Power Switch
Use the power switch to power the NI USB-7855R OEM device on and off. The following
figure shows the pins on the power switch and power circuitry.
100 kΩ
The following table lists the pin locations and signal descriptions.
12 | NI USB-7855R OEM User Manual | ni.com
Figure 10. Attaching External LEDs
OEM (On-Board)
1
Figure 11. Power Switch (Shown in the On Position)
100 kΩ
VDC Out
to Ground
3
2
1
Switch
SW2
NC
NC
SW2
1
Power to
2
Device
3
100 kΩ
+5 V
6
7
VDC In
Connector
J8
1
2
J8
F1
2
Power
Connector
1
External
Resistor
External
LED