National Instruments PCI-6023E - Manual (Page 33)

Chapter 4 Signal Connections
PCI-6023E/6024E/6025E User Manual 4-4 © National Instruments Corporation
Table 4-1 shows the I/O connector signal descriptions for the PCI-6023E,
PCI-6024E, and PCI-6025E.
Table 4-1. I/O Connector Signal Descriptions
Signal Name Reference Direction Description
AIGND — — Analog Input Ground—These pins are the reference point
for single-ended measurements in RSE configuration and
the bias current return point for differential measurements.
All three ground references—AIGND, AOGND, and
DGND—are connected together on your board.
ACH<0..15> AIGND Input Analog Input Channels 0 through 15—Each channel pair,
ACH<i, i+8> (i = 0..7), can be configured as either one
differential input or two single-ended inputs.
AISENSE AIGND Input Analog Input Sense—This pin serves as the reference node
for any of channels ACH <0..15> in NRSE configuration.
DAC0OUT 1 AOGND Output Analog Channel 0 Output—This pin supplies the voltage
output of analog output channel 0.
DAC1OUT 1 AOGND Output Analog Channel 1 Output—This pin supplies the voltage
output of analog output channel 1.
AOGND — — Analog Output Ground—The analog output voltages are
referenced to this node. All three ground
references—AIGND, AOGND, and DGND—are connected
together on your PCI E Series board.
DGND — — Digital Ground—This pin supplies the reference for the
digital signals at the I/O connector as well as the +5 VDC
supply. All three ground references—AIGND, AOGND,
and DGND—are connected together on your PCI E Series
board.
DIO<0..7> DGND Input or
Output
Digital I/O signals—DIO6 and 7 can control the up/down
signal of general-purpose counters 0 and 1, respectively.
PA<0..7> 2 DGND Input or
Output
Port A bidirectional digital data lines for the 82C55A
programmable peripheral interface on the PCI-6025E. PA7
is the MSB. PA0 is the LSB.
PB<0..7> 2 DGND Input or
Output
Port B bidirectional digital data lines for the 82C55A
programmable peripheral interface on the PCI-6025E. PB7
is the MSB. PB0 is the LSB.
PC<0..7> 2 DGND Input or
Output
Port C bidirectional digital data lines for the 82C55A
programmable peripheral interface on the PCI-6025E. PC7
is the MSB. PC0 is the LSB.
+5 V DGND Output +5 VDC Source—These pins are fused for up to 1 A of
+5 V supply. The fuse is self-resetting.
PCI.book Page 4 Wednesday, September 16, 1998 9:09 AM