Description
The GE IS215VCMIH1B is a VCMI Communication Board / VME Communications Interface assembly designed for the GE Mark VI Speedtronic turbine control system. The full assembly part number IS215VCMIH1BB represents the B-rated functional revision and is used as a communication interface between Mark VI controllers, I/O boards, and the IONet system control network. The VCMI also functions as the VME bus master in control and I/O racks and manages identification information for installed boards and their associated terminal boards. The assembly uses a single-slot faceplate with Run, Fail, Status, Module, R/S/T, and TX/RX/CD diagnostic indicators, a reset pushbutton, serial interface, and an IONet 10Base2 network connection. The board is conformally coated and is intended for VME rack installation in Mark VI control equipment.
Product Datasheet
| Specification | Details |
|---|---|
| Brand | GE General Electric |
| Model | IS215VCMIH1B |
| Full Part Number | IS215VCMIH1BB |
| Series | Mark VI Speedtronic |
| Product Name | VCMI Communication Board / VME Communications Interface |
| Functional Acronym | VCMI |
| Product Type | VME Bus Master / Communication Interface |
| Main Function | Controller, I/O and IONet communication |
| IONet Interface | 1 IONet communication port |
| Serial Interface | 1 serial port |
| Processor | Texas Instruments TMS320C32 32-bit DSP |
| Memory | 256K × 32 SRAM; 512K × 8 Flash, as reported for this assembly |
| Diagnostics | Run, Fail, Status, Module, R/S/T and TX/RX/CD LEDs |
| Reset | Front-panel pushbutton |
| Mounting | VME rack, single-slot faceplate |
| PCB Coating | Conformal coating |
| Board Format | 6U VME board |
| Approx. Size | 33.0 × 17.8 cm; board width approximately 0.787 in |
| Country of Manufacture | USA |
| Product Status | Legacy / Obsolete |
| Condition | New / Surplus |
Key Features
- Designed for GE Mark VI Speedtronic turbine control systems
- VCMI communication interface between controllers and I/O boards
- Functions as the VME bus master in control and I/O racks
- Provides communication with the Mark VI IONet control network
- Manages board and terminal-board identification within the rack
- Single IONet port configuration
- Texas Instruments TMS320C32 processor
- Front-panel reset switch and multiple diagnostic LED groups
- Serial communication interface
- Conformally coated industrial PCB assembly
- 6U VME rack format
- Full assembly number: IS215VCMIH1BB
Common Questions & Answers
Q: What is the IS215VCMIH1B used for?
A: It serves as the VCMI communication interface and VME bus master for a GE Mark VI control system, connecting controllers, I/O boards, and IONet.
Q: What is the difference between IS215VCMIH1B and IS215VCMIH1BB?
A: IS215VCMIH1B identifies the base model, while IS215VCMIH1BB identifies the specific assembly with the B functional revision and B secondary revision designation.
Q: Does this board support IONet?
A: Yes. The VCMI provides an IONet interface for Mark VI system-level communication.
Q: How is the board installed?
A: It is designed for installation in a compatible GE Mark VI VME rack. Confirm rack compatibility and the exact assembly number before replacement.
Q: Does the board have built-in diagnostics?
A: Yes. The faceplate includes multiple LED groups for operating status and communication diagnostics, along with a reset pushbutton.
Troubleshooting & Safety
Before installation, isolate the equipment from hazardous power sources and follow the site lockout/tagout procedure. Verify the complete part number, revision, rack position, and system configuration before replacement. Inspect the VME connectors, faceplate, IONet connection, and PCB for contamination, bent contacts, corrosion, or physical damage. After installation, check the Run, Fail, Status, Module, and communication LEDs and confirm proper IONet communication. Do not remove or install the assembly while the rack is energized unless the GE system documentation specifically permits that procedure.
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