IS215UCCAH3: The Single-Slot Processor Board at the Core

The IS215UCCAH3 (IS215UCCAH3A) is the bare single-slot processor board of General Electric's UCCA CompactPCI controller — the computational engine that runs turbine application code in the Mark VI / Mark VIe control platform. Two independent industry references describe it as a single-slot CompactPCI board built around a 650 MHz Intel Celeron processor, running the QNX Neutrino real-time operating system. Where an M-series part number denotes a complete module assembly, this H3 is the processor card itself, offered here as new-surplus in factory packaging.

The compute engine and its interfaces

The board carries a watchdog timer and two PCI Mezzanine Card (PMC) sites, and provides an RJ-45 10BaseT/100BaseTX Ethernet port to the Unit Data Highway (UDH) for HMIs and other control equipment. In a full controller assembly the H3 is paired with flash and DRAM memory and the IS200EPMC mezzanine card, which adds Ethernet ports for the <R>, <S> and <T> I/O network (IONet) and the snoop hardware for IEEE 1588 time synchronization (aligning controllers and I/O packs to within about ±100 microseconds). Front-panel LEDs report power, reset, flash-disk activity and Ethernet status. Memory size and the exact processor step vary across the wider UCCA line, so match the full number when specifying a spare.

Before Replacing the Processor Board, Check These

A processor board is the last thing you should swap on suspicion. Rule out the common look-alikes first:

• Read the LEDs and boot behavior. A board that powers and attempts to run application code, but drops off the network, points at comms or configuration rather than the processor.
• Confirm rack power and the slot-1 rule. In the CompactPCI rack the leftmost board is the system board; if it is unpowered or ejected the whole rack stops — a classic false alarm.
• Restore the real-time clock. New-surplus and stored boards often ship with the CMOS battery jumper disconnected; reinstall it and set the clock via NTP or ToolboxST before drawing conclusions.
• Separate firmware from hardware. A failed or mismatched application download, or a ControlST/firmware version conflict, imitates a dead board.
• Check the UDH/IONet and I/O packs. A network or I/O-pack fault can make a healthy processor look at fault.

Once power, clock, configuration and network are proven, a factory-fresh H3 is a clean replacement.

H3 versus the M-series module: reading the number

IS215 is the Mark VI assembly family and GE lineage; UCCA is the CompactPCI controller function. The critical distinction is the character that follows: an H number such as H3 is the standalone processor board, whereas an M number (M03, M06 and so on) is the complete module assembly — board plus memory and EPMC. Ordering the wrong form is a common mistake, so confirm whether you need the bare card or the full module. Our GE Speedtronic Part Number Decoder details the scheme.

Where the UCCAH3 lives and what it talks to

The H3 is the heart of the UCCA controller and a sibling of the VME-based UCVx controllers (UCVB/UCVD/UCVE/UCVG). It works with the VCMI interface and the Mark VI I/O packs. Related parts are in the GE Mark VI IS200 Boards collection and the broader GE Speedtronic Turbine Control Boards range.

Send this with your quote request

• Full part number and suffix (IS215UCCAH3 / H3A) exactly as printed.
• A photo of the board label and revision.
• Turbine model, Mark VI or Mark VIe generation, and simplex or TMR (<R>/<S>/<T>) architecture.
• Whether you need the bare board or a full module, plus quantity, urgency and ControlST/ToolboxST version if known.

Request Your UCCAH3 Quote

This IS215UCCAH3 is offered as new-surplus in factory packaging with a one-year warranty. Send your details and we will respond with a quote within 24 hours. We ship worldwide DDP and accept purchase orders from qualified organizations. Use Request a Quote and include your label photo so we can confirm board-versus-module fit.

General Information about the Product
Part Number	IS215UCCAH3 Mark VI IS215
Description	IS215UCCAH3 By General Electric IS215UCCAH3A PCI CTRL Board Mark VI IS215 NSFP
Condition	newSurplusFactoryPackage With 1 Year Warranty.