Description

The SST-PFB3-VME-2 is a specialized Power Filter and Backplane board manufactured by SST (Systems & Software Technologies, Inc., formerly part of SBS Technologies), designed specifically for robust VMEbus embedded computer systems. This critical component acts as the central power distribution and conditioning unit within a VME chassis, responsible for receiving raw input power from an external source, filtering it to remove noise and transients, and then distributing clean, stable DC power to the entire VME backplane and its installed processor, I/O, and communication cards. The core function of the SST SST-PFB3-VME-2 is to ensure the integrity of the power delivered to every slot, which is a fundamental prerequisite for the reliable operation of the entire computing system. By providing superior power conditioning, it prevents system resets, data corruption, and hardware damage that can be caused by electrical noise on the power lines.

As a vital part of the system infrastructure, the SST-PFB3-VME-2 is typically installed at one end of the VME card cage, often integrating directly with the backplane. Its design is optimized to handle the collective power demands of a fully populated chassis. The value of the SST SST-PFB3-VME-2 lies in its ability to enhance overall system mean time between failures (MTBF) by creating a stable electrical environment, which is absolutely essential for VME systems deployed in mission-critical, industrial, and military applications where downtime is not an option. It is the unsung hero that guarantees the computational heart of the system keeps beating without interruption.

SST-PFB3-VME-2 SST

Technical Specifications

Main Features and Advantages

Superior Power Conditioning and Filtering: The primary advantage of the SST-PFB3-VME-2 is its integrated filtering circuitry. It employs a combination of inductors (L) and capacitors (C) to form low-pass filter networks that effectively attenuate high-frequency noise and voltage transients originating from the external power supply or generated by other cards within the system. This clean power delivery is critical for the stable operation of sensitive digital logic and analog circuits on the VME processor and I/O cards, ensuring data integrity and reliable computational performance for the entire system relying on the SST-PFB3-VME-2.

Robust Power Distribution and System Monitoring: The SST SST-PFB3-VME-2 is engineered to handle the substantial current demands of a fully loaded VME chassis. It features robust power planes and connectors to distribute the +5V, +3.3V, and +/-12V supplies with minimal voltage drop across the backplane. Furthermore, it typically includes a “Power Good” monitoring circuit and a visual LED indicator. This provides immediate, at-a-glance confirmation that the input power is within specification and that the SST-PFB3-VME-2 is functioning correctly, a crucial feature for rapid system diagnostics and maintenance.

Seamless VMEbus Integration and Reliability: Designed as a native VMEbus component, the SST-PFB3-VME-2 guarantees full electrical and mechanical compatibility with standard VME card cages and backplanes. Its single-slot 6U form factor allows for easy integration into any compliant chassis. The board’s construction and component selection are aimed at achieving high reliability and long service life, making the SST SST-PFB3-VME-2 a cornerstone for building dependable embedded computing systems that must operate continuously in demanding environments.

Application Field

The SST-PFB3-VME-2 is deployed in any industry that relies on the robustness and high performance of VMEbus-based embedded computing. In industrial automation, it is found at the core of real-time machine control systems, coordinating complex manufacturing processes where a power glitch could lead to production halts or equipment damage. Its reliability makes the SST SST-PFB3-VME-2 a key component in these critical control platforms.

Within the defense and aerospace sectors, the SST-PFB3-VME-2 is used in radar systems, military vehicle computing, and avionics test equipment, where system stability and data integrity are paramount. It is also prevalent in telecommunications infrastructure, such as in base station controllers and network switching equipment that requires 24/7 operation. Furthermore, the SST-PFB3-VME-2 serves in scientific and medical instrumentation, including particle accelerator controls and imaging systems, where a stable power foundation is necessary to ensure precise measurements and accurate data acquisition. Any application leveraging the VME architecture for its determinism and ruggedness will benefit from the foundational support provided by this power filter board.

Related Products

SST-PFB2-VME: A likely predecessor or variant of the power filter board with potentially different filtering or power handling capabilities.

SST-XXX CPU Boards (e.g., SST-PM- ** series): The single-board computers that plug into the VME chassis and are powered by the SST-PFB3-VME-2.

SST-XXX I/O Boards: Various digital and analog I/O cards from SST that rely on the clean power provided by the SST-PFB3-VME-2.

VME Chassis/Enclosure: The physical card cage and enclosure that houses the SST SST-PFB3-VME-2 and all other VME modules.

VME System Power Supply: The external, bulk power supply unit that provides the raw input power to the SST-PFB3-VME-2 for conditioning and distribution.

SST-PFB3-VME-2 SST

Installation and Maintenance

Pre-installation preparation: Before installing the SST-PFB3-VME-2, ensure the VME chassis is completely powered down and disconnected from all power sources. Verify that the external system power supply voltage and current ratings are compatible with the SST SST-PFB3-VME-2 and the intended card load. Physically inspect the board for any signs of damage during transport and ensure the VME backplane connectors are clean and undamaged.

Maintenance recommendations: Maintenance for the SST-PFB3-VME-2 is primarily preventative. Periodically check the “Power Good” LED upon system startup to confirm normal operation. Ensure the board and the surrounding area within the chassis are free from excessive dust buildup, which can impede cooling. If system instability related to power is suspected, the SST-PFB3-VME-2 should be one of the first components to be inspected and potentially replaced. Always use proper ESD (electrostatic discharge) precautions when handling the board.