National Instruments Corporation NI 9423 Screw Term, 30 V, 1 us, 8-Ch Sinking DI Module
- 8-channel, 1 s high-speed digital input
- Up to 30 V, sinking digital input
- Compatible with NI CompactDAQ counters
- 250 Vrms, CAT II isolation
- 10-position screw-terminal connector
- -40 C to 70 C operating, 5 g vibration, 50 g shock
- Configure Complete CompactRIO or NI CompactDAQ System
- View Data Sheet
View Support Resources
The NI 9151 expansion chassis connects directly to the digital connector on most NI R Series PXI, PCI, and PCI Express multifunction reconfigurable I/O (RIO) devices and houses up to four NI C Series I/O modules for high-performance, industrial signal conditioning. You can choose from a variety of I/O modules including 24 V industrial digital I/O with up to 32 channels per module, which is ideal for creating industrial counter/timers, electromechanical relays, 80 mV thermocouple inputs, 5 V IEPE accelerometer analog inputs, and simultaneous voltage and current analog outputs. Visit ni.com/compactrio for the latest information on module availability.
View the following list to determine how many R Series expansion chassis you can connect to your R Series device based on the number of digital connectors for each device.
-NI 7811R: up to four NI 9151 R Series expansion chassis (16 C Series I/O modules)
-NI 7813R: up to four NI 9151 R Series expansion chassis (16 C Series I/O modules)
-NI 7830R: one NI 9151 R Series expansion chassis (four C Series I/O modules)
-NI 7831R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7833R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7841R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7842R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7851R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7852R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7853R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7854R: up to two NI 9151 R Series expansion chassis (eight C Series I/O modules)
-NI 7855R: not supported
-NI 7856R: not supported
Note on C Series Support
See the document titled C Series Support for the NI 9151 under the Resources tab for more information on supported modules.