The types of connectors like D-subminiature are named because of their shapes. You can commonly see them on the wires of computers, televisions, stereos, and more. Their metal shield has gotten them these names, and they are some of the minuscule plugs that you can use on your systems.
You may notice them usually because they have two parallel rows of sockets or pins. The D-shaped shields are made from metal, and they ensure correct orientation, mechanical supports, and they can screen some of the electromagnetic interference that may come from the systems.
The experts have provided genders in the connectors. The two D-subs may be classified as male or female. Those with the pin contacts are called the male plugs, and the sockets are female connectors. The shields are tightly fitted into the panels where they are mounted. The connectors may contain 4 to 40 jackscrews, and they can offer strain relief from mechanical connectors depending on the jackscrews.
On many occasions, some nuts can be found at the end, where they are expected to be connected to other cables. The screened ones are used when the shields are connected to a computer’s screens and the overall cable system.
What to Know about the D-Series?
The D-series are series of connectors that Cannon formalized in the 1950s. The company was an ITT interconnect solution that was responsible for manufacturing plugs. As part of its effort to put a number in the D-series followed by the letters of the alphabet, it put a name on a series of plugs that they have manufactured so that clients can better recognize them whenever they are buying one.
The series has A, B, C, D, and E that denote the shells’ size. It’s then followed by the number of sockets or pins, followed by the S (socket) and P (pins or plugs) that denote the corresponding gender of the parts. Know more about sockets at this link here.
Some of the shell sizes may usually correspond to the specific number of sockets or pins. An example is E with 9, D with 50, C with 37, B with 25, and A with 15. A DB-25 means that a D-subminiature has a 25-position contact for configuration with the same shell size. Usually, the rows for each connector are spaced about 326/3000 or 2.76 mm apart. The rows are spaced 2.84 mm apart, and the distance offsets them.
More Definitions to Know
D-subminiature connectors are families of sockets and plugs that are widely used by older PCs and communication devices. An excellent example of this is the VGA monitor interface that uses a 15-pin D-subminiature connector that comes in 50, 37, 25, 15, and 9 pins. The D-sub designations can be defined by the connectors’ physical and overall structure and not precisely their purposes.
Not Always DB
In the international standards, the letters of A up to E do not necessarily define those pins following the D. Although it’s so-called DB connectors, the only true meaning lies in the DB 25 because the letter B means 25 pins.
DB-25
The female DB-25 is usually used in many PCs and printer ports. The male ones are used in serial ports, and they are trendy. This is still widely used in RS-232 devices and communications. Learn more about RD-232 here: https://en.wikipedia.org/wiki/RS-232.
DE-9
The male DE-9 connector was used in many communication devices as well as COM1 PCs. They are the first ones that were used in serial ports. This is a socket that connects to an interface for data acquisition. They can be found in connecting peripherals, modems, and mouse and the old MACs use them for sprinters. They are known as RS-232 ports, and they have prolonged speeds, and they are superseded by USB on desktops.
Duration of the Connections
The ports can offer a wide range of styles like soldering for permanent needs or crimping, usually found inside the homes and temporary. Another type of connectors has ITT trademarks called micro-D or microminiature-D that are standard D, and you can almost see them in any technology used in space. These are the most compact connectors in the markets out there, and they are still available in many ethernet components and printers.
