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Backplane connectors are specialized for connecting computer devices within a system. There are different types of backplane connectors used in different application fields and each one has a different working principle.

A backplane is an electrical bus that carries power, data and control signals to the different modules of a computer system. The backplane consists of a series of conductors that are interconnected. The electrical bus can be either parallel or serial. Parallel allows the transmission of data in multiple paths at the same time, while serial requires the data to be transferred one bit at a time.

The most common types of backplane connector used in application fields include DIN41612, VITA 66.4, SPBT and MPBT. DIN41612 is an industry standard for backplanes, and is used for connections between modules in computers, such as keyboards, mice, and expansion cards. It supports both 2.54mm and 1.27mm pitch sockets and comes in various sizes and shapes. It is mainly used in telecommunications or aerospace applications.

VITA 66.4 is an optical/electrical backplane connector designed to provide high-speed transmission. It has two rows of nineteen SMT contacts on each side and requires an MT ferrules for fiber-connection. It is mainly used in high-speed, digital data transmission applications, such as high-speed computer networks and supercomputers.

SPBT is a parallel backplane connector designed to provide high-performance bus and power transmission. It consists of two rows of SMT contacts, and supports both 0.1” and 0.2” mounting height. It is mainly used in applications requiring high data rate and high performance.

MPBT is a high-speed parallel backplane connector designed for high speed and high power transmission. It consists of two rows of SMT contacts and supports a maximum of 40A power. It is mainly used in servers, network storage devices, networking applications and industrial control systems.

The working principle of a backplane connector depends on the type. Generally, it consists of two or more rows of SMT contacts which make electrical contact with the adjacent sockets. When a card is inserted into the backplane connector, the contacts make a connection and the data can be transferred between the modules.

In summary, backplane connectors are specialized components used for connecting computer devices within a system. The most common types are DIN41612, VITA 66.4, SPBT and MPBT. Each type has different characteristics and is used in different application fields. The working principle of a backplane connector is based on electrical connections between the contacts of a card and the sockets of the backplane.

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