NI DAQPad-6016 OEM User Guide
12
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LEDs
The DAQPad-6016 OEM has two LEDs that reflect the state of the device.
The green READY LED indicates whether the device is powered on and
configured as a USB device. The yellow ACTIVE LED indicates whether
there is activity over the USB bus. Figure 9 shows the pins that connect the
LEDs to the device.
Figure 9.
DAQPad-6016 OEM LEDs (191 mm
×
163 mm Version)
The READY LED has two sets of pins. The first set of pins labeled 1a and
the resistor labeled R5 are used to connect to the onboard LED. The 220
Ω
R5 resistor drives enough current to power on the LED.
The second set of pins labeled 1b has berg headers. These pins allow you
to connect an external LED circuit to the device.
The set of pins labeled 2 and the 220
Ω
resistor labeled R6 are used for the
ACTIVE LED. The ACTIVE LED does not have a separate pair of berg
headers to connect to an external LED circuit.
R5
R6
1a–
1a+
2–
2+
1b+
1b–
+VE
GND
E1
E2
Positive Connection
(berg header) for
External READY LED
Negative Connection
(berg header) for
External READY LED
Resistor to adjust
current through
ACTIVE LED
Resistor to adjust
current through
READY LED
Positive Connection
for READY LED
Negative Connection
for READY LED
Negative Connection
for ACTIVE LED
Positive Connection
for ACTIVE LED
