Over time the terms DB-9 and DE-9 have become synonymous and while technically incorrect as the 9 pin shell size is E, are now considered to be interchangeable terms used industry wide. The next letter is determined by the 5 shell sizes in accordance with pins (A, B, C, D, & E), which is then followed by the number of sockets or pins (9) housed within the connector shell. The prefix āDā represents the d-shaped connector shell of the d-subminiature connector. The DB9 connector, or more accurately the DE9 Connector, is an abbreviated version to reference the 9 pin d-sub connector. Contact us directly if your unique application requires a custom or semi-custom DB9 connector or DB9 cable assembly not currently offered in our standard product offering above. NorComp DB9 connectors are engineered with machined contacts for heavy-duty industry applications or stamped & formed contacts for applications requiring less mating cycles.
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