National Instruments DAQArb 5411 User Manual

Also see for DAQArb 5411: Getting started guide

Contents

National Instruments DAQArb 5411 User Manual Manual pdf 23 page image

Chapter 3 Signal ConnectionsDAQArb 5411 User Manual3-6 ©National Instruments CorporationSHC50-68 50-Pin Cable ConnectorYou can use an optional SHC50-68 50-pin to 68-pin cable for patterngenerator output. The cable connects to the digital output connector onthe DAQArb 5411. Figure 3-5 shows the 68-pin connector pinassignments on the SHC50-68 cable.Table 3-1. Digital Output Connector Signal DescriptionsSignal Name Type DescriptionDGND – Digital groundEXT_TRIG Input External trigger—The external trigger input signal is aTTL-level signal that you can use to start or step through awaveform generation. For more information on trigger sourcesand trigger mode, see Chapter 4, Arb Operation.MARKER Output Marker—A marker is a TTL-level output signal that you can setup at any point in the waveform being generated. You can usethis signal to synchronize or trigger other devices at a certaintime within waveform generation.NC – Not connected.PA<0..15> Output Digital pattern generator—The 16-bit digital representation ofthe analog waveform is available as digital pattern outputsalong with the clock to which it is synchronized. This data isavailable directly from the memory after some sample clockspipeline delay. The digital pattern outputs are available as TTLoutput levels.PCLK Output Digital pattern clock—The digital pattern clock outputsynchronizes the digital pattern output. This data is availabledirectly from the memory after some sample clocks pipelinedelay. The clock output is available as a TTL output level.RFU – Reserved for future use. Do not connect signals to this pin.+5V Output +5 V power—A +5 V output signal is available on the DAQArbto power external devices. The maximum current you can drawis 100 mA.