ISA 16 Reed Relay Output / 16 Isolated Input Digital Interface

Part: 3093   Model: DIO-32B

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The 3093 ISA digital I/O interface card provides 16 optically isolated inputs and 16 Reed relay outputs. The inputs protect the PC and other sensitive equipment from spikes and ground loop current that can be generated in industrial environments, while the outputs provide high quality, long-life, low-current (10 Watt maximum), dry contact switch closures. Reed relays are well suited for low current applications. The relays are normally open, and close when energized.

The inputs on the 3093 are rated for 3-13V. For 10-30V inputs, order the 3093H.

Sealevel’s SeaIO Classic software drivers and utilities make installation and operation easy using Microsoft Windows operating systems.

Get a jump start on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.

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


Additional information

Board Connector

One DB-37MOne DB-37F

Contact Current

500 mA

Contact Voltage


Digital I/O

Isolated Inputs, Reed Relay Outputs

Extended Temperature

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Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Input Isolation

400V (Optical)

Input Range

3-13 VDC

Host Interface(s)


Number of Inputs/Outputs

16 Inputs16 Outputs

Operating Temperature

0°C to 70°C (32°F to 158°F)

# of Ports


Power Requirement

+5V @ 800mA +12V @ 50mA

Storage Temperature

-50°C to 105°C (-58°F to 221°F)

16 Reed relay outputs (SPST)
16 optically isolated inputs
Highly reliable 10VA DIP Reed relays
Power (+5V and +12V) and ground provided on connector
Supports interrupts 2/9 – 7
Selectable port addressing (100H – 3FFH)
SeaI/O Classic software supports Windows 98, ME, NT, 2000, XP and Vista operating systems
Software support for DOS, Linux, Windows 3.1 and Windows 95 available


Datasheet: 3093


Manual: 3093


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