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371177A-01               

© Copyright 1993, 1994 National Instruments Corporation.  All rights reserved.

March 1993

 

 

 

 

 NATIONAL 

INSTRUMENTS

®

The Software is the Instrument

®

Installation Guide

                                                                             

SCXI-1345 Shielded Cable

This guide describes how to install the SCXI-1345 shielded cable with an adapter board between

an SCXI module and a data acquisition board.  In addition to the SCXI-1345 kit contents, you

will also need an SCXI chassis, an SCXI module, a computer, a multifunction I/O (MIO) board,

a small Phillips-head screwdriver, and a small flathead screwdriver.

Introduction

With the SCXI-1345 shielded cable, you can make a low-noise, long-distance connection

between your SCXI chassis and your MIO board.  You can use the SCXI-1345 with the

following MIO boards:

PC/XT, PC AT

Macintosh

AT-MIO-16

NB-MIO-16

AT-MIO-16F-5

NB-MIO-16X

AT-MIO-16X

The SCXI-1345 shielded cable consists of a 1, 2, 5, or 10 m round cable that has a 50-pin female

connector with a grounding strap at one end and a 68-pin female connector at the other end.

When plugged into the SCXI-1345 adapter board, the shielded cable brings the pinout of the

MIO board I/O connector to the SCXI module and to a breakout connector you can use with

other SCXI accessories, such as the SCXI-1180 and the SCXI-1351.

What Your Kit Should Contain

The SCXI-1345 shielded cable kit is available in four cable sizes:  1, 2, 5, or 10 m.

In addition, each version of the kit contains the following components:

¥ Cable adapter assembly

¥ Two small screws

¥ Replacement bracket for AT-MIO-16 boards

Содержание SCXI-1345

Страница 1: ...chassis and your MIO board You can use the SCXI 1345 with the following MIO boards PC XT PC AT Macintosh AT MIO 16 NB MIO 16 AT MIO 16F 5 NB MIO 16X AT MIO 16X The SCXI 1345 shielded cable consists of...

Страница 2: ...Acquisition Board Figure 1 Connecting the SCXI 1345 to Your MIO Board and SCXI Module Perform the following steps to install the SCXI 1345 cable 1 Turn off the power to your computer and the SCXI cha...

Страница 3: ...ounding strap tab a Remove your MIO board from your computer b Unscrew and remove the two screws that attach the bracket to the MIO board c Remove the bracket from the board See Figure 2 for NB board...

Страница 4: ...ompatible with the 50 position connector on the SCXI 1345 you must remove them The 50 position SCXI 1345 connector has a center polarization bump that prevents you from inserting the connector upside...

Страница 5: ...an extra tab that attaches to the grounding strap f Install the new bracket by aligning the bracket with the holes in your MIO board and screw in the two mounting screws 6 Install your MIO board in a...

Страница 6: ...of the ground strap onto the tab of the MIO bracket 10 Secure the cable to a fixed object with the tie wraps to relieve the strain on the cable Strain relief is needed because the SCXI 1345 shielded c...

Страница 7: ...ase the ground current flowing between the SCXI system and the computer thus increasing the noise in some applications Laboratory tests with the grounding strap connected produced less noise but you c...

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