DBM-25P-W

D-Sub Connectors

The D-Sub connector is a type of electrical connector used for computer serial and parallel ports, as well as video output interfaces. D-sub connectors are two-port connectors that consist of a male-female parallelogram shaped housing with individual female contacts sealed within. One of the two ports features parallel female contacts for signal connections, while the other port has a circular plug with a male contact pin. This type of connector is commonly used in connection to device port such as printers, monitors, and keyboards.

The D-Sub connector is made up of a dielectric substrate, which is a high-grade thermoplastic material and tightly bonded to the contact surfaces to provide a secure connection.

DBM-25P-W Application Field and Working Principle

DBM-25P-W is a D-Sub differential pair interconnect, which is a two-port, 25-pole, multi-purpose connector widely used in electrical, electronic, and telecommunication applications. The connector is typically used to provide signal and power interfacing between different pieces of equipment. It is often used for connections between computers, modems, routers, switches, and telecommunication devices. The connector is suitable for both indoor and outdoor environments, and it is resistant to harsh physical and thermal conditions.

The ConnX DBM-25P-W consists of two individual connectors: a male and female connector. The male connector has a 25-pin arrangement, while the corresponding female connector has a 27-pin configuration. Both connectors have sockets that are soldered to a board, with the male connector providing power and the female connector providing signal connections. There are four versions of the connector - 9 pins, 15 pins, 25 pins, and combination versions. The connector can be used for applications with voltage and current requirements up to 60 volts DC and 10 amps, respectively.

The working principle of the DBM-25P-W D-Sub differential pair connector is based on the differential arrangement of the contacts. The contacts are electrically connected to each other through dielectric materials, such as an insulator, and are insulated from outside materials. This means that air is utilized as the insulator between the contacts and any other conductive material. The contacts are then separated by a specific gap and connected to the outer contacts. The electrical current is then passed through the contacts and the outer connector.

The purpose of the differential arrangement is to create a “balanced” circuit, which eliminates the need for equal length transmission line segments. This not only reduces the total number of wires, but also reduces interference caused by noise. As a result, signals can be transmitted over much longer distances with major effects on signal integrity and accuracy.

In summary, the DBM-25P-W is a versatile two-port connector that offers multiple connection options and is suitable for a wide range of applications. It features a wide range of contact configurations and can be used for both indoor and outdoor environments. The working principle of the connector is based on the differential arrangement of the contacts, which allow for improved signal integrity and accuracy over longer transmission distances.