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SPECIFICATIONS:
Part Number: IS220TUBRH2AAA
Manufacturer: General Electric (GE) / GE Vernova
Control System Series: Speedtronic Mark VIe Control System
Functional Acronym: TUBR
Product Type: Vibration Monitor Card / Terminal Interface Board
Hardware Revision Group: H2A (Second-Generation Optimized Backplane Integration)
Functional Version Code: AAA (Baseline Firmware & Hardware Layout)
Communication Link: High-Speed Redundant IONet Architecture
Channel Integration Infrastructure: Proximity Probes, Accelerometers, Velomitors, and Keyphasor Inputs
Cooling Profile: Passive Natural Convection (Fanless Structural Layout)
Enclosure Adaptation: Simplex, Dual, or Triple Modular Redundant (TMR) Cabinets
Onboard Diagnostic Monitoring: High-Precision Trace Self-Testing & Diagnostic LEDs
Processor Architecture: 32-Bit High-Performance Embedded Controller Core
Ethernet Interface Media: 100Base-TX IEEE 802.3u Compliant Copper Links
Circuit Protection Profile: Solid-State Positive Temperature Coefficient (PTC) Resettable Fuses
Backplane Integration Standard: High-Speed Parallel Bus Structure with Electrostatic Discharge (ESD) Shielding
Terminal Block Compatibility: Direct Mate with TMR and Simplex Vibration Terminal Boards (e.g., TVBA, TVBD)
Configuration Utility Infrastructure: ControlST Software Suite / ToolboxST Application Framework
Data Refresh Synchronization Window: Real-Time Core Frame Macro-Component Synchronization Execution
Electromagnetic Compatibility (EMC): EN 61000-6-2 (Industrial Immunity) & EN 61000-6-4 (Industrial Emissions)
Hazardous Location Certifications: Class I, Division 2, Groups A, B, C, D Compliance Layout
Printed Circuit Board (PCB) Protection: Conformal Coating Protection Against Airborne Particulates & Moisture
Grounding Matrix Structure: Dedicated Low-Impedance Chassis Ground Planes & Isolation Barriers
Repair Time: 3-5 Days
Availability: In Stock
Country of Origin: United States
IS220TUBRH2AAA is a 125 V DC Power Distribution Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. It accepts inputs from up to 14 sensors, including eight vibration/position sensors, four position-only sensors, and two reference probe/position sensors. Incoming signals are conditioned through amplification and filtering circuits to ensure accurate measurement. The board performs real-time analysis of vibration amplitude, shaft displacement, axial vibration, and radial vibration, comparing these signals against pre-configured trip and alert thresholds. It provides discrete alarm and trip outputs to the turbine protection system and analog outputs proportional to vibration levels for monitoring and control purposes. Communication with the turbine control system is achieved via IONet or Unit Data Highway (UDH), and the board supports both Simplex and Triple Modular Redundant (TMR) configurations. Operating on a +28 VDC power supply, the board incorporates self-diagnostics to detect sensor faults, signal integrity issues, and internal failures, enabling predictive maintenance and ensuring safe turbine operation.
COMPATIBILITY:
It supports both Simplex and Triple Modular Redundant (TMR) configurations. The board interfaces with I/O processors, analog/digital interface modules, and vibration sensors, including proximity probes, accelerometers, and reference probes. Communication is supported via IONet and Unit Data Highway (UDH) protocols. The board operates on a +28 VDC power supply and is fully backward-compatible with previous VAIC-generation boards, enabling seamless system upgrades or replacements without modification.
INSTALLATION:
It is installed in the designated Mark VIe control rack slot, secured with card guides and captive fasteners to ensure proper backplane connection. Sensor wiring from proximity probes, accelerometers, and reference probes is terminated on the board’s sub-D connectors and terminal strips according to the system wiring diagram, with shielded twisted pairs required and shields grounded at a single point. The board operates from the system’s regulated +28 VDC backplane supply, requiring no negative voltage. Communication links are established through IONet or Unit Data Highway (UDH) ports using specified cables. For the Simplex operation, one board is fitted, while TMR configurations require three synchronized boards in parallel slots. After installation, system diagnostics must be executed to verify power status, communication integrity, and sensor channel functionality.
NETWORK COMMUNICATOR & REDUNDANT POWER TRACKS:
The card communicates through standard, dual-channel high-speed full-duplex Ethernet ports natively integrated into the underlying terminal distribution assembly. The module features integrated soft-start inrush current management, enabling hot-swapping under live voltage load conditions without inducing voltage sag across the shared 28 V DC internal cabinet rails. Continuous hardware background self-tests check system memory banks and transceiver loops, routing immediate alarm flags to the ToolboxST engineering workstation if a hardware fault is detected.
WHY PARTNER WITH WORLD OF CONTROLS:
WOC offers the largest inventory of OEM replacement parts for GE Distributed Control Systems, ensuring that you have access to high-quality, reliable components when you need them most. In addition to supplying unused OEM parts, we also provide repaired and rebuilt boards, all backed by a warranty for your peace of mind. Our experienced team of automation experts is available 24/7 to assist with any OEM-related requirements, from troubleshooting and repairs to recommending the right replacement parts. Whether you need support for urgent system repairs or routine maintenance, WOC is committed to delivering fast, dependable solutions tailored to your needs. For detailed pricing, availability, or technical assistance regarding parts and repairs, please reach out to our team via phone or email, and we will be happy to provide prompt support.
FREQUENTLY ASKED QUESTIONS:
What is the GE IS220TUBRH2AAA?
The IS220TUBRH2AAA is a Vibration Monitor Card designed and manufactured for the GE Mark VIe Distributed turbine control platform. It serves as a specialized I/O processing interface that conditions, filters, and digitizes dynamic telemetry from proximity probes and accelerometers to track mechanical machine health and execute emergency safety trips.
What type of machine sensors can be wired into the TUBR module?
The card features highly adaptive input circuits that natively support eddy-current proximity probes (for displacement and position), velocity sensors, accelerometers, and high-speed pulse Keyphasor probes used for angular rotational phase alignment.
What testing procedures are performed by WOC to certify an IS220TUBRH2AAA board?
Each card is integrated into a live, running Mark VIe test chassis. Our technicians perform dynamic signal injection across various frequency profiles, cross-verify input sampling accuracies against original OEM specifications, test live software handshakes within ToolboxST, and evaluate long-term thermal stability.
