Appendix C
SCC Power Requirements and Solutions
SC-2345/2350 Carrier User Manual
C-4
ni.com
Calculating the Power Available from the SCC-PWR01
To maximize the amount of power available from the SCC-PWR01, use
an ex5 VDC power supply with a minimum rating of 10.2 W.
Analog power available is limited by the 2 W DC–DC converter on the
SC-2345/2350 carrier and cannot exceed 1.74 W.
SC-2345 Carrier
For the SCC-PWR01 to supply enough power for your SCC configuration
in the SC-2345 carrier, the following three conditions must be true:
P
A
≤
P
AMax
and
P
D
≤
P
DMax
and
P
A
/0.62 +
P
D
+ 0.45 W
≤
P
S
where
P
A
is the total analog power required by your SCC configuration,
in watts;
P
AMax
is the maximum analog power available in watts, from
Table C-3;
P
D
is the total digital power required by your SCC configuration,
in watts;
P
DMax
is the maximum digital power available in watts, from
Table C-3; and
P
S
is the rating of the power supply in watts.