National Instruments E Series , Chapter 4 Signal Connections

Table of Contents
DAQCard E Series User Manual vi  National Instruments Corporation
Digital I/O .....................................................................................................................3-12
Timing Signal Routing ..................................................................................................3-13
Programmable Function Inputs .......................................................................3-14
DAQCard Clocks ............................................................................................3-14
Chapter 4
Signal Connections
I/O Connector ................................................................................................................4-1
Analog Input Signal Connections .................................................................................4-10
Types of Signal Sources ................................................................................................4-12
Floating Signal Sources ..................................................................................4-12
Ground-Referenced Signal Sources ................................................................4-12
Input Configurations .....................................................................................................4-12
Differential Connection Considerations (DIFF Input Configuration) ............4-14
Differential Connections for Ground-Referenced
Signal Sources ................................................................................ 4-15
Differential Connections for Nonreferenced or Floating
Signal Sources ................................................................................ 4-16
Single-Ended Connection Considerations ......................................................4-18
Single-Ended Connections for Floating Signal Sources (RSE
Configuration) ................................................................................4-19
Single-Ended Connections for Grounded Signal Sources (NRSE
Configuration) ................................................................................4-19
Common-Mode Signal Rejection Considerations ..........................................4-20
Digital I/O Signal Connections .....................................................................................4-21
Power Connections ........................................................................................................4-22
Timing Connections ......................................................................................................4-22
Programmable Function Input Connections ...................................................4-24
Data Acquisition Timing Connections ........................................................... 4-24
SCANCLK Signal ............................................................................4-26
EXTSTROBE* Signal ......................................................................4-27
TRIG1 Signal ................................................................................... 4-27
TRIG2 Signal ................................................................................... 4-29
STARTSCAN Signal ....................................................................... 4-30
CONVERT* Signal ..........................................................................4-33
AIGATE Signal ................................................................................4-34
SISOURCE Signal ........................................................................... 4-35
UISOURCE Signal ...........................................................................4-36
General-Purpose Timing Signal Connections ................................................ 4-37
GPCTR0_SOURCE Signal ..............................................................4-37
GPCTR0_GATE Signal ...................................................................4-38
GPCTR0_OUT Signal ......................................................................4-38