The GE Fanuc DS200TCDAH1BHD, also cataloged as the DS200TCDA Digital I/O Board, operates as a dedicated hardware component for discrete contact signal processing within Mark V Turbine Control System platforms.
Suffix Breakdown & Model Matrix
The part number DS200TCDAH1BHD reflects specific factory design updates and revision levels applied to the base platform:
- DS200: Standard Mark V series printed circuit board designation.
- TCDA: Functional acronym designating the Digital Input/Output Board interface.
- H1: Group 1 hardware production series.
- B: 1st functional product revision level.
- H: 2nd functional product revision level.
- D: Artwork design revision level.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200TCDAH1BHD |
| Brand | GE Fanuc |
| Origin | USA |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Backplane / TCPS Distribution Driven |
| Conformal Coating | Yes (Factory Standard) |
| Digital Status Indicators | 1 x Side LED, 1 x Block of 10 Status LEDs |
| Jumper Configurations | 8 x Onboard Jumpers (JP1 through JP8) |
| Interface Connectors | 2 x 3-Pin Connectors, 2 x 50-Pin Ribbon Cable Connectors |
| System Connectors | JP (TCPS Power), JQ (DTBA Inputs), JR (DTBB Inputs), JO1/JO2 (TCRA Outputs), JX1/JX2 (IONET Daisy-Chain) |
Backplane Bus Communication & Firmware Compatibility
The GE Fanuc DS200TCDAH1BHD processes contact inputs and output relay drivers through direct connection to the IONET system bus via the JX1 and JX2 daisy-chained connectors. Backplane communication bus velocity supports deterministic transfer of digital state transitions to the main processor cores without introducing processing latencies. Onboard jumpers control hardware scaling and network address termination, maintaining full firmware flash compatibility across active, standby, and redundant triple-modular Mark V architecture racks.
Frequently Asked Questions
Q: What is the procedure for configuring the onboard jumpers during board replacement?
A: Before installing a replacement board, document the physical position of all jumpers (JP1 through JP8) on the original board. Ensure the replacement board jumpers match the original pin positions, as factory default settings may not reflect site-specific signal configurations.
Q: Which connectors link the DS200TCDAH1BHD to field contact inputs and relay outputs?
A: Contact input signals are routed via the JQ (DTBA board) and JR (DTBB board) connectors, while contact output signals route through the JO1 and JO2 connectors to the TCRA relay board.
Q: What onboard visual indication is available for real-time troubleshooting?
A: The board includes one side-mounted operational LED along with a dedicated block of 10 LEDs to display real-time I/O channel states and system activity.
Field Installation Guidelines
- Electrostatic Precautions: Always wear a grounded ESD wrist strap and handle the board by its non-conductive edges. Store and transport the module in anti-static shielding bags.
- Jumper Position Matching: Verify that jumpers JP1 through JP8 match the documented positions of the original unit. Do not alter jumpers designated in factory documentation as reserved for internal manufacturer calibration.
- Connector Engagement: Align all 50-pin ribbon cables, power distribution connectors (JP), and IONET connectors (JX1/JX2) straight on to avoid bending header pins. Ensure locking latches fully engage.
- Conformal Coating Care: Ensure mounting hardware does not scratch or degrade the protective conformal coating layer, which prevents environmental moisture and contaminant damage.
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