Cabling – National Instruments 700 User Manual

Page 37

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Signal Connections

Chapter 3

DAQCard-700 User Manual

3-18

© National Instruments Corporation

Cabling

National Instruments currently offers two different cables for use with the DAQCard-700, the
PR-50-50F and the PR-50-50M. National Instruments also offers a cable termination accessory,
the CB-50, for use with the DAQCard-700. This kit includes a terminated, 50-conductor, flat
ribbon cable and a connector block. You can attach signal input and output wires to screw
terminals on the connector block and therefore, to the DAQCard-700 I/O connector.

The CB-50 is useful for the initial prototyping of an application or in situations in which the
DAQCard-700 interconnections are frequently changed. After you develop a final field wiring
scheme, however, you may want to develop your own cable. This section contains information
and guidelines for the design of custom cables.

The PR-50-50M is terminated in a 50-pin, male ribbon cable header connector. The mating
connector for this cable is a 50-position, polarized, ribbon socket connector with strain relief.
National Instruments uses a polarized (keyed) connector to prevent inadvertent upside-down
connections to the DAQCard-700. Recommended manufacturer part numbers for this mating
connector are as follows:

Electronic Products Division/3M (part number 3425-7650)

T&B/Ansley Corporation (part number 609-5041CE)

The PR-50-50F is terminated in a 50-pin, female ribbon cable socket connector. The mating
connector for this cable is a 50-position, polarized, ribbon socket header. National Instruments
uses a polarized (keyed) connector to prevent inadvertent upside-down connection to the
DAQCard-700. Recommended manufacturer part numbers for this mating connector are as
follows:

Electronic Products Division/3M (part number 3433-6302)

DuPont (part number 71912-150)

The following are the standard ribbon cables (50-conductor, 28 AWG, stranded) that work with
these connectors:

Electronic Products Division/3M (part number 3365/50)

T&B/Ansley Corporation (part number 171-50)

The PCMCIA I/O cable connector, like the card connector attached to the card itself, is a unique
custom-designed part. It is only available as part of the PR-50-50 cable assembly.

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