Description
⚙️ Product Description
The GE DS200DTBDG1A is a Mark V Contact Output Expansion Termination Module, also identified by the full part number DS200DTBDG1ABB. The board is part of the GE Speedtronic Mark V turbine control platform and provides field-wiring termination and interface functions for contact-output circuits. The DTBD board is not a processor or conventional analog I/O card; it serves as a terminal/interface component within the larger Mark V control architecture. The board is documented with two terminal blocks, multiple connectors, test points, and hardware jumpers. The exact terminal assignments, connector population, and jumper positions depend on the specific turbine cabinet and application, so the complete part number and installed wiring should be verified before replacement.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | DS200DTBDG1A |
| Full Part Number | DS200DTBDG1ABB |
| Series | Mark V / Speedtronic |
| Product Name | Contact Output Expansion Termination Module |
| Functional Acronym | DTBD |
| Product Type | Terminal / Relay Interface Board |
| Terminal Blocks | 2 |
| Signal Terminals | 107 terminals per block |
| 34-Pin Connectors | 3 |
| 40-Pin Connectors | 3 |
| Hardware Jumpers | 2 |
| Test Points | Multiple |
| PCB Coating | Conformal coating |
| Functional Revision | A |
| Artwork / Hardware Revision | B |
| Place of Origin | USA |
| Product Status | Used / Surplus — verify actual stock condition |
| Dimensions | Approx. 11.25 × 3 in board profile; verify before installation |
| Weight | Verify actual packed weight |
| Power | Application-dependent; field/output power is supplied through the associated Mark V architecture |
| Discontinued | Yes — legacy Mark V component |
🔧 Functional Features
• Designed for GE Mark V turbine control systems
• Provides contact-output field termination and expansion functions
• Two large terminal blocks for field signal wiring
• Multiple 34-pin and 40-pin interface connectors
• Includes hardware jumpers and test points for system integration and maintenance
• Interfaces with associated Mark V control and relay/output circuitry
• Intended for application-specific turbine cabinet configurations
• Suitable for maintenance, replacement, and legacy Mark V system support
❓ Frequently Asked Questions
Q1: What is the DS200DTBDG1A used for?
A: It is a GE Mark V Contact Output Expansion Termination Module used for field wiring termination and contact-output interfacing within Speedtronic turbine control systems.
Q2: Is DS200DTBDG1A an analog I/O board?
A: No. The DTBD is primarily a terminal/interface board for contact-output circuits rather than a conventional analog input module.
Q3: What is the relationship between DS200DTBDG1A and DS200DTBDG1ABB?
A: They are associated identifiers for the same DTBD board family. The complete DS200DTBDG1ABB marking should be compared with the existing board before ordering.
Q4: How many terminals does the board have?
A: The board is documented with two terminal blocks, with 107 signal-wire terminals associated with each block.
Q5: How many connectors are installed?
A: The documented configuration includes three 34-pin connectors and three 40-pin connectors.
Q6: Can any DTBD board be used as a replacement?
A: No. The complete part number, revision, terminal assignments, connector population, jumper positions, cabinet configuration, and field wiring should be matched before installation.
Q7: What should be checked before replacement?
A: Record the existing jumper positions and connector locations, verify the full board identification, inspect terminal wiring, and compare the replacement against the applicable Mark V cabinet drawings.
🛠️ Troubleshooting & Safety
If a contact-output circuit is malfunctioning, inspect the field wiring, terminal connections, connectors, jumper positions, associated relay/control cards, and external loads before replacing the terminal board. Because the DTBD operates as part of a larger Mark V output architecture, a board-level fault indication does not necessarily mean the terminal board itself is defective. Isolate the appropriate system power before removing or installing the board, use ESD protection when handling the PCB, and verify all wiring before returning the turbine control system to service.
⭐ Recommended Same-Brand GE Models
- GE DS200DTBAG1A — Mark V Digital Contact Terminal Board
- GE DS200DTBBG1A — Mark V Digital Connector Terminal Board
- GE DS200DTBCG1A — Mark V Connector Relay Terminal Board
- GE DS200TCRA1A — Mark V Relay Output Board
- GE DS200TCRAG1A — Mark V Relay Output Board
- GE DS200TCDAH1A — Mark V Digital I/O Control Board
- GE DS200TCDAH1B — Mark V Digital I/O Control Board
- GE DS200TCQAG1A — Mark V Analog I/O Board
- GE DS200TCEAG1A — Mark V Protection Interface Board
- GE DS200TBQAG1A — Mark V Terminal Board
- GE DS200TBQCG1A — Mark V Terminal Board
- GE DS200TBCCG1A — Mark V Terminal Board
- GE DS200TBQDG1A — Mark V Terminal Board
- GE DS200EXDEG1A — Mark V Excitation Control Board
- GE DS200EXPSG1A — Mark V Turbine Power Supply Board
