Description
Product Parameters
- Model Number: DS200CTBAG1ADD
- Series: Mark V Speedtronic Control System
- Board Type: Termination Input Board (CTBA)
- Signal Channels: 15 Terminal blocks (supporting up to 30-45 signal points depending on wiring)
- Compatibility: GE Mark V “R”, “S”, and “T” cores
- Connector Type: 2 x 50-pin ribbon cable connectors (J-connectors)
- Mounting: DIN-rail or standoff mounting within the Mark V cabinet
Product Description The GE DS200CTBAG1ADD is a Termination Input Board (CTBA) specifically designed for the Mark V Speedtronic turbine control system. It acts as the primary physical interface between field-side wiring and the internal control logic. This board is responsible for routing analog and digital signals from sensors (such as limit switches, pressure transmitters, and thermal sensors) to the control core processors. The “G1” indicates the group/revision, while the “ADD” suffix refers to specific factory-installed hardware options or functional enhancements tailored for specialized turbine configurations.

GE DS200CTBAG1ADD

GE DS200CTBAG1ADD

GE DS200CTBAG1ADD
Application Areas This board is a critical component in the control architecture of GE Gas and Steam Turbines. It is used to:
- Signal Consolidation: Gathering field inputs and organizing them for transmission via ribbon cables to the digital processing boards.
- Redundant Control: Facilitating the Triple Modular Redundant (TMR) architecture by distributing signals across the “R”, “S”, and “T” processors.
- Heavy Industrial Environments: Serving as the termination point in power plants, oil refineries, and large-scale industrial drive systems.
Product Specifications
- Weight: 0.75 kg
- Dimensions: 230 mm x 150 mm x 35 mm
- Country of Origin: USA
- Environmental Rating: Standard industrial indoor (cabinet-mounted)
Operational Precautions
- Ribbon Cable Integrity: The 50-pin J-connectors are sensitive. Ensure the ribbon cables are fully seated and that the locking tabs are engaged. Intermittent connections here can cause “I/O Voter Failure” alarms in the Mark V diagnostic tool.
- Wiring Torque: Do not over-tighten the terminal screws. Excessive torque can crack the PCB traces or damage the terminal block housing. Use a precision screwdriver and follow the recommended torque settings for the wire gauge used.
- Static Protection: Like all DS200 series boards, the CTBA is sensitive to Electrostatic Discharge (ESD). Always wear a grounded wrist strap when handling the board or making wiring changes.
- Labeling: Before disconnecting an old board, clearly label every wire. The CTBA handles a high density of signals, and a single crossed wire can lead to improper sensor readings or unexpected turbine trips.
Recommended Similar Product Models
| Model Number | Product Category | Feature Set |
|---|---|---|
| DS200CTBAG1A | Termination Board | Base version without “DD” options |
| DS200TBQBG1A | Termination Board | Contact Input Termination Board |
| DS200TCQAG1A | Processing Board | Analog Input/Output Board (paired with CTBA) |
| DS200SDCCG1A | Control Board | Drive Control Board (Mark V series) |
| DS200RTBAG1A | Relay Board | Remote Terminal Relay Board |
