IS200HFPAG2ACB | GE Mark VI HMI Controller Board | OEM Stock

Description

Product Core Brief

• Model: IS200HFPAG2ACB
• Brand: General Electric (GE)
• Series: Mark VI (Legacy – VME backplane platform) – G2 High-Resolution Series
• Core Function: High-resolution front panel HMI display controller with dedicated graphics processor, expanded 16×8 keypad matrix, and keypad ESD protection
• Product Type: Display Controller / Operator Interface Board (High-Resolution Variant)
• Key Specs: 5 VDC backplane power | VME 6U form factor | High-resolution display output | 1 MB video RAM | 16×8 keypad matrix (128 keys) | ±15 kV keypad ESD protection
• Condition: ⚠️ New Surplus – OEM sealed. This is the rarest G2 configuration—combines high-resolution graphics with expanded keypad and ESD protection. Extremely limited stock.

Product Introduction

This IS200HFPAG2ACB is a factory-sealed front panel display controller from GE’s legacy Mark VI turbine control platform. It is the most advanced HMI board ever produced for the Mark VI—combining the high-resolution display capability and dedicated graphics co-processor of the G2 series with the expanded 16×8 keypad matrix and ±15 kV ESD protection of the G1 “C” suffix boards. This board represents the absolute pinnacle of Mark VI front panel hardware.

The “ACB” suffix on a G2 board tells you this is not a standard G2A. “A” is the base hardware revision, “C” indicates the expanded 16×8 keypad matrix (128 keys) with ESD protection on every matrix line, and “B” confirms this is a G2-series board with the advanced graphics processor. This configuration was never widely produced—it was typically custom-ordered for high-end turbine control rooms with large-format, high-resolution displays and full numeric/function keypads. If you have one of these systems, replacement boards are exceptionally difficult to source.

Key Technical Specifications

Key Selling Points & Differentiators

• The Ultimate Mark VI HMI Board: High-resolution graphics + dedicated co-processor + 128-key matrix + ESD protection. No other Mark VI front panel board offers this combination. This is the board you buy when you need the best possible operator interface and the highest reliability.
• High-Resolution Display with Hardware Acceleration: Drives VGA or higher resolution LCD panels with 256 colors and anti-aliased graphics. The dedicated co-processor handles all rendering, so page transitions are instantaneous and the main CPU stays focused on turbine control. Standard G1 boards can’t match this performance.
• 128-Key Matrix with Full ESD Protection: Supports up to 128 keys—full numeric keypads, soft-key rows, custom function arrays—with ±15 kV ESD suppression on every line. No more dead keys from static discharge. This is the same robust keypad interface found on the G1 ACB/ADC boards, now paired with G2 graphics.
• Enhanced EMI Shielding: Additional ground plane layers and shielding on the G2ACB protect the graphics processor and display output from electrical noise. This board is designed for the noisiest turbine control environments.
• 100% Live-Tested on High-Resolution Panel with ESD Stress: Every G2ACB runs the complete G2 test sequence—full resolution/color pattern test, graphics processor performance verification—plus keypad ESD injection at ±15 kV and conducted EMI on the display cable. This is the most thoroughly tested board in our inventory.

Frequently Asked Questions (FAQ)

Q: What makes this G2ACB different from a standard G2A board?

A: The standard G2A has an 8×8 keypad matrix (64 keys) with no ESD protection. The G2ACB adds the expanded 16×8 matrix (128 keys) and ±15 kV ESD suppression on every keypad line. The display and graphics capabilities are identical. If you have a high-resolution panel and a large keypad, and you’ve had static-related keypad failures, this is the exact board you need.

Q: What makes this G2ACB different from the G1 ACB or ADC boards?

A: The G1 series uses a standard-resolution display controller with software-rendered graphics. The G2ACB has a dedicated graphics co-processor, higher resolution support, and 256-color capability. The keypad interface (16×8 with ESD) is the same on both. The G2ACB is for high-resolution LCD panels; the G1 boards are for standard-resolution panels. They are not interchangeable.

Q: Will this board work with my existing G1 display cable?

