32 Point Deterministic I/O Card


$ 148.00 each

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16 isolated digital inputs
16 isolated digital outputs
Polling and change-of-state mode for general use
Deterministic mode for precise timing of responses

This I/O card can be mounted inside the CRNS360 or CRNS365 computer to enable precise monitoring and control of digital signals.

The 16 digital inputs have unipolar photo-couplers and offer 3,750 Vrms isolation. Channels 0 through 7 can use either sink or source wiring, with each channel having an independent common. Channels 8 through 15 use sink wiring with a shared common. Voltages of 5 to 24 VDC are read as "high" while voltages 1.5 to 5 VDC are read as "low".

There are also 16 digital outputs of sink type. They have a MOSFET interface with 3,750 Vrms isolation. Each channel can drive up to 500 mA continuous duty, using 30 VDC maximum.

In deterministic mode, the on-board MCU will quickly respond to input signals to turn on outputs. This occurs independent of the host CPU for repeatable timing. The on-delays and off-delays are configurable in increments of 25 microseconds. This can be ideal for enabling multiple cameras and lights using a single trigger sensor.

External terminal block and cable sold separately.


Input Channels 16 (8 sink/source type, 8 sink type)
Input Interface Unipolar photo-coupler
Input Isolation 3,750 Vrms
Input Voltage 24 VDC maximum, 0 - 1.5 logic low, 5 - 24 logic high
Output Channels 16 (sink type)
Output Interface MOSFET, open drain
Output Isolation 3,750 Vrms
Output Voltage 24 VDC nominal, 30 VDC maximum
Output Current 500 mA per channel, continuous duty


Output Timer Resolution 25 µs, for on and off delays


SCSI 68 (Female) Qty 1