GE DS200TBCAG1AAB | Mark V Analog I/O Terminal Board

Description

• Model & Brand: DS200TBCAG1AAB | GE General Electric
• Series: Mark V Speedtronic DS200
• Part Type: Analog I/O Terminal Board
• Physical Dimensions: Approx. 11.5 × 3.0 in (292 × 76 mm) board envelope
• Estimated Net Weight: Approx. 0.35–0.45 kg, depending on attached terminal hardware
• Estimated Shipping Weight: Approx. 0.8–1.2 kg with ESD packaging and protective carton
• What’s in the Box: DS200TBCAG1AAB board; ESD shielding bag; protective packaging; mounting hardware only when specifically stated
• Terminal Blocks: 2 blocks
• Signal Terminations: 90 terminals per block, 180 terminal positions total
• Ribbon Connectors: 2 × 50-pin connectors
• Functional Acronym: TBCA
• PCB Coating: Normal coating
• Revision Identification: Functional Revision A / A; Artwork Revision B

Product Introduction

Within a Mark V cabinet, this board is the physical handoff point between field analog wiring and the turbine-control electronics. GE DS200TBCAG1AAB is an Analog I/O Terminal Board for the Mark V Speedtronic platform. The board provides two large terminal blocks, each carrying up to 90 signal-wire termination positions, together with two 50-pin connectors for the internal control-system interface.This makes the exact terminal assignment and connector identification part of the replacement procedure, not merely an inventory detail.

The DS200TBCAG1AAB belongs to the legacy DS200 Mark V board family and is still encountered in gas- and steam-turbine service. Current industrial inventory records identify the board as an original GE Mark V Analog I/O Terminal Board, with the physical board and terminal arrangement documented separately from newer Mark VI/Mark VIe hardware.A like-for-like spare can preserve existing field wiring, cable routing, and cabinet engineering; however, the exact AAB revision should be recorded before approving a substitution (similar-looking TBCA boards are not automatically equivalent).

Core Technical Specifications

GE Mark V inventory documentation identifies the DS200TBCAG1AAB as an Analog I/O Terminal Board and records the A/A/B functional and artwork revision structure.

🚨 Global Compliance & Industry Certifications

The should be treated as a component of a Mark V control system, rather than as independently certified field equipment.

• CE Mark: No standalone CE declaration specific to was established in the documentation reviewed.
• UL/cUL: No board-specific UL/cUL listing was established for this exact part number.
• ATEX/IECEx: No standalone ATEX or IECEx certification was established for the board.
• Marine Approvals: No specific DNV, ABS, or Lloyd’s Register approval was established.
• System-Level Compliance: The applicable Mark V cabinet, enclosure, field wiring, power-distribution equipment, and installation method determine the certification status of the overall assembly.
• EMC: Analog field wiring requires appropriate routing, grounding, and shielding practices to preserve the control-system EMC performance.

For customs and audit purposes, do not copy a certification from a later Mark VI/Mark VIe terminal board onto this Mark V DS200 unit. GE’s later Mark VIe certification documents cover specifically identified Mark VIe equipment and terminal-board combinations rather than establishing certification for every historical DS200 board.

Verify specific lot certifications with OEM.

GE DS200TBCAG1AAB

🚨 Long-Term Storage & Asset Preservation Guide

Keep the inside an ESD shielding bag. The board contains semiconductor components and exposed connector contacts; uncontrolled handling can introduce electrostatic or mechanical damage long before installation.

Keep terminal hardware clean and dry. Maintain the warehouse below roughly 60% RH where practical, with no condensation cycles. Humidity control is particularly important around the screw terminals and connector contacts because oxidation can create intermittent field-signal faults.

Store the board horizontally with mechanical support. Avoid stacking heavy boards directly against the two terminal blocks. The terminal assemblies can deform under point loading even when the PCB remains visually intact.

Record the revision and terminal arrangement. Photograph the complete label, both terminal blocks, and both 50-pin connectors before putting the spare into long-term stock. This gives the maintenance team a physical reference years later.

Do not apply a generic capacitor-reforming interval. The reviewed documentation does not specify a dedicated reforming schedule for this board. A controlled bench inspection and electrical verification before critical deployment are preferable.

Physical Installation Prerequisites

The is an internal Mark V board, not a DIN-rail component. It is installed within the Mark V cabinet and interfaces with field wiring through its terminal blocks and with internal turbine-control electronics through ribbon connections.

Before installation:

• Confirm the host system is a GE Mark V Speedtronic installation.
• Verify the complete part number and A/A/B revision markings.
• Photograph and label every field wire before removing the old board.
• Preserve the exact terminal-to-wire assignment.
• Verify both 50-pin ribbon connectors and their orientation before disconnection.
• Inspect connector contacts for bent, recessed, oxidized, or contaminated pins.
• Check the terminal-block screws and insulation barriers for damage.
• Record the board mounting-hole positions and hardware before removal.
• Maintain the original field-cable routing to reduce noise pickup and avoid unnecessary mechanical stress.
• Confirm cabinet grounding and shield termination against the approved Mark V drawings.
• Keep analog signal wiring separated from high-current switching conductors where cabinet routing permits.
• Do not impose a generic 50 mm clearance requirement around the PCB. Cabinet ventilation and service clearance should follow the actual Mark V enclosure design.
• Use ESD controls during removal, inspection, and installation.

Buyer’s FAQ

Q1. What HS tariff code should be used for ?
A: Final tariff classification depends on the importing country’s tariff schedule and the legal description used for customs entry. As a dedicated printed-circuit termination component, HS heading 8538 may be considered where the importer classifies it as a part suitable for electrical control apparatus. The final country-specific code should be confirmed by the importer or customs broker.

Q2. Does Country of Origin mean the country from which the board is shipped?
A: No. COO concerns the applicable origin rules for the physical board, not the export warehouse. For audit control, retain the actual board identification, manufacturer-origin evidence or supplier declaration, commercial invoice, and Certificate of Origin when required.

Q3. How should I package and insure this board for international freight?
A: Place the board inside an ESD shielding bag, protect both 50-pin connectors and terminal blocks with rigid cushioning, immobilize the PCB in the carton, and use moisture protection appropriate to the shipping route. The bare-board weight is generally well below 1 kg, but the actual packed weight should be measured before freight booking.For a critical turbine spare, insurance should cover the full declared replacement value.

Q4. Does include the latest firmware pre-loaded?
A: No. This is a termination/interface board rather than a processor or intelligent controller. No standalone application firmware should be expected. The critical configuration records are the terminal assignments, ribbon-cable connections, board revision, and host Mark V system configuration.

A: No, not as a normal maintenance operation. Extensive field wiring is connected directly to the board, and the two 50-pin interfaces connect it to the turbine-control system. Follow the site’s approved Mark V isolation procedure, document the wiring before removal, install the replacement, then perform continuity and functional checks before re-energization.