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Download National Instruments 6024E Switch User Manual
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Contents Chapter 4 Signal Connections I/O Connector ................................................................................................................ 4-1 Analog Input Signal Overview...................................................................................... 4-8 Types of Signal Sources.................................................................................. 4-8 Floating Signal Sources .................................................................... 4-9 Ground-Referenced Signal Sources.................................................. 4-9 Analog Input Modes........................................................................................ 4-9 Analog Input Signal Connections.................................................................................. 4-11 Differential Connection Considerations (DIFF Input Configuration) ............ 4-13 Differential Connections for Ground-Referenced Signal Sources ... 4-14 Differential Connections for Nonreferenced or Floating Signal Sources........................................................................................... 4-15 Single-Ended Connection Considerations ...................................................... 4-17 Single-Ended Connections for Floating Signal Sources (RSE Configuration) ...................................................................... 4-18 Single-Ended Connections for Grounded Signal Sources (NRSE Configuration) ................................................................... 4-18 Common-Mode Signal Rejection Considerations........................................... 4-19 Analog Output Signal Connections ............................................................................... 4-19 Digital I/O Signal Connections ..................................................................................... 4-20 All Devices...................................................................................................... 4-20 Programmable Peripheral Interface (PPI) ..................................................................... 4-22 Port C Pin Assignments .................................................................................. 4-23 Power-up State ................................................................................................ 4-24 Changing DIO Power-up State to Pulled Low ................................. 4-24 Timing Specifications ..................................................................................... 4-25 Mode 1 Input Timing ...................................................................................... 4-27 Mode 1 Output Timing ................................................................................... 4-28 Mode 2 Bidirectional Timing.......................................................................... 4-29 Power Connections........................................................................................................ 4-30 Timing Connections ...................................................................................................... 4-30 Programmable Function Input Connections ................................................... 4-31 DAQ Timing Connections .............................................................................. 4-32 SCANCLK Signal ............................................................................ 4-33 EXTSTROBE* Signal ...................................................................... 4-33 TRIG1 Signal.................................................................................... 4-34 TRIG2 Signal.................................................................................... 4-35 STARTSCAN Signal........................................................................ 4-36 CONVERT* Signal .......................................................................... 4-38 AIGATE Signal ................................................................................ 4-39 SISOURCE Signal............................................................................ 4-40 6023E/6024E/6025E User Manual vi ni.com
