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USER GUIDE

Digital Flying Lead Cable

Accessory for Single-Ended NI Digital Waveform Generator/Analyzers

The NI SHC68-H1X38 cable is a single-ended cable that breaks out each 
NI digital waveform generator/analyzer signal into two 0.1 inch header 
receptacles, one receptacle each for the signal and ground. The 
NI SHC68-H1X38 cable provides an easy way to connect NI single-ended 
high-speed digital waveform generator/analyzer devices to various types of 
devices and circuits for interfacing, testing, or analysis.

This cable offers connectivity similar to that found on a typical logic 
analyzer, so you can use it in logic analyzer-type applications. Unlike a 
typical logic analyzer, however, this cable also allows for simultaneous 
pattern generation and acquisition so that it can be used in 
stimulus/response applications as well.

This guide explains how to set up and use the NI SHC68-H1X38 cable with 
single-ended NI digital waveform generator/analyzer modules.

Contents

What You Need to Get Started ............................................................... 2
Related Documentation........................................................................... 2
Parts Locator ........................................................................................... 3
Connecting Signals ................................................................................. 4
Using Your Accessory ............................................................................ 6
Specifications .......................................................................................... 7

Summary of Contents for NI SHC68

Page 1: ... of devices and circuits for interfacing testing or analysis This cable offers connectivity similar to that found on a typical logic analyzer so you can use it in logic analyzer type applications Unlike a typical logic analyzer however this cable also allows for simultaneous pattern generation and acquisition so that it can be used in stimulus response applications as well This guide explains how ...

Page 2: ...designed to familiarize you with different aspects of the module The documentation set includes the following pieces NI Digital Waveform Generator Analyzer Getting Started Guide Read this printed document to set up the digital waveform generator analyzer and configure it to complete your first acquisition or generation NI Digital Waveform Generator Analyzer Help This online document provides more ...

Page 3: ...uide Parts Locator Refer to Figure 1 to locate connectors and components on the NI SHC68 H1X38 cable The lead pairs are shown in more detail in Figure 2 Figure 1 NI SHC68 H1X38 Cable Parts Locator Diagram 1 Lead Pairs 2 Removable Sleeving 3 68 Pin VHDCI Connector 1 2 3 ...

Page 4: ... by bundle 1 0 25 in diameter 0 1 in pitch compatible receptacles 2 Strain relief and label 3 Microcoaxial wire 4 Ground Table 1 NI Digital Waveform Generator Analyzer Signal Descriptions Channel Signal Description Bundle DIO 0 31 Bidirectional digital data channels 0 through 31 Refer to the documentation for your NI digital waveform generator analyzer for information about the number of available...

Page 5: ...e A PFI 2 3 Bundle B Reserved PFI 0 For devices that have PFI 0 on a front panel SMB connector this channel is reserved and should not be used Otherwise this channel serves as PFI 0 Bundle B GND Each channel is split into a pair of leads The lead attached with the black wire is the GND signal which serves as the ground reference for that particular channel N A Table 1 NI Digital Waveform Generator...

Page 6: ...optimal signal quality For optimal signal quality connect both the signal and ground receptacles and twist the pair of leads together as shown in the following figure Figure 3 Using the NI SCH68 H1X38 Cable for Interface The receptacles on the SHC68 H1X38 easily attach to standard 0 1 inch pitch 0 025 inch diameter header pins The shipping kit for this cable also contains ten 4 2 header to recepta...

Page 7: ...nnels 32 single ended Control I O Channels 6 single ended Typical Propagation delay 13 5 ns Typical channel to channel skew 250 ps Typical characteristic impedance 50 Ω Typical Input capacitance 150 pF Physical Length 1 5 m I O Connectors One 68 pin DDC Connector 38 header receptacle pairs signal and ground ...

Page 8: ...onal Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents 2005 National Instruments Corporation All rights reserved 374270A 01 Nov05 ...

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