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Pinout
V1
C
V2
C
Caution
functionally isolated from chassis ground. This isolation is intended to prevent
ground loops, but does not meet IEC 61010-1 for safety isolation. You can connect
the C terminals to chassis ground externally. Refer to the specifications on
manuals
for information about the power supply input range and maximum voltage
from terminal to chassis ground.
If you apply power to both the V1 and V2 inputs, the cRIO-904x operates from the V1 input.
If the input voltage to V1 is insufficient, the cRIO-904x operates from the V2 input.
The cRIO-904x has reverse-voltage protection.
The following NI power supplies and accessories are available for the cRIO-904x.
NI PS-15 Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input
NI PS-10 Desktop Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input 782698-01
4-Position Gold Power Supply Plugs (Quantity 5)
NI 9979 Strain Relief for 4-Position Power Connector
SD Card Removable Storage
The cRIO-904x provides an SD card slot that can read from and write to SD cards. The slot
supports SD card interface speeds up to UHS-I DDR50.
Notice
Using SD cards that are not approved by NI might invalidate specifications
and result in unreliable performance.
Notice
Full and high-speed SD cards are prohibited for use with the cRIO-904x.
The following accessories are available from the SD card slot.
Table 5. Power Connector Pinout
Pin
V1
C
V2
C
The C terminals are internally connected to each other, but are
Table 6. Power Accessories
Accessory
Primary power input
Common
Secondary power input
Common
cRIO-904x User Manual | © National Instruments | 9
Description
781093-01
783529-01
196939-01
ni.com/
Part Number
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