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SCB-68 UG Introduction

This guide describes how to connect and use the SCB-68 with 68-pin or 100-pin data

acquisition (DAQ) devices and other NI products with a 68-pin SCSI or VHDCI I/O

connector. For a complete list of supported devices and available SCB-68 features,

visit 

ni.com/r/scb68dev

.

Note

 To use the SCB-68 with devices without analog input functionality,

you must change the default switch setting. Refer t

Using the SCB-68 in

Direct Feedthrough Mode

 for more information.

Figure 1. SCB-68 Parts Locator Diagram

3

8

9

1

2

5

6

7

10

8

5

4

1. Quick Reference Label (Optional)
2. Top Cover
3. 68-Pin Connector Screws
4. Lock Washers
5. Shielding Screws
6. 68-Pin I/O Connector
7. Base
8. Strain-Relief Screws
9. Strain-Relief Hardware

10. SCB-68 Board Assembly

© National Instruments

3

SCB-68 Getting Started

Summary of Contents for SCB-68

Page 1: ...SCB 68 Getting Started 2022 07 06...

Page 2: ...3 Getting Started with the SCB 68 4 Using the SCB 68 in Direct Feedthrough Mode 7 Using the SCB 68 with Multifunction I O Devices 7 Connecting Signal Sources to Analog Inputs 9 Fuse and Power Informat...

Page 3: ...use the SCB 68 with devices without analog input functionality you must change the default switch setting Refer to Using the SCB 68 in Direct Feedthrough Mode for more information Figure 1 SCB 68 Part...

Page 4: ...pin connectors and up to four SCB 68 accessories with supported products with four 68 pin connectors Getting Started with the SCB 68 The following cautions contain important safety information concer...

Page 5: ...RC20 B RC21 D R30 A R31 C RC9 E R14 F R15 G RC22 B RC23 D R32 A R33 C RC10 E R16 F R17 G RC24 B RC25 D R34 A R35 C RC11 E R18 F RC2 R2 RC3 R3 R19 G RC26 B RC27 D R36 A R37 C R38 R10 RC1 7 7 6 7 40 8 1...

Page 6: ...f 0 5 0 6 N m 4 43 5 31 lb in 6 Reinstall the strain relief if removed and tighten the strain relief screws 7 Close the top cover and reinsert the shielding screws to ensure proper shielding Caution D...

Page 7: ...the SCB 68 in Direct Feedthrough Mode NI 25xx NI 4309 NI 65xx NI 66xx NI 67xx and NI 78xx and products without analog input functionality must use direct feedthrough mode Move the switches to the dire...

Page 8: ...signal conditioning area of the accessory Refer to the following figure for a detailed diagram S5 S4 S3 S1 S2 MIO with single ended temperature sensor mode Move switches S1 S2 S3 S4 and S5 to the posi...

Page 9: ...itioning Connecting Signal Sources to Analog Inputs For detailed information about connections from floating or ground referenced signal sources to analog inputs refer to your device documentation Ref...

Page 10: ...Before replacing any fuses check for short circuits from power to ground Refer to the SCB 68 User Manual for Advanced Functions for information about filtering the power on the SCB 68 Where to Go fro...

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