PC/104 16 Optically Isolated Input Portholes Kit

Part: 3720-KT   Model: DIO-104.OPTO Kit

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The 3720 PC/104 digital I/O interface provides 16 optically isolated inputs for connection to devices including sensors, switches, push buttons, and other user inputs. The inputs can sense both AC and DC voltage while providing optical isolation, which eliminates spikes and surges present in industrial environments.

Includes 3720 PC/104 board, ribbon cable, and Portholes™ mounting plate with removable screw terminals for installation in an enclosure.

Note: This item has a minimum order quantity (MOQ) of 25 units. Please contact your sales representative with any questions.


Additional information

Board Connector

40-Pin Header



Digital I/O

Isolated Inputs

Extended Temperature

Call for Options

Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Input Range

3-13 VDC

Host Interface(s)


Number of Inputs/Outputs


Operating Temperature

0°C to 70°C (32°F to 158°F)

Plate Connectors

Screw Terminals

# of Ports


Power Requirement

+5V @ 125mA

Storage Temperature

-50°C to 105°C (-58°F to 221°F)

16 optically isolated AC or DC inputs
Socketed dip resistor allows user configurable input range up to +24V
Power (+5V and +12V) and ground provided on connector
Right-angle connector available for OEM opportunities, 40-pin vertical header standard
Includes mounting plate with screw terminals and ribbon cables for installation in Relio enclosure


Manual: 3720


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