NI cDAQ-9178/9174 User Guide and Specifications 70 ni.com
Module I/O States
At power-on ...........................................................Module-dependent. Refer to the documentation
included with the C Series I/O module(s).
Note The chassis may revert the input/output of the modules to its power-on state when the USB
cable is removed.
Power Requirements
You must use a National Electric Code (NEC) Class 2 power source with the NI cDAQ-9178/9174
chassis.
Note Some C Series I/O modules have additional power requirements. For more information about
C Series I/O module(s) power requirements, refer to documentation included with the C Series
I/O module(s).
Note Sleep mode for C Series I/O modules is not supported in the NI cDAQ-9178/9174.
Input voltage range ................................................9 V to 30 V
Maximum required input power ............................15 W
Power input connector ...........................................2 positions 3.5mm pitch pluggable screw terminal
with screw locks similar to Sauro CTM020F8
Power input mating connector ...............................Sauro CTF020VT or equivalent
Bus Interface
USB specification ..................................................USB 2.0 Hi-Speed
Power from USB
4.10 to 5.25 V ................................................500 µA maximum
High-performance data streams .............................7
Types available...............................................Analog input, analog output, digital input, digital
output, counter/timer input, counter/timer output
Physical Characteristics
NI cDAQ-9178 chassis
Weight (unloaded)..........................................Approx. 878 g (31.0 oz)
Dimensions (unloaded) ..................................25.4 cm × 8.81 cm × 5.89 cm
(10.0 in. × 3.5 in. × 2.3 in.)
NI cDAQ-9174 chassis
Weight (unloaded)..........................................Approx. 574 g (20.2 oz)
Dimensions (unloaded) ..................................15.9 cm × 8.81 cm × 5.89 cm
(6.28 in. × 3.5 in. × 2.3 in.)
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