintaining the integrity and consistency of data exchange, especially in the Triple Modular Redundant ($\text{TMR}$) architecture of the Mark V system.
🛠️ Key Hardware Components
The $\text{DS200UPLAG1}$ is a specialized power and interface board with several notable hardware features:
- Power Supply: Contains a switching power supply section that converts the input voltage ($\text{115/230 VAC}$ or similar control power) to the required $\text{DC}$ voltage levels ($\pm \text{24 V}$ and $\text{5 V}$) for the network and interface components.
- Fuse Protection: Includes at least one fuse to protect the circuit from overcurrent.
- Connectivity: Features one or more connectors (e.g., a pair of 26-pin connectors and an 8-pin connector) for routing power and signals.
- Configuration: Typically equipped with internal controls such as:
- $\text{DIP}$ Switches: One or more blocks of $\text{DIP}$ switches (often two blocks of $\text{8}$ switches each) to configure the board’s operational parameters or communication settings.
- Toggle Switch: May include a toggle switch for local control of a specific function.
- Reset Button: A reset button for localized hardware resets.
The suffix G1 indicates the generation/grouping, and the trailing letters (e.g., $\text{ABA}$, $\text{BDA}$) signify specific functional and artwork revisions of the board, which are common in GE’s turbine control product lines.



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