The IS215UCCAE03 Control Board in the Mark VI System

The IS215UCCAE03 (IS215UCCAE03A) is a General Electric UCCx-series controller from the Mark VI / IS200 generation. The UCCA is GE's CompactPCI (CPCI) turbine controller — a single-board-computer design that serves as the compute engine running turbine application code, and an alternative to the VME-based UCVx controllers. It runs the QNX Neutrino real-time operating system and communicates over Ethernet with the operator and I/O layers of the control system. The E03 is one of several assembly configurations GE produced within the UCCA line.

CompactPCI compute engine, QNX Neutrino, and the UDH

At the heart of the UCCA is an Intel x86-class single-board computer with a watchdog timer and two PCI Mezzanine Card (PMC) sites. It provides an RJ-45 10BaseT/100BaseTX Ethernet connection to the Unit Data Highway (UDH) — the network that carries data to the HMIs and other control equipment — along with Ethernet links for the <R>, <S> and <T> I/O network (IONet) and an RS-232C setup port. Time synchronization across the IONet uses the IEEE 1588 protocol to align controllers and I/O packs to within roughly ±100 microseconds. As with the rest of the family, the specific processor and memory depend on the build, so we do not quote a fixed clock speed — the label on your board is the authority.

Is It the UCCA — or Something Upstream? Diagnose First

Controllers are expensive to swap on a hunch, and a "dead" UCCA is frequently a symptom of its surroundings. Check these before you buy:

• Interrogate the LEDs. Power, reset, flash-disk and Ethernet-status indicators separate a genuinely failed board from a network or download problem.
• Confirm rack power and slot position. In the CompactPCI rack the leftmost slot holds the system board; pulling or de-powering it stops the other controllers, which can look like multiple failures.
• Reset the real-time clock. A board out of storage may have its CMOS battery jumper open; reinstate it and set the clock (NTP or ToolboxST) before judging the hardware.
• Rule out configuration. Firmware/ControlST version mismatches, a partial application download, or IONet addressing errors mimic hardware failure.
• Test the network path and I/O packs. A UDH or IONet fault, or a failed I/O pack, can strand a perfectly good controller.

When rack power, clock, configuration and network all check out, the E03 is a justified replacement.

Decoding IS215UCCAE03 / E03A

IS215 denotes the Mark VI assembly family and GE lineage, and UCCA is the CompactPCI controller function. The character and number after the acronym describe the specific assembly and configuration: an H number is the bare single-slot processor board, an M number is a full module assembly, and this E03 is its own build within the line. Because these forms are not freely interchangeable, match the complete string — including the trailing revision letter — to your installation. The GE Speedtronic Part Number Decoder lays out each field.

Sibling boards and cross-generation notes

The UCCA sits alongside the VME UCVx controllers (UCVB/UCVD/UCVE/UCVG) and shares the system with the VCMI interface and Mark VI I/O packs; the same UCCA compute engine also underpins the later Mark VIe. See the GE Mark VI IS200 Boards collection and the wider GE Speedtronic Turbine Control Boards catalog for related parts.

Quote request checklist

• Full part number and suffix (IS215UCCAE03 / E03A) as printed on the label.
• A photo of the module label and revision.
• Turbine model, Mark VI/VIe generation, and simplex or TMR architecture.
• ControlST/ToolboxST version if known, quantity, and lead-time needs.

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General Information about the Product
Part Number	IS215UCCAE03 Mark VI IS200
Description	IS215UCCAE03 By GE IS215UCCAE03A Control Board Mark VI IS200
Condition	used Excellent condition, 1 Year warranty.