IS200BPPBH2BMD at a Glance

Ordering an IS200BPPBH2BMD is usually the right call when an I/O pack in a Mark VI VME rack has a confirmed power or backplane-communication fault — that's this board's job. As a BPPB-family board, it regulates a +28 VDC nominal supply down to the +5 VDC and ±15 VDC rails a Mark VI I/O pack needs, and it handles the processor-to-rack data exchange over the backplane. It's mounted inside the pack itself, secured to the host motherboard with four standoffs through brass-plated corner holes, with three edges shaped to clear surrounding components. The board carries two LEDs along one edge, two connectors of different sizes, two phone jacks, an inductor coil, various capacitor types, several ICs and transistors, and a memory chip near the center, all individually labeled with reference designators. Three of these boards typically run together in a TMR system, one per R, S, and T channel, each running the turbine application software for its channel, with an onboard temperature sensor supporting condition monitoring.

What matters most for troubleshooting is what this board doesn't do: it has no direct connection to field wiring. Transmitters, RTDs, and other sensors terminate on the pack's own front end and its terminal board, not on the BPPB.

Before You Order, Rule These Out

An alarm on the I/O pack doesn't automatically confirm a BPPB failure. Check the following first:

• Are other packs in the same rack section also alarming? If so, look at the shared +28 VDC supply and its distribution before replacing individual processor boards.
• Has the field device and wiring been checked? A bad transmitter or a loose terminal on the field side can produce a fault that looks exactly like a pack failure.
• Is the pack seated properly in the backplane, and is its cable to the terminal board intact? These are common, easily overlooked causes of intermittent faults.
• Has the specific failed board inside the pack been confirmed? The BPPB shares its housing with other circuitry, so don't assume it's the culprit without checking.

Once shared power, field wiring, and cabling are ruled out, this board is a reasonable and direct fix.

Reading the IS200BPPBH2BMD Suffix

IS200 is the platform prefix, BPPB the function code, and H2BMD the group and revision — H2B for the group/generation, MD for this specific revision. This collection stocks several other H2B-series BPPB boards with different trailing letters, each a genuine revision difference, so always order against the full part number. Our GE Speedtronic Part Number Decoder explains how the complete IS200 string is structured.

Related Boards

BPPB boards have shipped inside several different Mark VI I/O pack types, which is why the descriptive title attached to any given part number can vary. Later Mark VIe systems moved new I/O packs to a BPPC-based processor architecture; treat that as a separate generation rather than an automatic substitute for this board. If you're also maintaining older Mark IV/Mark V fleets, see our Mark V vs Mark VI: DS200 to IS200 guide and GE Mark V DS200 Boards Explained article. Browse the rest of the family in our GE Mark VI IS200 Boards collection or the wider GE Speedtronic Turbine Control Boards collection.

What to Include in Your Quote Request

• Full part number with suffix: IS200BPPBH2BMD
• Host I/O pack part number, if known
• Photo of the board or pack label
• Turbine/generator model and unit ID
• Planned outage or urgent need
• Quantity

Request a Quote

This IS200BPPBH2BMD is listed in used condition, cleaned and tested, with a 1-year warranty (see table below). We don't publish prices — every order gets a direct quote, typically within 24 hours. We ship worldwide DDP, accept purchase orders, and support both planned outages and urgent breakdown needs.

General Information about the Product
Part Number	IS200BPPBH2B Mark VI IS200
Description	IS200BPPBH2B By General Electric IS200BPPBH2BMD Analog I/O Processor Board
Condition	used Cleaned and Tested. With 1 Year Warranty