National Instruments NI 6014 - Manual (Page 7)

Contents
NI 6013/6014 User Manual viii ni.com
Chapter 4
Connecting Signals
I/O Connector ................................................................................................................ 4-1
Analog Input Signal Overview ...................................................................................... 4-6
Types of Signal Sources.................................................................................. 4-7
Floating Signal Sources .................................................................... 4-7
Ground-Referenced Signal Sources.................................................. 4-7
Analog Input Modes........................................................................................ 4-7
Connecting Analog Input Signals.................................................................................. 4-9
Differential Connection Considerations.......................................................... 4-10
Differential Connections for Ground-Referenced
Signal Sources .................................................................................. 4-11
Differential Connections for Nonreferenced or Floating
Signal Sources .................................................................................. 4-12
Single-Ended Connection Considerations ...................................................... 4-14
Single-Ended Connections for Floating Signal Sources................... 4-15
Single-Ended Connections for Grounded Signal Sources ................ 4-15
Common-Mode Signal Rejection Considerations........................................... 4-16
Connecting Analog Output Signals ............................................................................... 4-17
Connecting Digital I/O Signals ..................................................................................... 4-18
Power Connections ........................................................................................................ 4-19
Connecting Timing Signals ........................................................................................... 4-19
Programmable Function Input Connections ................................................... 4-20
DAQ Timing Connections .............................................................................. 4-21
TRIG1 Signal.................................................................................... 4-22
TRIG2 Signal.................................................................................... 4-23
STARTSCAN Signal........................................................................ 4-25
CONVERT* Signal .......................................................................... 4-27
AIGATE Signal ................................................................................ 4-28
SISOURCE Signal............................................................................ 4-29
SCANCLK Signal ............................................................................ 4-29
EXTSTROBE* Signal ...................................................................... 4-30
Waveform Generation Timing Connections ................................................... 4-31
WFTRIG Signal................................................................................ 4-31
UPDATE* Signal ............................................................................. 4-32
UISOURCE Signal ........................................................................... 4-33
General-Purpose Timing Signal Connections................................................. 4-34
GPCTR0_SOURCE Signal .............................................................. 4-34
GPCTR0_GATE Signal ................................................................... 4-35
GPCTR0_OUT Signal ...................................................................... 4-35
GPCTR0_UP_DOWN Signal........................................................... 4-36
GPCTR1_SOURCE Signal .............................................................. 4-36
GPCTR1_GATE Signal ................................................................... 4-37