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Backplane connectors are available in two sizes that meet the needs for different interconnect applications. Hard metric, or high performance, connectors provide a cost-effective solution for applications that require increased speed, higher data rates and/or higher pin counts. Standard backplane connectors are intended for use in applications that do not have the need for higher speeds and data rates.

The Hard Metric (HM) backplane connector is designed to meet the needs of applications for high reliability and high speed. It is typically used in telecommunications, computer, and other wireline and wireless communication applications. The HM backplane connector system uses different pin spacing compared to the traditional two-row pin spacing of the standard backplane connector. This spacing of pins provides improved signal and power integrity, as it eliminates most of the interconnect parasitics. The connector also features “active” types of contact designs, which help reduce signal and power disruption on the circuit board.

The standard backplane connector provides a lower cost solution that meets the requirements for applications that do not need the higher data rates and speeds. This backplane connector is designed to have a higher density of pins, which allows for better flexibility in pin spacing. It also provides more space between the pins, which helps reduce parasitics. The standard backplane connector is typically used in applications with lower data transmission speeds, such as those in voice and data systems.

The working principle of both the hard metric and standard backplane connectors is the same. They contain pins that connect two printed circuit boards (PCBs) together. The pins are then soldered onto the PCBs, which creates an electrical connection between the two boards. The connectors are designed to be able to handle different amounts of power, which are typically measured in amps, and can vary depending on the application.

The backplane connector has evolved over the years, with more robust designs for higher speeds and data rates. The increasing demand for higher performance telecommunications and computer industry applications has driven the need for the hard metric backplane connector, which can handle higher speeds and data rates than the standard backplane connector.

Hard metric and standard backplane connectors provide reliable and cost-effective solutions for various applications. Both connectors are widely used in the telecommunications, computer, and other wireline and wireless communication industry. The different pin spacing of the hard metric backplane connector makes it better suited for higher speed and data rate applications, while the standard backplane connector is suitable for voice and data systems.

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