GE IS200TVIBH2BBB | Original Mark VI Vibration Terminal Board

• Model & Brand: GE IS200TVIBH2BBB
• Functional Designation: TVIB
• Product Family: GE Speedtronic Mark VI
• Part Type: Vibration Terminal Board
• Primary Function: Interfaces and conditions turbine vibration-transducer signals for the Mark VI control system.
• Approx. Dimensions: Approximately 330 × 178 × 45 mm according to current supplier records; published dimensions vary by measurement convention.
• Estimated Net Weight: Approximately 0.8 kg based on current supplier listings.
• Estimated Shipping Weight: Approximately 1.1–1.4 kg with ESD shielding, cushioning, and export carton.
• Typical Supply: 24 VDC is reported by secondary technical sources; verify the exact Mark VI cabinet wiring before energization.
• Sensor Applications: Vibration/proximity, seismic, accelerometer, and velocimeter signal interfaces are reported for this board family.
• Board Hardware: Two large field-terminal blocks, multiple plug connectors, D-shell interfaces, inductors, and configuration jumpers are reported on the physical board.
• What’s in the Box: IS200TVIBH2BBB PCB only unless the purchase order specifically includes mating cables, terminal hardware, or other Mark VI accessories.
• Condition Control: For factory-sealed inventory, retain the original ESD bag, carton, labels, and date/lot records.

A key receiving-control point: several marketplace records describe this item as IS200TVIBH2BBB / IS200TVIBH2B, so the complete physical marking should be captured before the item is booked into inventory.

Product Introduction

In the GE Speedtronic Mark VI turbine-control architecture, the IS200TVIBH2BBB functions as a vibration termination/interface board between field vibration instrumentation and the control-system electronics. Its job is to provide the physical termination and signal-conditioning path needed for turbine vibration monitoring. Current technical records identify it specifically as a Vibration Terminal Board.

The board should not be treated as a generic analog input card. The TVIB assembly contains dedicated vibration-related interfaces and configuration hardware, and supplier records describe support for proximity, seismic, accelerometer, and velocimeter signals. In a legacy turbine installation, exact board suffix, connector assignment, and associated Mark VI hardware should be checked before replacement (a visually similar terminal board is not necessarily electrically equivalent).

Core Technical Specifications

The available secondary records are not fully consistent on dimensions and detailed electrical characteristics. The functional description and board identity are much better established than the exact channel-level specifications, so plant acceptance should rely on the applicable GE Mark VI drawing and manual rather than a reseller data sheet.

GE IS200TVIBH2BBB

Global Compliance & Industry Certifications

For the IS200TVIBH2BBB, certification needs to be established at the Mark VI system and installation level unless an exact board-level certificate is available.

• CE Mark: Verify the applicable GE Mark VI conformity documentation for the installed equipment and board revision. Do not infer standalone CE conformity from the part number.
• UL/cUL: No reliable standalone UL/cUL certification was established for the loose TVIB board from the available evidence.
• ATEX / IECEx: The TVIB board should not be represented as intrinsically safe. Hazardous-area suitability depends on the complete Mark VI installation, field interfaces, barriers, enclosure, and wiring method.
• Marine / DNV: No standalone DNV approval was reliably verified for this exact TVIB board.
• EMC: Preserve the original Mark VI shielding, grounding, and cabinet design used to establish EMC performance.
• Functional Safety: The board can participate in turbine monitoring/protection functions, but the presence of vibration monitoring circuitry does not establish an independent SIL certification for the PCB.

For compliance records, maintain the exact part number, hardware revision, serial/lot information, system certificate, Declaration of Conformity, and installation approval as separate controlled records.

Verify specific lot certifications with OEM.

Long-Term Storage & Asset Preservation Guide

Keep the TVIB in an ESD shielding bag. The large terminal blocks, board connectors, and exposed electronic components should remain protected against conductive dust, mechanical impact, and repeated handling.

Maintain warehouse humidity below 60% RH where practical. Although secondary listings report operation at up to 95% non-condensing humidity, that is not an appropriate multi-year storage target. A stable, dry environment reduces oxidation at terminal and connector contacts.

Freeze the configuration record. The board includes jumper hardware and extensive field termination. Photograph jumper positions, connector labels, and terminal identification before any functional test (do not assume the factory arrangement is interchangeable between turbine applications).

Protect the terminal blocks during shipping. Use rigid foam around the PCB perimeter and connector region. Do not place concentrated packing pressure directly onto the screw terminals or connector bodies.

Physical Installation Prerequisites

The is a Mark VI terminal-board assembly rather than a conventional DIN-rail I/O card. The board should be installed using the original GE cabinet mounting and connector arrangement.

Cabinet clearance: Preserve the original Mark VI board spacing and airflow. Do not introduce an arbitrary 50 mm clearance requirement when the cabinet drawing specifies another mechanical envelope.

Power: Secondary records report 24 VDC operation. Verify the exact Mark VI power-distribution drawing and connector pinout before applying power; do not bench-energize unverified pins.

Vibration-signal wiring: Maintain the original cable type, shield termination, and routing. Low-level vibration signals are particularly sensitive to electromagnetic interference and grounding errors.

Connector identification: Identify every plug and terminal position before removal. Multiple connectors are present on the TVIB assembly, and a single misplaced cable can create several apparently unrelated vibration alarms.

Grounding: Follow the Mark VI cabinet protective-earth and signal-shielding arrangement. Do not use signal returns as substitute protective-earth conductors.

Environmental control: Protect the board from condensation, conductive dust, oil mist, and excessive cabinet vibration. Secondary listings commonly specify a 0–60°C operating environment, but the installed Mark VI cabinet specification remains controlling.

Buyer’s FAQ — Logistics & Compliance Focus

Q: What HS Tariff Code should be used for ?
A: HS 8538.90 is a reasonable classification candidate for a terminal/interface board used with electrical control equipment, and some current commercial records use 85389091. Treat that as reference information only. The final national tariff classification must be validated against the importing country’s tariff schedule and the actual technical description.

Q: What Country of Origin should I declare?
A: Use the actual manufacturing origin supported by the physical label or GE traceability documentation. Several current supplier records report USA, but a reseller statement should not replace lot-specific COO evidence.

Q: Should I insure an international shipment of one TVIB board?
A: Yes for a production-critical turbine. Supplier records put the board around 0.8 kg, so freight weight is modest, but the downtime exposure associated with a failed vibration interface can be substantial. Use ESD shielding, rigid cushioning, connector protection, tracking, and cargo insurance based on the documented commercial replacement value.

Q: Does include the latest firmware pre-loaded?
A: No. This is a vibration terminal/interface board, not the Mark VI processor responsible for application firmware. Acceptance should focus on the exact board identity, hardware revision, connector condition, jumper configuration, vibration-signal path, and compatibility with the associated Mark VI electronics.

Q: Is interchangeable with every TVIBH2B board?
A: No automatic substitution should be made. The complete suffix H2BBB should remain in the purchasing and warehouse record. Related TVIB configurations exist, and differences in signal termination, hardware revision, or connected electronics can affect compatibility.