National Instruments NI sbRIO-960x - Manual (Page 24)

NI sbRIO-960x 24 ni.com
Power Requirements
The sbRIO device requires a power supply connected to connector J3.
Refer to Figure 4 for the location of J3. Refer to the
Powering the sbRIO
Device section for information about connecting the power supply.
Power supply voltage range....................19–30 VDC 1
Power supply current limit .....................1.8 A
Power connector internal fuse ................2 A non-replaceable
Total power requirement
= P
int
+ P
DIO
+ P
5V
+ P
CSer
,
where P
int
is the consumption by sbRIO internal operation
P
DIO
is the consumption by the 3.3 V DIO
P
5V
is the consumption by the 5 V voltage output
P
CSer
is the consumption by installed board-only C Series
modules.
Note You must add 20% to the calculated or measured total power requirement to account
for transient and startup conditions.
Maximum P
int
.........................................6.0 W
Maximum P
DIO
.......................................1.28 W
P
DIO
= Total DIO Current
× 3.3 V/0.85
Maximum P
5V
.........................................11.1 W
P
5V
= Total 5 V Output Current
× 5 V/0.9
Maximum P
CSer
.......................................3.3 W; each installed C Series
module consumes up to 1.1 W
1 The sbRIO device is 1–2% more efficient with a 19 V supply than with a 30 V supply.