This user guide describes the NI 6509 device features, I/O connector pinouts, and signal information, and lists specifications. The NI 6509 is a 96-bit, high-drive digital input/output (I/O) device for PCI, PXI, and CompactPCI chassis. The NI 6509 features 96 TTL/CMOS-compatible digital I/O lines, 24 mA high-drive output, a watchdog timer, digital filtering, and programmable power-up states.
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