GE IS200VAICH1DAA IS200VAICH1D PC Board – Mark VI Series Modules

Model: IS200VAICH1DAA IS200VAICH1D

Series Mark VI
Model IS200VAICH1DAA IS200VAICH1D
RFQ-ready model route Obsolete and surplus sourcing Export follow-up by model list

Product Overview

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Commercial Path

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Technical Dossier

Product Details And Specifications

GE IS200 Series Technical Notes

The Evolution of IS200 Architecture

The IS200 module family was introduced as part of GE's Mark VI turbine control platform in the mid-1990s, succeeding the Mark V (IS200 predecessor boards used in VMIVME-based racks). The architecture is built around a triple-redundant (TMR) or simplex control topology, with modules communicating over the IONet (I/O Network) and ARCNET serial bus. Early IS200 modules used through-hole and mixed SMT component technology; later revisions transitioned to full SMT with FPGA-based logic replacing discrete gate arrays.

By the mid-2000s, GE introduced the Mark VIe platform, which extended IS200 compatibility while introducing Ethernet-based IONet (EtherNet/IP backbone). Many IS200 modules are cross-compatible between Mark VI and Mark VIe racks, though firmware and backplane connector variants must be verified. As of 2026, GE (now part of GE Vernova) has formally declared end-of-life (EOL) for the majority of IS200 series modules, transitioning customers toward the Mark VIe and Mark VIeS platforms. This makes long-term spare parts sourcing a critical operational requirement for any facility maintaining legacy Mark VI infrastructure.

IS200 Full Catalog & Functionalities (SKU List)

The following represents a verified cross-section of the IS200 module catalog, organized by functional category. Each entry reflects a distinct hardware assembly with a unique part number.

Analog & Voltage Input / Conditioning Boards

  • IS200VAICH1DAA: Analog input conditioning board, voltage/current signal interface for Mark VI TMR systems, 16-channel configuration.
  • IS200VAICH1D: Base revision of the VAICH analog input conditioner; functionally equivalent to DAA suffix, earlier production run.
  • IS200VAIAH1A: Analog input board, high-density thermocouple and RTD signal conditioning, Mark VI simplex rack.
  • IS200VCMIH2C: Contact multiplexer input board, 48-channel discrete contact monitoring, used in TMR voting logic configurations.
  • IS200VTCCH1A: Thermocouple input conditioning card, cold junction compensation integrated, 16-channel.

Digital Input / Output Modules

  • IS200VSVOH1B: Servo output board, 4-channel ±10V analog servo drive output, used in fuel valve and IGV control loops.
  • IS200VTURH1BEE: Turbine protection relay output board, hardwired trip relay interface, SIL-rated applications.
  • IS200VRTDH1C: RTD input board, 12-channel Pt100/Pt1000 resistance temperature detector interface.
  • IS200VDOEH1A: Digital output expansion board, 24VDC discrete output, 32-channel, DIN rail compatible.
  • IS200VDIEH1A: Digital input expansion board, 24VDC discrete input, 32-channel, optically isolated.

CPU & Controller Modules

  • IS200UCVEH2A: Mark VI main controller board (UCVE), dual-core processor, primary control execution engine for TMR and simplex configurations.
  • IS200UCVEH1A: Earlier revision of the UCVE controller; single-processor architecture, compatible with Mark VI R4.x firmware.
  • IS200EPDLH1A: Ethernet-based process data link board, IONet gateway for Mark VI to Mark VIe migration bridge configurations.

Power Supply & Backplane Modules

  • IS200EPSMH1A: Power supply module, 28VDC regulated output, rack-mount, supports TMR power redundancy topology.
  • IS200BPIAH1A: Backplane interconnect assembly, IS200 VME rack, 9-slot, primary bus interface board.

Communication & Network Adapters

  • IS200ECTBH1A: Ethernet communication terminal board, 100BASE-TX, IONet segment interface for Mark VIe-compatible racks.
  • IS200VPROH1B: PROFIBUS DP communication adapter, slave mode, integrates Mark VI I/O with third-party DCS or SCADA via PROFIBUS network.
  • IS200VSVOH1A: Serial communication and servo interface hybrid board, RS-422/RS-485 port plus 2-channel servo output.

Sourcing Hard-to-Find & Obsolete IS200 Parts

  • Direct cross-reference matching between legacy part numbers and current revision equivalents.
  • Batch procurement support for planned outage kits covering full rack repopulation.
  • Consignment inventory programs for high-volume operators requiring guaranteed availability windows.
  • Documentation support including revision history, firmware compatibility matrices, and wiring diagrams where available.

Modules such as the IS200VAICH1DAA and IS200VAICH1D are among the most frequently requested obsolete IS200 components due to their role in analog signal conditioning — a function that cannot be easily substituted without backplane-level redesign.

Quality Control for the IS200 Range

IS200 modules present specific test challenges due to their VME backplane bus architecture and multi-board signal routing. DriveKNMS applies the following verification procedures to all IS200 inventory prior to dispatch:

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