MicroTCA
MicroTCA is a modular, open standard architecture for building high-performance, rugged, and cost-effective embedded systems. It is based on the Advanced Telecommunications Computing Architecture (ATCA) standard but scaled down in size and complexity, making it suitable for a wider range of applications, particularly in telecommunications, industrial automation, transportation, and medical imaging.
MicroTCA leverages the PCI Express (PCIe) interconnect technology for high-speed data transfer between modules within a chassis. The architecture defines a set of hardware specifications for modules, backplanes, and chassis, ensuring interoperability between different vendors.
Key features of MicroTCA include:
- Modularity: Systems are built from individual modules (Advanced Mezzanine Cards or AMCs) that plug into a backplane. This allows for flexible configuration and easy upgrades or repairs.
- High Performance: Utilizes PCIe for high-speed data transfer between modules, enabling demanding applications.
- Ruggedization: Designed for harsh environments, with options for extended temperature ranges, vibration resistance, and shock resistance.
- Redundancy: Supports redundant power supplies, cooling, and other critical components for high availability.
- Management: Includes a comprehensive management architecture for remote monitoring and control of the system.
- Scalability: Systems can be scaled by adding or removing modules as needed.
MicroTCA systems typically consist of the following components:
- MicroTCA Carrier Hub (MCH): Provides central management, switching, and connectivity functions.
- Advanced Mezzanine Cards (AMCs): Functional modules that perform specific tasks, such as processing, storage, or I/O.
- Power Modules (PMs): Supply power to the system.
- Cooling Units: Dissipate heat generated by the modules.
- Backplane: Connects all the modules together and provides power and communication paths.
- Chassis: Enclosure that houses all the components.
MicroTCA is governed by the PCI Industrial Computer Manufacturers Group (PICMG). The standard has evolved over time, with different revisions and variants addressing specific application requirements. Variations include MicroTCA.0, MicroTCA.1 (ruggedized), and MicroTCA.4 (with extensions for precision timing).