Technical Specifications and Board Design
This RST overflow board provides additional I/O capacity for GE Mark V turbine systems. The GE DS200TCQCG1B DS200TCQCG1BKG handles signals that exceed the main board’s channel count. You can install this board into any available Mark V rack slot position. Its high-density design maximizes channel capacity within limited rack space. The board weighs approximately 0.56 kilograms. Its dimensions measure 28 cm in height, 18 cm in width, and 2.5 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | GE Energy / General Electric |
| Model | DS200TCQCG1B DS200TCQCG1BKG |
| Category | RST Overflow Board / I/O Expansion Card |
| Weight | 0.56 kg |
| Height | 28 cm |
| Length | 18 cm |
| Thickness | 2.5 cm |
| Number of Discrete Inputs | 16 channels (24V DC) |
| Discrete Input Response | 5 milliseconds typical |
| Number of Discrete Outputs | 16 channels (24V DC, 0.5A) |
| Number of Analog Inputs | 4 differential channels |
| Analog Input Range | ±10V DC or 4-20 mA (selectable) |
| Analog Input Resolution | 12-bit (0.0024V or 0.002 mA) |
| Number of Analog Outputs | 2 isolated channels |
| Analog Output Range | 0-10V DC or 4-20 mA (selectable) |
| Analog Output Resolution | 10-bit (0.0098V or 0.016 mA) |
| Isolation Voltage | 1500V DC between field and logic |
| Energy Storage | Local decoupling capacitors (no battery) |
| Component Count | Single PCB with optocouplers, ADCs, DACs, and drivers |
Overflow Functionality and Channel Allocation
The board handles I/O points that overflow from the primary RST card. Each channel maps directly to the main controller’s memory space. The GE DS200TCQCG1B DS200TCQCG1BKG operates as a seamless extension of the base system. You do not need special programming to access these additional channels. The board automatically synchronizes with the main I/O scan cycle. A green LED indicates proper communication with the turbine controller. The overflow board shares the same backplane bus as all other Mark V cards.
Mixed I/O Capabilities and Signal Types
Sixteen discrete inputs monitor status signals from auxiliary turbine equipment. Sixteen discrete outputs drive annunciators, indicators, and small relays. The GE DS200TCQCG1B DS200TCQCG1BKG also provides four analog inputs for less critical sensors. Two analog outputs control trim actuators or secondary loops. The discrete outputs include short-circuit protection for each channel individually. Each analog channel includes a yellow LED for signal activity indication. The board handles both voltage and current signals on the same terminal.
Installation and Operational Guidelines
You must insert this board into a standard Mark V rack slot away from the main card. The backplane supplies 5V and 24V DC power to the board automatically. The GE DS200TCQCG1B DS200TCQCG1BKG draws approximately 280 mA from the 5V supply. It draws an additional 150 mA from the 24V supply rail. You should use separate cables for discrete and analog field wiring. This practice prevents digital noise from coupling into analog signals. The board stores no configuration data independently. Therefore, the turbine controller retains all channel mapping and scaling values.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 170 × 145 × 65 mm |
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