National Instruments PCI-6023E, PCI-6024E, PCI-6025E Table4-1 shows the I/O connector signal descriptions for the PCI-6023E, PCI-6024E, and PCI-6025E.

Chapter 4 Signal Connections

Table4-1 shows the I/O connector signal descriptions for the PCI-6023E, PCI-6024E, and PCI-6025E.

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.

DAC0OUT1AOGND Output Analog Channel 0 Output—This pin supplies the voltage

output of analog output channel 0.

DAC1OUT1AOGND 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>2DGND 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>2DGND 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>2DGND 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 Vsupply. The fuse is self-resetting.

PCI.book Page 4 Wednesday, September 16, 1998 9:09 AM