GE IS210MACCH2A & IS210MACCH2AKH Modules

Technical Dossier

Product Details And Specifications

GE IS210 Series: Comprehensive Module Range and Technical Overview

The GE IS210 series forms the backbone of the Mark VI Speedtronic turbine control system, one of the most widely deployed distributed control architectures in heavy industrial environments. Installed across gas turbine power plants, combined-cycle facilities, petrochemical refineries, offshore platforms, and nuclear auxiliary systems, the Mark VI platform governs turbine sequencing, protection logic, I/O interfacing, and inter-controller communication. The IS210 module family represents the field-side hardware layer of this architecture — responsible for analog and digital signal conditioning, terminal board interfacing, and backplane communication with the Mark VI controller rack.

The IS210MACCH2A and its hardware revision variant IS210MACCH2AKH are I/O interface boards designed for use within the Mark VI terminal board assembly. These modules handle analog and contact I/O marshalling between field instrumentation and the Mark VI controller, operating within the VME-based backplane environment. The suffix "KH" denotes a specific hardware revision level tracked by GE's internal configuration management system and does not alter the functional specification of the base part.

The Evolution of IS210 Architecture

The IS210 module family was introduced as part of GE's transition from the Mark V (IS200 series) to the Mark VI control platform in the mid-1990s. The Mark V used a parallel backplane architecture with dedicated processor boards (TCCA, TCPS, TCQC), while the Mark VI adopted a VME-based serial backplane with distributed I/O terminal boards connected via the IONet (a proprietary 100 Mbps Ethernet derivative). This architectural shift required a new generation of I/O interface hardware — the IS210 series — capable of supporting triple-redundant (TMR) and simplex control configurations.

Early IS210 revisions (suffix A, B) established the base electrical and mechanical form factor. Subsequent revisions (C through KH and beyond) addressed field-reported issues including connector wear, conformal coating specifications for high-humidity environments, and firmware-compatible EEPROM updates. Compatibility between hardware revisions is generally maintained within the same base part number, but GE's Mark VI configuration tool (ToolboxST) tracks revision levels for system validation purposes. Integrators replacing IS210 modules in legacy installations must verify the hardware revision against the site's ToolboxST configuration file to avoid validation warnings.

As of 2026, the Mark VI platform has entered the mature/end-of-active-production phase. GE Vernova (formerly GE Gas Power) continues to offer Mark VI lifecycle support under long-term service agreements (LTSAs), but new hardware procurement increasingly relies on authorized distributors and certified aftermarket suppliers for IS210-series components.

IS210 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the GE IS210 module family, organized by functional category:

I/O Interface & Marshalling Boards

• IS210MACCH2A: Mark VI analog/contact I/O marshalling board, base hardware revision
• IS210MACCH2AKH: IS210MACCH2A hardware revision KH; functionally equivalent, updated conformal coating
• IS210AEBIH3A: Analog input terminal board, 16-channel, 4–20 mA / thermocouple input
• IS210AEBIH3B: Analog input terminal board revision B; updated EMI shielding specification
• IS210BAIAH1A: Analog output terminal board, 8-channel, 4–20 mA output for valve positioners
• IS210BAIAH1B: Analog output terminal board revision B; extended temperature range
• IS210DCDBH1A: Digital contact input board, 24 VDC, 32-channel discrete input interface
• IS210DCDBH1B: Digital contact input board revision B; improved optical isolation specification

CPU & Controller Modules

• IS210CPNBH1A: Mark VI main controller board (VCMI equivalent); VME backplane CPU module
• IS210CPNBH1B: Controller board revision B; updated flash memory and watchdog timer circuit
• IS210CPNBH2A: Controller board variant 2; extended RAM for large I/O point counts

Communication & Network Adapters

• IS210ENET1A: IONet Ethernet communication module; 100 Mbps Mark VI network interface card
• IS210ENET2A: IONet Ethernet module revision 2; dual-port configuration for TMR redundancy
• IS210VCMIH2C: VME communication module; interfaces Mark VI controller to IONet and UDH networks
• IS210VCMIH2D: VCMI revision D; updated firmware for ToolboxST R04 and later compatibility

Power Supply Modules

• IS210PSOPH1A: Mark VI panel power supply output board; 28 VDC regulated output for I/O terminal boards
• IS210PSOPH1B: Power supply output board revision B; enhanced short-circuit protection

Sourcing Hard-to-Find & Obsolete IS210 Parts

DriveKNMS maintains a dedicated inventory program for IS210-series components, with particular focus on hardware revisions that have been superseded or discontinued by GE Vernova's active parts catalog. For operators running Mark VI systems under long-term service agreements without OEM hardware support, DriveKNMS provides the following sourcing capabilities:

• Stock verification against specific hardware revision suffixes (e.g., KH, B, C, D) required by ToolboxST configuration files
• Cross-referencing of obsolete IS210 part numbers against current GE Vernova replacement recommendations
• Emergency same-day dispatch for critical turbine protection module failures
• Kitting services for complete Mark VI rack rebuilds, including controller, I/O, power, and communication modules
• Long-term consignment stock agreements for operators with multiple Mark VI-equipped units

All IS210 modules sourced through DriveKNMS are traceable to documented supply chains. Modules previously installed in operational systems are reconditioned, tested, and supplied with test reports upon request.

Quality Control for the IS210 Range

IS210-series modules present specific test challenges due to their VME backplane interface, IONet communication stack, and mixed analog/digital signal conditioning circuits. DriveKNMS applies the following test procedures to IS210 inventory:

• Backplane continuity test: All VME connector pins verified for continuity and correct impedance against GE IS210 connector specification sheets
• Analog channel calibration: For analog I/O boards (AEBIH, BAIAH series), each channel is stimulated with a calibrated 4–20 mA source and output verified against GE accuracy specifications (typically ±0.1% full scale)
• Digital I/O functional test: Contact input boards (DCDBH series) are tested with 24 VDC stimulus across all 32 channels; optical isolator response time is measured and compared against datasheet limits
• IONet communication validation: ENET and VCMI modules are bench-tested in a live Mark VI rack environment to verify IONet packet transmission, error rate, and ToolboxST device recognition
• Visual and conformal coating inspection: All boards inspected under UV light for conformal coating integrity, corrosion, cold solder joints, and component damage consistent with field failure modes
• Burn-in soak: Modules are powered for a minimum 24-hour burn-in period at ambient temperature before release to stock

For IS210MACCH2A, IS210MACCH2AKH, and all IS210 series inquiries:

• Email: [email protected]
• WhatsApp: +86 18359293191
• Web: driveknms.com