Contents
vi
www.ni.com
Output Channels.............................................................................................. 3-9
Overcurrent Protection .................................................................................... 3-12
Power-on and Power-off Conditions............................................................... 3-12
PCI Interface Circuitry.................................................................................... 4-2
Digital I/O Circuitry........................................................................................ 4-2
Optical Isolation Circuitry .............................................................................. 4-3
Digital Filtering ............................................................................................................. 4-3
Change Notification....................................................................................................... 4-5
Appendix B
Technical Support Resources
Figures
6527 Device Connector Pin Assignments............................................. 3-2
Cable-Assembly Connector Pinout
for the R1005050 Ribbon Cable3-4
Signal Connection Example for Isolated Input ..................................... 3-8
Reducing Input Current for High Voltage Signals ............................... 3-9
Signal Connections for Solid-State Relays ........................................... 3-10
Signal Connections for Driving TTL Voltages..................................... 3-11
6527 Block Diagram ............................................................................. 4-2