36 bidirectional I/O channels – Four 8-bit and two 2-bit ports
Digital I/O control
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Jupiter Instruments www.jupiteri.com
Updated on 3/13/20
or Ph: 949-716-0154
USB Digital I/O Module
Two Special Function Ports (SFP). Programmable functions include:
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USB Multifunction Digital
I/O Module - Isolated
The JI-4040 module is a versatile, easy-to-use device for adding universal digital I/O capability to a
computer system via a USB connection. The module is comprised of 36 bidirectional I/O channels
and 2 Special Function Ports (SFP). The SFP can be software programmed as a variable duty-cycle
clock/pulse generator, event counter, or interval/pulse timer. The I/O is selectable to interface 5.0 V,
3.3 V, 2.5 V, or 1.8 V systems. Host to module isolation eliminates ground-loops and provides
protection from noise and switching transients on external signals. The JI-4040 is available as either a
desktop unit or low-cost OEM board.
The JI-4040 includes a Windows 2000/XP/7 compatible software package. This contains sample
programs and source code written in Visual C#, and an application program that provides access to
all I/O ports and control of the SPFs.
The JI-4040 can be customized to meet specific customer requirements. In many cases the cost is
$0. However, minimum quantities may apply. Please contact sales for details.
Selectable I/O voltage: 5.0V, 3.3V, 2.5V, 1.8V, and Adj.
High-current I/O drive current: +/-32 mA @ 5.0 V, +/-24 mA @ 3.3 V
500Vrms Isolation voltage rating
USB USB 2.0 compatible
Available as either a desktop unit or stackable, low-cost OEM board.
Power proved via USB-bus*
*Optional power supply required if combined I/O source current exceeds 300 mA
Selectable pull-up/pull-down resistor
Test App Screen Shot
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