Description
- Brand: GE General Electric
- Full Model Number: IS215UCVGH1A
- Alternate Part Number: VMIVME-7666-111000
- System: GE Mark VI Speedtronic
- Lifecycle Status: Discontinued by manufacturer; legacy support application
- Core Function: UCVG single-slot VME controller / system processor
- Processor: Intel Ultra Low Voltage Celeron 650 MHz
- Memory: 128 MB SDRAM + 128 MB Flash
- Network: 2 × 10BaseT/100BaseTX Ethernet ports
- Power: +5 VDC, 4 A typical, 5.4 A maximum
- Form Factor: 6U single-slot VME
- Weight: Approximately 5 lb / 2.27 kg according to one published specification; other listings report lower board-only weights, so verify shipping weight against the actual packing list
- Stock & Condition: Availability and exact condition to be confirmed against the physical inventory lot
- Shipping: Emergency dispatch subject to stock confirmation and carrier cutoff
Obsolescence & Supply Chain Deep Dive
A Mark VI controller failure can turn a routine maintenance event into a procurement problem when the original GE part is no longer supported through normal factory channels. GE IS215UCVGH1A is identified by a current industrial parts source as discontinued by the manufacturer, while secondary technical references identify it as a single-slot Mark VI UCVG controller using a 650 MHz Intel Celeron processor, 128 MB SDRAM, and 128 MB Flash. For plants maintaining legacy turbine controls, holding a correctly identified spare can reduce the exposure created by long sourcing cycles and uncertain used-market availability. The VMIVME-7666-111000 designation is also associated with this controller family in published product records.
The financial case is usually tied to avoided downtime rather than the board purchase price alone. Replacing a failed controller while retaining the existing Mark VI rack, I/O architecture, cabinet wiring, and application software can avoid the engineering, commissioning, testing, and shutdown costs associated with a wider control-system migration. Published technical documentation states that the IS215UCVGH1A installs in the VME rack and can replace earlier UCV controller versions without a backplane upgrade, although firmware and hardware-revision checks remain necessary before approval. For a plant with an established Mark VI configuration, a validated spare may therefore represent a materially lower short-term TCO than replacing an entire control platform—though the final economics depend on the site’s outage cost, engineering scope, and remaining support requirements.
Compatibility & Replacement Matrix
| Replacement Item | Assessment | Engineering / Procurement Guidance |
|---|---|---|
| Existing GE Mark VI UCV controller | Drop-in Replacement | The IS215UCVGH1A is documented as a single-slot UCV controller that installs in the existing VME rack. No VME backplane upgrade is generally required for replacement of an earlier UCV controller. |
| VME rack / backplane | No Hardware Modification Normally Required | Confirm rack type, slot position, connector condition, and board revision before installation. |
| Application configuration | Software Compatibility Check Required | Preserve and verify the existing Mark VI configuration before the maintenance event. Firmware revision must be checked before energizing the replacement controller. |
| Firmware | Potential Revision Dependency | Do not assume firmware equivalence solely from the base model number. Confirm the installed controller revision against the existing Mark VI application. |
| Mark V or unrelated legacy platforms | Not a General Replacement | This part is associated with the Mark VI platform; cross-platform substitution should not be approved from part-number similarity alone. |
| Estimated replacement labor | Typically 2–6 hours | Allow additional time for configuration backup, diagnostics, firmware verification, and post-replacement functional checks. Actual outage duration is site-specific. |
| Engineering change cost | Low when like-for-like | A like-for-like controller swap normally avoids cabinet redesign and extensive rewiring; documentation and validation work still apply. |
Field Traps — Watch Out
Firmware mismatch: A controller can be physically installable yet fail to start correctly if the firmware and existing Mark VI configuration are not aligned. Published guidance specifically warns buyers to verify firmware before replacement.
Hardware revision mismatch: IS215UCVGH1A listings can carry different revision and assembly markings. Verify the complete nameplate, assembly number, revision code, and existing application requirements before releasing the PO.
GE IS215UCVGH1A
Quality Assurance & Testing SOP
Before shipment, the controller should pass a controlled incoming and pre-dispatch inspection rather than a cosmetic-only review.
Identity verification
- Compare GE model marking against the purchase order
- Verify IS215UCVGH1A and associated VMIVME-7666-111000 identification
- Record assembly number, revision, serial or traceability markings where present
- Check PCB markings and connector arrangement against known reference documentation
- Conduct OEM anti-counterfeit visual inspection for altered labels, inconsistent markings, damaged tamper indicators, or non-matching board identifiers
Electrical and startup inspection
- Inspect PCB for corrosion, cracked components, contamination, bent pins, damaged connectors, and overheated areas
- Verify board condition under ESD-controlled handling
- Perform power-on self-test (POST) and check expected ERR/RUN/status LED behavior
- Confirm stable startup on an appropriate test rack or controlled bench setup
- Check Ethernet interface activity where test equipment and the required system environment are available
Functional verification
- Verify VME bus communication when a compatible test rack is available
- Check processor startup and memory recognition
- Verify available serial and Ethernet interfaces
- Conduct I/O load testing where the test configuration supports meaningful system-level validation
- Record test observations, fault codes, LED states, and revision details before release
For surplus or legacy inventory, the test report should distinguish visual inspection, electrical verification, and functional testing. That distinction matters during procurement review because a clean-looking board is not equivalent to a functionally verified controller.
Procurement & Lifecycle FAQ
Is the genuinely in stock, and what is the cutoff for emergency shipping?
Stock should be confirmed against the physical warehouse lot before the PO is released. Because this is a discontinued legacy controller, available quantities can change without factory replenishment. Emergency shipping cutoff depends on the destination, carrier, payment clearance, and the time the stock confirmation is completed.
How do you verify the condition and authenticity of an obsolete or surplus ?
The recommended acceptance process combines model-number verification, assembly and revision inspection, PCB condition review, OEM anti-counterfeit visual inspection, and functional testing where a compatible Mark VI/VME test environment is available. The quotation should state the exact condition of the supplied lot rather than relying on the model number alone.
Are there firmware compatibility issues engineers should review before issuing the PO?
Yes. Firmware should be checked as part of the replacement approval. A published technical reference specifically advises verifying the Mark VI firmware before replacement, and hardware revision information should also be compared with the existing controller.
Can replace an existing UCV controller without changing the VME backplane?
Published Mark VI references indicate that the is a single-slot VME controller and can replace earlier UCV controllers without a backplane upgrade. The site-specific rack configuration, firmware, revision, and application requirements must still be verified before installation.
What warranty and return terms should be included in the PO?
The commercial offer should state the exact warranty period, covered failure conditions, inspection window, and return authorization procedure for the specific unit supplied. For discontinued equipment, procurement teams should also request the tested condition, serial or traceability information available, and any test report before final acceptance.
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