The NI ‑ 9375 is a digital I / O interface that uses industrial logic levels and signals so it can be connected directly to a wide variety of industrial switch modules, converters, and other devices. All digital inputs are compatible with 24 V logic levels and all output lines with signals from 6 to 30 V, depending on the external power supply. The NI-9375 has isolation between the input and output banks and resistance isolation from channel to ground.
 Product features:
-  Number of pure digital input channels: 16
-  Number of pure digital output channels: 16
-  Number of bidirectional digital channels: 0
-  Logic level of the digital I / O: 12 V 24 V.
-  Maximum update rate: 7 µs
-  Current flow direction: Current-sinking input Current-supplying output
-  Isolation of the digital I / O: 60 VDC isolation of the channel from ground
-  Connection type front: D-Sub
-  Protective coating: no
-  With housing: yes
-  Supported hardware platform: CompactDAQ, CompactRIO