Справочник Пользователя для National Instruments NI 9474

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© National Instruments Corp.
17
NI 9472/9474
Typically, when a system is in sleep mode, you cannot 
communicate with the modules. In sleep mode, the system 
consumes minimal power and may dissipate less heat than it does 
in normal mode. Refer to the Specifications section for more 
information about power consumption and thermal dissipation. 
Specifications
The following specifications are typical for the range –40 to 70 °C 
unless otherwise noted. All voltages are relative to COM unless 
otherwise noted. The specifications are the same for the NI 9472 
and the NI 9474 unless otherwise noted.
Output Characteristics
Number of channels.......................... 8 digital output channels
Output type ....................................... Sourcing
Power-on output state ....................... Channels off
External power supply voltage range (V
sup
)
NI 9472....................................... 6–30 VDC
NI 9474....................................... 5–30 VDC