©NationalInstruments Corporation A-1 6527User Manual
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Specifications

This appendix lists the specifications for the 6527devices. These
specificationsare typical at 25 °C unless otherwise no ted.

Digital I/O

PCI/PXI-6527.........................................24 optically-isolated digital input
channelsand 24 solid-state relay
output channels

Isolated Inputs

Numberof input channels ...................... 24, each with its own ground
reference isolated from other
channels
Maxinput voltage .................................. 28 VDC
Digitall ogic levels
Inputcurrent
5V inputs........................................1.5 mA/channel max
24V inputs......................................8 mA/channel max
Isolation..................................................60 VDC channel-to-channeland
from computer ground and VCC

Relay Outputs

Numberof channels ............................... 24, each with two terminals that
are isolated from other channels
Relaytype ..............................................Normally open form A solid-state
relays
Level Min Max
Inputl owvoltage 0 VDC 1 VDC
Input high voltage 2 VDC 28 VDC