Description
The GE General Electric IS215VCMIH2C (widely known as the VCMI board) is a critical VME Bus Master Controller board engineered specifically for the Speedtronic Mark VI industrial turbine control system. This hardware module acts as the primary communications interface and bridge between local/expansion I/O boards, backup protection modules, triple-modular redundant (TMR) control units, the main processor module, and the system-wide IONet control network.
🧩 Product Datasheet Parameters
- Part Number: IS215VCMIH2C (Functional Revision C)
- Manufacturer: General Electric (GE)
- Series: Speedtronic Mark VI
- Product Type: VME Bus Master Controller / Communications Board (VCMI)
- Board Form Factor: Standard 6U VME format
- Processor Architecture: Built-in processing support (Pentium / 32-bit architecture)
- Memory: Dual-port memory configuration
- Communication Ports:
- Three IONet 10Base2 Ethernet ports (designated for R, S, and T channels)
- One RS-232C Serial Port (D-style plug connector)
- Diagnostic Indicators: Status, Fail, Run LEDs, numerical diagnostic LEDs (1, 2, 4, 8), and TX/RX/CD collision/transmission LEDs per IONet port
- Power Requirements: +5 VDC
- Operating Temperature Range: -30°C to +65°C
- Country of Origin: United States
📖 Product Instructions
- Ensure that all rack power supplies are completely powered down, de-energized, and locked out before attempting to install or extract the VCMIH2C board.
- Always wear an approved electrostatic discharge (ESD) wrist strap during handling to protect sensitive microchips and internal components from static damage.
- Carefully align the 6U module with the designated VME card rack slot guides and push evenly to ensure proper pin engagement with the backplane connectors.
- Fasten the front faceplate mounting screws tightly to maintain mechanical security, shield integrity, and proper chassis ground continuity.
- Restore system power and verify system initialization, data synchronization, and network communication status via the onboard LEDs and the ToolboxST configuration software suite.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary role of the IS215VCMIH2C board within the Mark VI architecture?
A: It serves as the VME bus master controller (VCMI), managing ID tracking for all cards in the rack, executing data exchange between I/O layers, and routing high-speed control data across the IONet network.
- Q: What do the front-panel IONet ports connect to?
A: The three 10Base2 Ethernet ports correspond directly to the redundant communication channels (R, S, and T) linking the control rack to local or distant I/O racks.
- Q: Why is board revision identification important for this module?
A: The “H2C” suffix designates a specific functional hardware revision level that alters base performance capabilities or interface layouts while maintaining form-fit compatibility within Mark VI environments.
🔍 Recommended GE Industrial Control Series & Models
- GE IS215UCCAH3A (Single-Slot Processor Board)
- GE IS215UCVEH1A (VME Control Processor Board)
- GE IS215UCVDH2AA (Mark VI Printed Circuit Board)
- GE IS215ISBBH2A (Splitter Communication Switch Board)
- GE IS215MACCH3A (Multiple Application Converter Board)
- GE IS215ACLAH1AL (Application Control Layer Module)
- GE IS200DSPCH1A (DSP Control Board)
- GE IS200EPCCM1AED (Processor Board)
- GE IS200STAIH1A (Analog Input Board)
- GE IS200TURCH1A (Turbine Control Board)
