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The GE DS200UPLAG1ADA LAN Power Supply Board is a circuit card designed for use in the General Electric Mark V Speedtronic Turbine Control System.
Its core function, designated by the acronym 1$\text{UPLA}$, is to provide regulated and stable power specifically for the Local Area Network (2$\text{LAN}$) communication components within the turbine control module.3
⚙️ Key Details and Revision
The part number $\text{DS200UPLAG1ADA}$ provides specific details about the board’s design and revision level:
| Segment | Description | Detail for DS200UPLAG1ADA |
| DS200 | Series Tag | $\text{Mark V}$/Drive Control product line |
| UPLA | Functional Acronym | LAN Power Supply |
| G1 | Grouping Tag | Design Group 1 |
| A | 1st Functional Revision | Revision A |
| D | 2nd Functional Revision | Revision $\text{D}$ (Indicates an updated functional design) |
| A | Artwork Revision | Revision A ($\text{PCB}$ layout/coating) |
Functional Importance
This board is essential for the reliable operation of the Mark V system, particularly its fault-tolerant Triple Modular Redundancy ($\text{TMR}$) architecture. The $\text{LAN}$ is the critical pathway for the $\text{R}$, $\text{S}$, and $\text{T}$ control processors to exchange data and execute the necessary 2-out-of-3 voting logic. The $\text{UPLA}$ card ensures this communication path remains energized with clean power.
Replacement Caution
When replacing this board, it is vital to match the configuration settings—such as any jumpers or $\text{DIP}$ switch positions—from the old card to the new $\text{DS200UPLAG1ADA}$ card. These settings customize the board’s operation for the specific turbine application.
