The NI 9145 requires a 9 V to 30 V external power supply. The NI 9145 filters and regulates the supplied power and provides power for the C Series modules. The NI 9145 has one layer of reverse-voltage protection.

The following table lists the POWER LED indicators.

Table 4. POWER LED Indicators
LED Color LED Pattern Indication
Green Solid The NI-9145 is powered on and the connected power supply is adequate.
— Off The NI-9145 is powered off.

What to Use

  • Screwdriver, 2.54 mm (0.10 in.) flathead
  • Power supply, 9 V to 30 V, 20 Wminimum
  • Wire, 2.0 mm2 (14 AWG) or larger

NI recommends the power supply listed in the following table for the NI-9145.

Table 5. NI Power Supplies
Power Supply Part Number
NI PS-15 Industrial Power Supply (24 V DC, 5 A, 100 V AC to 120 V AC/200 V AC to 240 V AC input) 781093-01

What to Do

Complete the following steps to connect a power supply to the NI 9145.

  1. Ensure that your power supply is powered off.
  2. Remove the power connector from the NI 9145.
    Caution Do not tighten or loosen the terminal screws on the power connector while the NI 9145 is powered on.
  3. Connect the power supply to the power connector, as shown in the following figure.
    Figure 4. NI 9145 Power Connections


    Note The C terminals are internally connected to each other.
  4. Tighten the terminal screws on the power connector to 0.20 N · m to 0.25 N · m (1.8 lb · in. to 2.2 lb · in.) of torque.
  5. Install the power connector on the front panel of the NI 9145.
  6. Tighten the power connector screw flanges to 0.3 N · m to 0.4 N · m (2.7 lb · in. to 3.5 lb · in.) of torque.
  7. Power on the power supply.