National Instruments Eight-slot USB Chassis NI cDAQ-9172 - Manual (Page 18)

NI cDAQ-9172 User Guide and Specifications 18 ni.com
Using the NI cDAQ-9172
The cDAQ system consists of three parts: C Series I/O modules, the cDAQ
module interface, and the USB-STC2. These components digitize signals,
perform D/A conversions to generate analog output signals, measure and
control digital I/O signals, and provide signal conditioning.
Figure 8. NI cDAQ-9172 Block Diagram
C Series I/O Modules
National Instruments C Series I/O modules provide built-in signal
conditioning and screw terminal, spring terminal, BNC, D-SUB, or
RJ-50 connectors. A wide variety of I/O types are available, allowing
you to customize the cDAQ system to meet your application needs.
C Series I/O modules are hot-swappable and automatically detected by the
NI cDAQ-9172 chassis. I/O channels are accessible using the NI-DAQmx
driver software.
Because the modules contain built-in signal conditioning for extended
voltage ranges or industrial signal types, you can usually make your
wiring connections directly from the C Series I/O modules to your
sensors/actuators. In most cases, the C Series I/O modules provide isolation
from channel-to-earth ground.
For more information about which C Series I/O modules are compatible
with the NI cDAQ-9172 chassis, refer to the KnowledgeBase document,
C Series Modules Supported in the NI cDAQ-9172 CompactDAQ.
C Series
I/O Module
C Series
I/O Module
C Series
I/O Module
cDAQ Module
Interface
USB-
STC2
USB
2.0