GE IS200VCMIH2CAA | Mark VI VME Bus Master Controller

• Model & Brand: GE General Electric IS200VCMIH2CAA
• Series: Mark VI Speedtronic
• Functional Acronym: VCMI
• Part Type: VME Communication Interface / VME Bus Master Controller Board
• Primary Function: VME backplane bus management, controller-to-I/O communication, and IONet interface
• Processor: Texas Instruments TMS320C32 32-bit DSP
• Dual-Port Memory: 32 KB
• IONet Interfaces: 3 × 10Base2 coaxial Ethernet ports
• Service Interface: RS-232 serial port
• Typical Power Requirement: +5 VDC, approximately 6 A
• Front Panel: 3 IONet BNC connectors, RS-232 port, reset control, status LEDs
• Physical Dimensions: Approximately 2 × 18.6 × 26.1 cm reported by an independent inventory source
• Estimated Shipping Weight: Approximately 0.32–0.55 kg net; confirm the actual packed weight before freight booking
• Mounting: Mark VI full-size VME rack
• What’s in the Box: IS200VCMIH2CAA board and ESD protective packaging; coaxial cables, serial cable, mounting hardware, and manuals only when expressly included on the PO
• Handling Class: ESD-sensitive communications/control PCB; protect BNC connectors, VME contacts, and front-panel hardware

Current technical references identify IS200VCMIH2CAA as a Mark VI VME Bus Master Communication Controller Board. The H2 configuration is associated with IS215VCMIH2CA and uses a TMS320C32 processor, 32 KB dual-port memory, three IONet 10Base2 ports, and an RS-232 service interface.

Product Introduction

Architecture Hook

The IS200VCMIH2CAA sits in the Mark VI full-size VME rack and functions as a communications and bus-management controller rather than a conventional field I/O card. It manages data exchange across the VME backplane, interfaces with the turbine control network through three IONet 10Base2 ports, and provides an RS-232 service connection for local diagnostics and maintenance.

From an asset-control perspective, the complete IS200VCMIH2CAA / IS215VCMIH2CA identity should be retained. This distinction matters because closely related VCMI variants exist for different Mark VI rack architectures, and a physically similar communication board is not automatically a valid substitute (especially when the cabinet still uses legacy coaxial IONet wiring).

Core Technical Specifications

*Some supplier records mix general Mark VI/VCMI database fields with board-specific information. Use the physical nameplate and approved GE documentation as the final engineering basis for any value marked as supplier-reported.

GE IS200VCMIH2CAA

🚨 Global Compliance & Industry Certifications

• CE Mark: Do not assign standalone CE conformity to the bare PCB without a declaration covering the applicable Mark VI system.
• UL / cUL: No exact standalone UL/cUL certificate for this specific H2CAA revision was verified from the technical records reviewed.
• ATEX / IECEx: No standalone ATEX or IECEx certificate was verified for the individual VCMI board. Any hazardous-area claim must be tied to the complete certified turbine-control installation.
• Marine Approvals: No exact DNV or ABS certificate was verified for this board.
• EMC: The three 10Base2 IONet ports and RS-232 service port make grounding, shielding, coaxial cable condition, and connector integrity important for signal quality.
• Functional Safety: Do not assign a standalone SIL rating to the VCMI. Its safety relevance depends on the complete Mark VI application and validated turbine-control architecture.

Verify specific lot certifications with OEM.

For audit records, certification evidence should identify the exact hardware or complete equipment configuration. A generic Mark VI certificate should not automatically be attached to every loose VCMI board.

🚨 Long-Term Storage & Asset Preservation Guide

Keep the VCMI in an ESD shielding bag. The VME edge connector, BNC interfaces, RS-232 port, and processor circuitry are all vulnerable to improper handling. Use rigid separators when storing several boards together.

Keep warehouse humidity below 60% RH where practical. Oxidation of VME contacts and BNC interfaces can produce intermittent communication problems that appear only after installation. Avoid condensation cycles, high-humidity cabinets, and storage near washdown or steam sources.

Protect the 10Base2 BNC connectors. Install protective caps during storage and do not allow the center contacts or threaded shells to contact bare metal surfaces. Cable connectors should be stored separately and clearly identified by network port.

Preserve controller configuration data. Record the board revision, serial number, firmware information, VME slot, IONet port assignments, and Mark VI cabinet identifier. A spare that lacks its original network/configuration record is not necessarily deployment-ready.

Physical Installation Prerequisites

Install only in the appropriate GE Mark VI full-size VME rack. The board depends on the VME backplane for communications and power, so mechanical fit alone does not establish compatibility.

The reported physical envelope is approximately 20 × 186 × 261 mm, but the final cabinet drawing should use verified GE mechanical data or measurements from the actual board and rack assembly.

No verified GE-specific universal 50 mm clearance requirement was established for the VCMI. Maintain the original rack ventilation and service envelope, including sufficient space for the three coaxial BNC connections, RS-232 access, retaining hardware, and board extraction.

Grounding and bonding must follow the Mark VI cabinet design. Maintain proper separation between IONet coaxial cables and high-energy switching conductors where the installation design requires it.

Check the network architecture before replacement. The H2 VCMI uses three 10Base2 coaxial IONet ports, so do not substitute a newer Ethernet-interface variant without confirming the rack and network architecture.

Before removing the existing board, label the three IONet connections and RS-232 cable, record the VME slot, and capture any accessible firmware/configuration information. After installation, confirm communications on every required IONet segment rather than stopping at a successful power-up.

Buyer’s FAQ — Logistics & Compliance Focus

Q1. What HS tariff code should be used for GE ?
Do not assign a final HS classification from the model number alone. One independent supplier reports 8537101190, but the correct destination-country tariff code depends on customs interpretation of this dedicated turbine-control communications controller. Use a precise description such as “GE Mark VI VME Bus Master Communication Controller Board, ”, then have the destination-country broker validate the final classification.

Q2. What should be declared as Country of Origin?
Several current supplier records report USA as the country of origin, but that should not be treated as automatic proof for every historical unit. Obtain a COO declaration tied to the actual serialized board or shipment lot and retain it with the commercial invoice and packing list.

Q3. Should shipping insurance cover replacement value rather than the board’s physical weight?
Yes. Supplier records place the board at roughly 0.32–0.55 kg, but the economic exposure is determined by its role as the VME communication hub of a legacy Mark VI rack. Record serial number, condition, declared value, actual gross weight, package dimensions, and pre-shipment photographs before carrier handoff.

Q4. Does a New Original include the latest firmware pre-loaded?
Do not assume it does. The VCMI is a processor-based communication controller, and its front-panel RS-232 interface is used for local diagnostic and firmware-related service functions in the documented architecture. Before installation, compare the replacement’s hardware revision and accessible firmware information with the existing Mark VI controller configuration.

Q5. What should receiving inspection retain before releasing the board to controlled spare inventory?
Record , associated IS215VCMIH2CA, serial number, hardware revision, firmware information where accessible, BNC connector condition, VME connector condition, COO evidence, certification documentation where applicable, and actual package measurements. Also retain the original IONet port assignments and VME slot position with the serialized spare, because those details directly affect field replacement.