SeaI/O-410S (SeaIO)
SeaI/O-410S (SeaIO)

Part# 410S


RS-232 Modbus RTU to 16 Isolated Inputs / 16 Reed Relay Outputs


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The SeaI/O-410S is a RS-232 Modbus RTU interface to 16 optically isolated inputs and 16 Reed relay outputs. Inputs can range from 5-30VDC, while the Reed relays provide long-life switch closures well suited to low current devices. Inputs and outputs are grouped into four-bit segments that each share a common for easy wiring via removable 3.5mm terminal blocks. The SeaI/O-410S is powered from your 9-30VDC source, or select from a variety of Sealevel power supply options.

Communicate with the SeaI/O-410S using industry standard Modbus TCP protocol or use the Sealevel SeaMAX API software libraries from your application program. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.

Expand your I/O network with SeaI/O N-series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.

Get a jumpstart 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.
Host Interface RS-232
# of Ports 16/16
Brand/Family SeaI/O
Digital I/O Isolated Inputs, Reed Relay Outputs
RoHS Yes
Number of Inputs/Outputs 16 Inputs / 16 Outputs
Input Isolation 300V
Input Range 5-30 VDC
Contact Voltage 60VDC max.
Contact Current 500mA max.
Contact Operate Time 0.5ms max.
Contact Bounce Time 0.5ms max.
Contact Release Time 0.2ms max.
Power Requirement 9-30 VDC @ 1.6W
Operating Temperature 0 - +70C
Extended Temperature Call for Options
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
Dimensions 7.5 (L) x 5.1 (W) x 1.3 (H)
  • • RS-232 Modbus RTU interface
  • • 16 SPST Form A Reed relays
  • • 16 optically isolated inputs
  • • Removable screw terminals simplify field wiring
  • • Input power via terminal block or modular connector
  • • DIN rail or table mount
  • • Sealevel SeaMAX software supports Microsoft Windows and Linux operating systems

DAQFactory Express
DAQFactory Express

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SeaI/O RS-485 Interconnect
SeaI/O RS-485 Interconnect


Spring Clamp Terminal Block Kit
Spring Clamp Terminal Block Kit


Modular Adapter - DB9 Female to RJ45
Modular Adapter - DB9 Female to RJ45


SeaI/O Expansion
SeaI/O Expansion


Flush Mount Bracket
Flush Mount Bracket


Universal Mounting Bracket
Universal Mounting Bracket


Side Mount Bracket
Side Mount Bracket


DIN Rail Mounting Clips
DIN Rail Mounting Clips


Proudly Made in the USA
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