PCI/PXI/PCIe-6509 User Guide and Specifications
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© National Instruments
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15
Figure 11.
NI 6509 Sourcing Connection Example, > 24 mA
Driving an SSR
Figure 12 shows an example of connecting the NI 6509 to an SSR.
Figure 12.
NI 6509 SSR Connection Example
Power Connections
+5 V Power Available at I/O Connector
Pins 49 and 99 5 V power to the I/O connector. The I/O connector power has a fuse for
overcurrent protection. This fuse is not customer replaceable. If the fuse is blown, return the
device to NI for repair.
Caution
Do
not
connect the +5 V power pin directly to ground or to any other
voltage source on any other device. Doing so may permanently damage the NI 6509
device and the computer.
Disk Drive Power Connector (PCIe-6509 Only)
The disk drive power connector is a four-pin hard drive connector on the PCIe-6509 that, when
connected, increases the current the device can supply on the +5 V terminal.
Note
The disk drive power has a fuse for overcurrent protection. This fuse is not
customer replaceable. If the fuse is blown, the fuse LED (reference designator
DS1
—located on the visible edge of the underside of the installed device) is lit. In
this case, return the device to NI for repair.
P
X
.
Y
GND
NI 6509
Vcc
+
–
VAC
SS
R
PX.Y
GND
Lo
a
d
Lo
a
d
NI 6509