A: No—the G2 series uses different signal timing and pin assignments on the 40-pin ribbon cable. Using a G1 cable on a G2 board will result in no display or corrupted video. Your cabinet should already have the correct G2 cable if it originally shipped with a G2 board. If you’re upgrading from G1 to G2, you’ll need a new cable. We can source the correct cable for your panel.

Q: I have a standard 64-key panel. Will this board work?

A: Yes—the G2ACB defaults to 8×8 mode if it detects fewer rows populated. It’s fully backward-compatible with standard 64-key panels. The expanded keypad support is available for future upgrades; you don’t have to use it immediately. If you later add a larger keypad, the board supports it without hardware changes—just enable the additional keys in ToolboxST.

Q: Can I use this board with a color LCD?

A: Yes—the G2ACB is specifically designed for color LCDs, supporting up to 256 colors at VGA resolution or higher. This is a significant upgrade over the G1 series, which is limited to monochrome or basic color palettes. For custom animated graphics or complex trend displays, the G2ACB provides the performance and color depth you need.

Q: Does this board have ESD protection on the keypad lines?

A: Yes—the “C” in ACB indicates the expanded keypad matrix with ±15 kV ESD protection on every line. This is the same robust protection found on the G1 ACB and ADC boards. If you’ve had static-related keypad failures, this board addresses that issue while also giving you high-resolution graphics.

Q: Will this board work in a Mark VIe system?

A: No. Mark VIe uses an Ethernet-based HMI architecture, not VME. This board is VME-based and will not physically fit in a Mark VIe rack. Attempting to insert it will damage the backplane. If you’re on Mark VIe, you need the IS220 series display controller.

Q: How do you test the G2ACB boards during QA?

A: We use a Mark VI test rack with a genuine GE high-resolution LCD panel and a 128-key keypad simulator. The test sequence includes: (1) VME bus handshake verification, (2) full display pattern test—all 256 colors, all pixels, at full resolution for 4 hours, (3) page transition speed test to verify graphics processor performance, (4) full 16×8 keypad matrix scan with ESD injection at ±15 kV on every line, and (5) 4-hour thermal soak at 55°C. We also run conducted EMI on the display cable during the entire test. If any pixel glitches or any keypress is missed, the board is rejected. This is our most rigorous test protocol.

Q: Does this board store any turbine configuration or alarm data?

A: No—the video RAM and graphics processor registers are volatile. All display configuration and alarm messages are loaded from the Mark VI main CPU during boot. Swapping this board does not affect logs, setpoints, or tuning parameters. No backup or restore required.

Q: What’s the warranty on this board?

A: 12 months replacement warranty from ship date. These boards are obsolete and no longer manufactured. If it fails under normal operating conditions (indoor environment, voltage within spec, temperature within 0–55°C) during the warranty period, we replace it from our remaining stock or issue a full refund. No restocking fees.

Q: How many G2ACB boards do you have? Should I buy spares?

A: We have fewer than 10 units remaining in our inventory. This is the rarest of all Mark VI HFPAG boards—it was a custom configuration, not a standard production variant. Most sites with G2 panels use the standard G2A (64 keys, no ESD). If you specifically need the 128-key matrix with ESD protection, your options are extremely limited. We strongly recommend buying a spare if your facility runs this board. Volume discounts are available for multiple units. When these are gone, there is no known alternative source.

Q: Can I mix this G2ACB board with older Mark VI CPU or I/O boards?

A: Yes—the G2ACB uses the standard Mark VI VME interface and is electrically compatible with all Mark VI CPU, communication, and I/O boards. No special backplane slots or firmware versions are required. However, the Mark VI CPU must have firmware that supports the G2 series graphics commands (generally v2.0 or higher). If you’re replacing a G1 board with a G2 board, you may need to update the CPU firmware. Check your system version before ordering.

Q: My display is blank after installing this board. What should I check?

A: First, verify that your LCD panel is compatible with the G2 series—not all panels support the higher resolution and timing. Second, check that you’re using the correct G2 display cable—G1 cables will not work. Third, verify that the Mark VI CPU firmware supports G2 graphics. If all of these are correct and the display remains blank, the board may have failed during shipping (rare, but possible). Contact us immediately and we’ll arrange a replacement or troubleshooting support. We test every board before shipping, but shipping damage can occur.

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