Data Acquisition (DAQ) and Control from Microstar Laboratories

Knowledge Base: Connectors

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Q10088 DB25 connector for I/O

Tags: Help, quadrature inputs

Applies to: MSXB050, accessory boards with DB25 connector

I have a board with a DB25 connector for I/O. How should I connect to it?

Male (plug) DB25 connectors are used primarily for quadrature inputs on our quadrature decoder board. They are subminiature D connectors with 25 pins in two rows. They mate with female (receptable, socket) DB25 connectors on connecting cables.

Related Products and Pinout

  1. MSXB050 - Quadrature Decoder Board

    The male DB25 connector is used on the following models of the MSXB050 for quadrature inputs, where n denotes the package form:

    • MSXB050-01-C3n, MSXB050-01-E3M, MSXB050-01-K3Z - 4 quadrature inputs

    Figures 1a and 1b show the pinout of the male DB25 connector on the MSXB050, with the corresponding connections on the female connector on the cable.

Mating Hardware

The DB25 male connector is part number 747842-4 frmo AMP / Tyco. It mates with the following parts from AMP for a round cable:

  • D-connector - 2-745495-0
  • Shell - 1-747947-7 or 5748676-3
  • Crimp pins - 747741-1 for 22-26 AWG wires

The male connector mates with the followng part from AMP for a ribbon cable:

  • IDC DB25 female - 1658614-2


MSXB050 Manual

Model number suffix

Note: Information on this page was collected from multiple sources. If you have any concerns about the accuracy of the information provided here, check the hardware manuals for your specific products. Those manuals are the authoritative sources.