Function and Location of the IS200BPPBH2BEB

The IS200BPPBH2BEB belongs to GE's BPPB family, commonly marketed as an Analog I/O Processor Board but functionally best described as a backplane power and processor interface board. It steps a +28 VDC nominal supply down to the regulated +5 VDC and ±15 VDC rails its host I/O pack needs, and it moves data between that pack's processor and the rest of the Mark VI VME rack across the backplane. This is a daughterboard, not a rack card in its own right — it's screwed to the motherboard inside a larger I/O pack (BPPB has been used across several Mark VI pack types) using four standoffs into brass-plated corner holes, with three shaped edges to clear other components. In TMR systems, three of these processor boards — one per R, S, and T channel — run the turbine application software linking the pack to the rest of the control system.

Hardware on the board includes two LEDs along one edge, two connectors of different sizes, two phone jacks, an inductor coil, a range of capacitor types, several ICs and transistors, and a memory chip near the board's center, with each component individually labeled by reference designator. An onboard temperature sensor tracks conditions across a wide rated operating range and can contribute to system alarms. It's worth repeating because it changes how you troubleshoot: the BPPB never touches your field wiring directly. That connection is made through the pack's own analog front end and the terminal board it's wired to.

Don't Assume the Pack Fault Is This Board

Before ordering a replacement processor board, work through these checks:

• Look at the rack as a whole. If multiple I/O packs are alarming together, the +28 VDC supply or its distribution is a more likely cause than several coincidental board failures.
• Check the instrument and wiring on the field side of the pack. A failed transmitter, broken RTD lead, or loose terminal can produce symptoms that look exactly like a pack fault, without the BPPB being involved at all.
• Verify the pack is properly seated in the backplane and that the cable to its terminal board is intact and fully connected.
• Keep in mind the BPPB shares its housing with other circuitry inside the pack — confirming which specific board failed sometimes takes a physical inspection rather than an assumption.

Once shared power, field wiring, and cable connections check out, replacing this board is the appropriate next step.

Understanding the IS200BPPBH2BEB Suffix

IS200 is the platform prefix, BPPB is the function code, and H2BEB is the group and revision — H2B for the group/generation, EB for this particular hardware revision. This catalog stocks several other H2B BPPB boards with different trailing letters, and those differences are genuine, so always order against the complete part number. See our GE Speedtronic Part Number Decoder for a full explanation of how these strings are built.

Related Boards

BPPB processor boards have been used inside multiple Mark VI I/O pack designs, which explains why the same board sometimes appears under slightly different descriptive names. Later Mark VIe hardware shifted new I/O packs to a BPPC-based processor design, which should be treated as a different generation rather than a guaranteed substitute. If you're also supporting older Mark IV/Mark V systems, see our Mark V vs Mark VI: DS200 to IS200 guide and GE Mark V DS200 Boards Explained article. Browse the rest of this family in our GE Mark VI IS200 Boards collection or the wider GE Speedtronic Turbine Control Boards collection.

What to Send With Your Quote Request

• Full part number with suffix: IS200BPPBH2BEB
• 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 IS200BPPBH2BEB is listed in used condition, cleaned and tested, with a 1-year warranty (see table below). Every order is quoted directly rather than priced online — submit a Request a Quote and expect a response within 24 hours. We ship worldwide DDP, accept purchase orders, and support both planned outages and urgent breakdown orders.

General Information about the Product
Part Number	IS200BPPBH2B Mark VI IS200
Description	IS200BPPBH2B By General Electric IS200BPPBH2BEB Analog I/O Processor Board
Condition	used Cleaned and Tested. With 1 Year Warranty