NI CompactDAQ cDAQ-917 Series - Chapter 1 Getting Started with the cDAQ Chassis; Safety Guidelines; Unpacking; Installing the cDAQ Chassis

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Contents
Chapter 1
Getting Started with the cDAQ Chassis
Safety Guidelines.............................................................................................................. 1-2
Safety Guidelines for Hazardous Voltages............................................................... 1-3
Electromagnetic Compatibility Guidelines ...................................................................... 1-3
Unpacking......................................................................................................................... 1-4
Installing the cDAQ Chassis............................................................................................. 1-5
Mounting the cDAQ Chassis............................................................................................ 1-7
Using the cDAQ Chassis on a Desktop .................................................................... 1-7
NI 9901 Desktop Kit for NI cDAQ-9174/9178 Chassis................................... 1-7
Mounting the cDAQ Chassis on a Panel .................................................................. 1-8
NI cDAQ-9171 ................................................................................................. 1-8
NI cDAQ-9174/9178 ........................................................................................ 1-8
Mounting the NI cDAQ-9174/9178 on a DIN Rail .................................................. 1-10
NI cDAQ Chassis Features............................................................................................... 1-11
Chassis Grounding Screw......................................................................................... 1-11
USB Cable Strain Relief........................................................................................... 1-12
LEDs......................................................................................................................... 1-12
Power Connector ...................................................................................................... 1-13
TRIG (PFI) BNC Connectors ................................................................................... 1-13
Cables and Accessories .................................................................................................... 1-13
Removing I/O Modules from the Chassis ........................................................................ 1-13
Using the cDAQ Chassis .................................................................................................. 1-14
C Series I/O Module ................................................................................................. 1-14
Parallel versus Serial DIO Modules ................................................................. 1-15
cDAQ Module Interface ........................................................................................... 1-15
STC3......................................................................................................................... 1-15
Chapter 2
Analog Input
Analog Input Triggering Signals ...................................................................................... 2-1
Analog Input Timing Signals ........................................................................................... 2-1
AI Sample Clock Signal ........................................................................................... 2-2
Routing the Sample Clock to an Output Terminal ........................................... 2-2
AI Sample Clock Timebase Signal........................................................................... 2-2
AI Convert Clock Signal Behavior For Analog Input Modules............................... 2-2
Scanned Modules.............................................................................................. 2-3
Simultaneous Sample-and-Hold Modules ........................................................ 2-3
Sigma-Delta Modules ....................................................................................... 2-3
Slow Sample Rate Modules.............................................................................. 2-4