VMIC ASSY 12149 VMEbus Single Board Computer

The VMIC ASSY 12149 is a high-performance single-board computer designed for the VMEbus architecture, serving as the central processing unit in industrial automation, test systems, and mission-critical applications. This module provides deterministic real-time control capabilities essential for demanding operational environments.

VMEbus Compliance

This module complies with the VME64 bus standard, supporting A16, A24, and A32 address spaces along with D08, D16, and D32 data transfers. As a VMEbus master, it controls communication with other modules in the VME chassis, including analog and digital I/O cards, motion controllers, and communication interfaces. The board conforms to the 6U Eurocard form factor for standardized integration.

Connectivity and Interfaces

The ASSY 12149 provides comprehensive I/O connectivity for system integration. A 10BaseT Ethernet port enables network connectivity for remote monitoring and control. Two RS-232/422/485 serial ports support communication with peripheral devices and legacy equipment. Front panel status LEDs provide visual indication of power, activity, and fault conditions.

• Processor: Motorola MC68040 32-bit RISC (25-50 MHz)

• System Memory: 32 MB DRAM, expandable configuration

• Firmware Storage: 4 MB Flash/EPROM memory

• Network Interface: 10BaseT Ethernet (AUI or RJ-45)

• Serial Ports: 2x RS-232/422/485

• Bus Compliance: VME64, IEEE 1014 standard

• Form Factor: 6U VME single-board

Real-Time Operating System Support

The ASSY 12149 is designed to run a variety of real-time operating systems including VRTX, VRTXsa, LynxOS, pSOS, and VxWorks. These RTOS environments provide deterministic task scheduling and low-latency interrupt handling, essential for applications requiring precise timing and predictable behavior. The hardware watchdog timer ensures system reliability by automatically resetting the board in the event of software malfunction.

Reliability and Environmental Specifications

Built for continuous operation in industrial environments, the ASSY 12149 supports operating temperatures from 0°C to +60°C for commercial variants, with extended temperature versions available for military applications. The module meets MIL-STD-810 standards for vibration and shock resistance, ensuring reliable performance in deployed systems.