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D-Sub Connectors: DAMC7H2SNA197 Application Field and Working Principle

D-Sub Connectors, or D-subminiature type connectors, are a family of electrical connectors used widely in analog and data communications applications. The DAMC7H2SNA197, a part of this family, is an I/O connector designed for connection to an external laser printer or plotter.

Overview of the DAMC7H2SNA197

The DAMC7H2SNA197 has a standard D-Sub form factor. Its unique characteristics include:

• Nine-pin configuration, from 7 to 55 positions
• Through-hole or right-angle right-hand mount
• Low profile (3/8-inch tall)
• Easily conforms to modified EIA-364 standards
• Durable nickel-plated bronze contacts and brass shell

Application Fields

The DAMC7H2SNA197 is suitable for most generic and specialized I/O connections. It is designed for use with external laser printers and plotters, as well as other standard digital I/O applications. The connector is particularly suitable in applications where the printer or plotter needs to be remotely located. Its low profile makes it an ideal choice for custom PC backplanes and front panel s.

Working Principle

The DAMC7H2SNA197 is a metal-shell electrical connector. Its contacts provide electrical continuity between a printed circuit board (PCB) and an external laser printer. The design of the connector achieves access to the printer or plotter through the use of pins. Each contact is made from a roll crimp contact, terminal, or socket strip and provides a reliable connection between the external device and the PCB. The number of contacts and size of the connector can vary based on the application requirements.

The contacts of the connector are made of silver or nickel-plated bronze. The shell is made of either iron or steel. The connector can also be furnished with a ground spring or additional wire strain relief. The wires are attached to the connector with a soldering process.

Conclusion

The DAMC7H2SNA197 is a D-Sub Connector designed for remote-attached laser printer and plotter applications. It has a small form factor with nine pins. The connector is constructed of nickel-plated bronze contacts and a brass shell. It is a reliable connection for I/O applications and can be modified to meet customer specifications.

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