Ni 6512/6513 I/O Connector; Ni 6514/6515 I/O Connector - National Instruments NI PCI-6510 User Manual

Chapter 3 Digital I/O
The input lines on the NI 6511 consist of input photocouplers, which react to a voltage
differential rather than only to a voltage increase. If the voltage connected to a digital input is
either greater than or less than the voltage connected to PX.COM by at least the logic threshold,
the reading on the digital line will be logic high, even though in one instance the digital line has
a lower voltage level than PX.COM.
For more information, refer to the

NI 6512/6513 I/O Connector

The 100-pin high-density SCSI connector on the NI 6512/6513 provides access to the digital
inputs and outputs. The digital I/O available on this connector includes 64 outputs. For easy
connection to the digital I/O connector, use the National Instruments SH100-100-F shielded
digital I/O cable with the SCB-100 connector block, or use the R1005050 ribbon cable with the
CB-50 or CB-50LP connector block. For more information on digital I/O connectivity options,
refer to Chapter 5, Cables and
Caution
specifications. Doing so could permanently damage the NI 6512/6513 and the
computer. Refer to the NI 651x Specifications, available at
information about maximum input ratings.
The output lines on the NI 6512 consist of photocouplers and Darlington arrays. To connect to
these signals, connect a 5 V to 30 V power supply to VCC, connect COM (GND) to ground, and
cross a load between digital output and COM (GND).
The output lines on the NI 6513 consist of photocouplers and Darlington arrays. To connect to
these signals, connect a 5 V to 30 V power supply to COM (VCC), connect GND to ground, and
cross a load between digital output and COM (VCC).
For more information, refer to the

NI 6514/6515 I/O Connector

The 100-pin high-density SCSI connector on the NI 6514/6515 provides access to the digital
inputs and outputs. The digital I/O available on this connector includes 32 inputs and 32 outputs.
For easy connection to the digital I/O connector, use the National Instruments SH100-100-F
shielded digital I/O cable with the SCB-100 connector block, or use the R1005050 ribbon cable
with the CB-50 or CB-50LP connector block. For more information on digital I/O connectivity
options, refer to Chapter 5,
Caution
specifications. Doing so could permanently damage the NI 6514/6515 and the
computer. Refer to the NI 651x Specifications, available at
information about maximum input ratings.
3-2 | ni.com
Pin Assignments
Accessories.
Do not make connections to the digital I/O that exceed the maximum I/O
Pin Assignments
Cables and Accessories.
Do not make connections to the digital I/O that exceed the maximum I/O
section.
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