Description
Unboxing & Hardware Overview
- Manufacturer & Architecture: General Electric (GE Industrial Systems / Speedtronic Mark V Turbine Control Platform)
- Part Number / Model: DS200TCDAH1BHD (Functional Acronym: TCDA)
- Product Type: Digital Input/Output Board (Digital I/O Module)
- Physical Dimensions: Standard multi-layer Mark V printed circuit board assembly featuring onboard microprocessors, PROMs, status LED arrays, and ribbon cable interface headers
- Estimated Shipping Weight: ~1.9 lbs (0.86 kg) enclosed in heavy industrial anti-static ESD shielding and structural protective cushioning
- Primary Condition Status: Factory New / New Surplus / Refurbished Tested options available (verify specific lot status with provider prior to dispatch)
Product Introduction
The GE DS200TCDAH1BHD is a core printed circuit board designed for the Speedtronic Mark V gas and steam turbine control system. Operating as a Digital I/O Board (TCDA), it manages discrete input and output signals within the control rack architecture, ensuring reliable communication and switching logic across the turbine’s automation network.
The board features an onboard microprocessor layout, programmable read-only memory (PROM) modules, diagnostic LED blocks, and dual 50-pin ribbon connectors (typically designated as JQ and JR) that interface directly with downstream termination boards like the DS200DTBA and DS200DTBB.
Core Technical Specifications
| Parameter | Value |
| Product Model | DS200TCDAH1BHD (TCDA) |
| System Compatibility | GE Speedtronic Mark V Gas, Steam, and Industrial Turbine Control Systems |
| Board Classification | Digital Input/Output Board |
| Microprocessor & Memory | Onboard microprocessor configuration with associated PROMs |
| Interface Connectors | Dual 50-pin ribbon cable headers (JQ, JR), two 3-pin configuration ports (JX1, JX2) |
| Diagnostic Indicators | 10-element LED block and individual edge status LEDs |
| Onboard Configuration | 8 hardware configuration jumpers (JP1 through JP8) |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% non-condensing |
Compliance & Standards Alignment
- Designed and manufactured in strict compliance with heavy industrial electrical specifications for power generation and turbine management environments.
- Treated with a standard industrial PCB conformal coating to resist atmospheric moisture, airborne dust, and corrosive degradation inside core control cabinets.
Technical Note: Before swapping or commissioning a replacement TCDA board, meticulously record the physical placement of all eight configuration jumpers (JP1–JP8). Set the jumpers on the new replacement board to match your existing system configuration exactly to ensure proper site-specific hardware mapping.
Storage & Asset Preservation Guidelines
- Store the circuit board hermetically sealed inside its original metallized anti-static (ESD) shielding bag to protect sensitive CMOS integrated circuits and microprocessors from electrostatic discharge.
- Maintain warehouse storage environments where relative humidity is strictly kept below 60% to prevent edge-connector pin oxidation.
- Avoid mechanical stacking or heavy pressure on the board to prevent structural micro-fractures in the multi-layer printed circuit substrate.
Physical Installation Prerequisites
- Ensure that all core rack power supplies and associated turbine control cabinet feeds are completely de-energized and locked out (LOTO) prior to handling, insertion, or card replacement.
- Slide the board carefully into its designated slot within the Mark V control rack, ensuring clean and complete engagement with backplane pin headers.
- Verify that all 50-pin ribbon cables (such as those connecting to the DTBA/DTBB terminal modules) are securely plugged in and locked before system re-energization.
Buyer’s FAQ & Logistics
Q: What Harmonized System (HS) code applies to this Mark V digital I/O board?
A: Industrial electronic control system printed circuit assemblies and control panel parts typically classify under HS code 8538.90 (parts suitable for use solely or principally with control apparatus). Confirm final classification parameters with your licensed customs broker.
Q: What is the significance of the “BHD” suffix on this part number?
A: The suffix designates the specific hardware grouping (H1), major revision tier (B), and layout/firmware iteration (HD). Always cross-reference your system panel documentation and hardware bill of materials (BOM) prior to replacement.
Q: Is the listed online price final for procurement?
A: Note: Price is subject to market conditions and available surplus inventory levels; contact our technical sales desk for a formal, time-sensitive quotation.
