GE DS200TCCAG1BAA – Analog I/O Board for Mark V/EX2000 Turbine and Drive Control

The GE DS200TCCAG1BAA (often referred to as the TCCA board) is the common analog I/O module used within the Speedtronic Mark V and related EX2000/Drive systems. It sits on the rack backplane and conditions plant analog signals, handles A/D and D/A conversion, and distributes clean, scaled values to the control processor. From my experience, this is the board maintenance teams reach for when analog feedbacks (flows, pressures, temperatures) need stable, low-noise acquisition or when analog reference outputs must remain rock solid across temperature and load changes.

You might notice that the model code breaks down as DS200 (Mark V series PCB), TCCA (TC2000 Common Analog), G1 (hardware group 1), and BAA (B-revision hardware). That matters for form/fit/function matching during replacement and when aligning with your existing terminal boards and harnesses.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment method: 50% advance payment, full payment for delivery
• Express delivery methods: fedex, UPS, DHL

Key Features

• High‑accuracy analog input conditioning – Differential inputs with filtering help minimize noise pickup from long field runs.
• On‑board A/D and D/A conversion – Converts field values into digital data for the controller and provides stable analog references back to the process.
• Backplane integration – Communicates directly over the Mark V backplane; no external fieldbus configuration is typically required.
• Ribbon/harness connectivity to terminal boards – Mates with GE terminal boards (e.g., TBC/TBA family) for clean field wiring segregation.
• Status/health indication – Onboard diagnostics and LED indicators allow quick checks during commissioning or troubleshooting.
• Drop‑in replacement behavior – Sized for the standard TC2000/Mark V rack slot so changeout is usually fast, with minimal rework.

Technical Specifications

Brand / Model	GE DS200TCCAG1BAA (TCCA – TC2000 Common Analog I/O)
HS Code	8538.90 (Parts for switchgear/control panels – indicative for industrial control PCBs)
Power Requirements	Backplane-supplied; 5 VDC logic and ±15 VDC analog rails (typical for Mark V I/O)
Operating Temperature	0 to 60 °C in a ventilated control cabinet (typical Mark V cabinet conditions)
Signal Input Types	Analog process signals via terminal boards; commonly 4–20 mA and low‑voltage ranges with filtering and scaling
Signal Output Types	Analog reference outputs (voltage/current, as supported by the connected terminal board and application)
Communication Interfaces	Mark V backplane bus to the control processor; ribbon/harness links to terminal boards
Installation Method	Plug-in board; secures to the rack with captive hardware; connect to field terminal boards via ribbon cables
Dimensions & Weight	Mark V rack-format PCB; fits the standard TC2000 slot; shipping weight typically under 1 kg

Application Fields

The DS200TCCAG1BAA is used wherever the Mark V or EX2000 system needs precise analog acquisition and stable output references:

• Gas and steam turbine control (governor, fuel/steam valve positioning, temperature/pressure feedbacks)
• Drive systems and EX2000 excitation platforms requiring clean analog feedback loops
• Balance-of-plant loops (pumps, fans, dampers) brought into Mark V for closed-loop regulation
• Industrial process skids integrated with legacy GE Speedtronic controls

Advantages & Value

• Reliability in harsh cabinets – Designed for continuous-duty turbine environments; analog front-end typically remains stable across load and temperature.
• Form/fit compatibility – G1 hardware group means it aligns with common Mark V terminal boards and wiring layouts.
• Lower lifecycle cost – A direct board replacement avoids retuning loops or requalifying an entire rack, which in many cases saves weeks.
• Serviceability – LEDs, test points, and jumper options simplify field diagnostics and reconfiguration.
• Stable supply and support – Typically easier to source than full panel retrofits, with predictable commissioning steps.

Installation & Maintenance

• Cabinet environment – Install in a clean, ventilated Mark V rack. Maintain ambient within 0–60 °C and keep cable routing tidy to reduce analog noise.
• ESD and handling – Use wrist straps and antistatic packaging. Inspect edge connectors and ribbon headers before insertion.
• Wiring – Verify terminal board part numbers and ribbon orientation. Shielded twisted pairs are recommended for low-level analog signals.
• Configuration – Match jumpers/switches to your prior board (or as-built records). Scaling and channel assignments are typically managed in the Mark V software constants.
• Routine care – Periodically clean dust from the rack, check connector tightness, and review analog calibration during scheduled outages. Firmware updates are usually not applicable to this analog board, but keep controller software constants backed up.
• Safety – De-energize the rack section when possible. Tag-out plant loops tied to analog outputs to avoid unintended motion/valve travel.

Quality & Certifications

• Manufactured under ISO 9001 quality systems (typical for GE production lines)
• CE compliance and UL recognition where applicable to the rack assembly
• RoHS status may vary by vintage; many legacy Mark V boards are exempt due to application
• 365‑day warranty coverage (repair/replace)

Complementary/Supporting Components

• DS200TBCAG1 – Terminal board commonly paired with TCCA for field analog terminations.
• DS200TCQAG1 – Control processor/quantizer board interfacing with TCCA over the backplane.
• DS200TBQAG1 – Additional terminal board for segregating low‑level analog and discrete signals.

“We swapped in a DS200TCCAG1BAA during a hot-summer outage. The analog loops came back within tolerance without touching the constants—saved us a long night of retuning.” — Maintenance lead, combined-cycle plant

If you’re matching a specific revision, G1/BAA typically aligns well with most Mark V assemblies, but I always suggest sharing a cabinet photo or your existing TCCA part/revision so we can double-check connector and jumper parity before shipment.