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DB25 Connector

DB25 Connector

A DB25 connector is an established parallel port connection in computers often referred to as a printer port. These 25-pin d-subs offer rugged connections of peripherals and have excellent shock and vibration resistance. Vertical or right-angle orientations combined with various mounting options make these d-subs and excellent choice in industrial applications.



 

DB25 CONNECTOR | EDAC

What is a db25 connector?

The DB25 connector is an analog socket, with 25 pins, from the D-Subminiatures (D-Sub) connector family. The prefix ā€œDā€ represents the D-shape of the connector shell. The DB25 connector is mainly used in serial and parallel ports, allowing asynchronous data transmission according to the RS-232 standard (RS-232C). Note that there are DB9-DB25 adapters that easily convert a DB9 socket to DB25 and vice versa.

db25 connector pins


DB25 ENGINEERING OPTION

There are three types of cable end D-sub connectors. They are differentiated by the method used to attach the wires to the contacts: soldering, insulation displacement or crimping.

1. DB25 DSUB CONNECTOR WITH SOLDER CONTACTS

The solder contacts have a cavity into which the stripped and tinned wire is inserted and then soldered.

db25 connector with soldered contactsinsulation of all the wires simultaneously.

db25 connecto with insulation displacement contacts (IDC or I.D.C)

3. DB25 DSUB CONNECTOR WITH CRIMPED CONTACTS

The crimp contacts are wired by inserting a stripped end of wire into a cavity at the back of the contact. The cavity is then crimped using a crimping tool. The contact is then inserted into the connector. Pins can be removed later with a tool inserted into the back of the connector. This "rear disconnect" is useful when the pins on the device are damaged.

db25 connector with straight termination

RIGHT-ANGLE TERMINATION -

DB25 Connector with right-angle termination

DB25 D-SUB CONNECTOR BACKSHELLS

D-Sub connector backshells enclose the junction between the conductors in a cable and the contacts in the connector assembly. These are available in plastic for standard applications, or metal for industrial applications.

DB25 Connector backshell

Other commonly known D-subs are DB9 connectors and DB15 connectors.

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