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Anleitung Zusammenfassung
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 What You Need to Get Started To set up and use the NI SHC68-H1X38 cable, you need the following items: . Compatible NI digital waveform generator/analyzer, installed in a PXI chassis, compactPCI chassis, or PCI slot . The documentation included with the digital waveform generator/analyzer and driver software Related Documentation The NI digital waveform generator/analyzer ships with several documents 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 in-depth information about the hardware capabilities of the module, theory of operation, programming flow, and software reference. • NI digital waveform generator/analyzer specifications—These printed documents provide specifications for your device. Digital Flying Lead Cable User Guide 2 ni.com © National Instruments Corporation 3 Digital Flying Lead Cable User Guide 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 1 3 1 2 0.25 in. diameter 0.1 in. pitch compatible receptacles Strain-relief and label 3 4 Microcoaxial wire Ground Figure 2. Detailed Parts Locator Diagram for the Lead Pairs Connecting Signals Each DIO, PFI, and clock channel of the NI digital waveform generator/analyzer connects to a corresponding pair of leads on the NI SHC68-H1X38 cable. The NI SHC68-H1X38 cable is separated into two bundles of 19 channels, and each channel is split into a pair of leads for connecting the signal and its associated ground. Table 1 describes the channels and shows how they are grouped by bundle. 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 DIO channels on your device. DIO <20..31> may not apply to your device. DIO<0..15>: Bundle A DIO<16..31>: Bundle B STROBE / PFI 5 For devices that have a STROBE channel, this signal is the external Sample clock source for dynamic acquisition. Otherwise, this is programmable functional interface (PFI) 5. Bundle A Digital Flying Lead Cable User Guide 4 ni.com Table 1. NI Digital Waveform Generator/Analyzer Signal Descriptions (Continued) Table 1. NI Digital Waveform Generator/Analyzer Signal Descriptions (Continued) Signal Description Bundle CLKOUT / PFI 4 For devices that have a DDC CLK OUT channel, this signal is the exported sample clock signal. Otherwise, this is PFI 4. Bundle A PFI <1..3> Programmable functional interface PFI <1..3>. PFI 1: Bundle 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 © National Instruments Corporation 5 Digital Flying Lead Cable User Guide Digital Flying Lead Cable User Guide 6 ni.com Using Your Accessory The NI SCH68-H1X38 cable breaks out every signal through a 50 . characteristic impedance microcoaxial cable, which is then split into the two leads with receptacles. This cable was designed for both acquisition and generation operations with your single-ended NI digital waveform generator/analyzer. Refer to the Termination sec...