National Instruments SCXI-1345 Installation Manual Download

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8. Connect the 50-pin connector (the end with the grounding strap) of the cable to the I/O

connector on the MIO board as shown in Figure 6.

Shielded Cable

Grounding Strap

Step 8

Step 9

MIO Data Acquisition Board

Figure 6. Cable to I/O Connector Connection

9. Slide the end lug 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 cable is considerably stiffer than

ribbon cable. The cable connector also has a long stiff backshell that can exert leverage on

the MIO board connector.

The finished installation should look like Figure 7.

Computer

SCXI-1345

Shielded Cable

SCXI

Chassis

Figure 7. Installed Cable

Summary of Contents for SCXI-1345

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...