NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT 48 ni.com
Example power requirement calculations:
• For an NI sbRIO-9642/9642XT with three installed board-only C
Series modules, 20 mA total current through the 3.3 V DIO pins, and
1 A of current through the 5 V output, calculate the total power
requirement as follows:
P
int
= 8.00 W
P
CSer
= 3.30 W
P
DIO
= 0.08 W
P
5V
= 5.55 W
Adding 20% for transient conditions, 16.93 W × 1.2 = 20.32 W
Total power requirement = 20.32 W
• For an sbRIO-9612/9612XT with one installed board-only C Series
module, 330 mA total current through the 3.3 V DIO pins, and no 5 V
output used, calculate the total power requirement as follows:
P
int
= 7.50 W
P
CSer
= 1.10 W
P
DIO
= 1.28 W
P
5V
= 0.00 W
Adding 20% for transient conditions, 9.88 W × 1.2 = 11.86 W
Total power requirement = 11.86 W
Backup battery........................................3 V lithium coin cell,
BR2032 (–40 to 85 °C)
Safety Voltages
Connect only voltages that are within this limit.
V terminal to C terminal.........................35 VDC max,
Measurement Category I
Measurement Category I is for measurements performed on circuits not
directly connected to the electrical distribution system referred to as
MAINS voltage. MAINS is a hazardous live electrical supply system that
powers equipment. This category is for measurements of voltages from
specially protected secondary circuits. Such voltage measurements include
signal levels, special equipment, limited-energy parts of equipment,
circuits powered by regulated low-voltage sources, and electronics.