Part# 463M-OEM


RS-485 Modbus RTU Interface to 96 Channel TTL Digital Interface


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The SeaI/O-463M-OEM is an RS-485 Modbus RTU interface module providing 96 channels of buffered drive digital I/O. The interface module addresses the 96 channels of I/O as 12 eight-bit ports, each programmable as input or output. Using standard 50-pin IDC ribbon cables, connect up to four industry standard relay racks for PC based control and automation of equipment including sensors, switches, security control systems, and other industrial automation systems. A metal strain relief bracket is included to secure the cables after installation. The SeaI/O-463M-OEM is powered from your 9-30VDC source, or select from a variety of Sealevel power supply options.

Communicate with the SeaI/O-463M-OEM 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 OEM boards 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.

To simplify ribbon cable installation, a printed copy of the Ribbon Cable Installation Instructions is included with all SeaI/O-463-OEM orders.

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-485
# of Ports 96
Brand/Family SeaI/O
Digital I/O TTL I/O
RoHS Yes
Number of Inputs/Outputs 96 TTL
Output Specification Sink up to 64mA
Source up to 32mA
Output Power +5V @ 1A (5W) max.
Power Requirement 9-30 VDC @ 2.0W
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 5.0 (W) x 0.8 (H)
  • • RS-485 Modbus RTU interface
  • • 96 channels of buffered TTL I/O
  • • Each 8-bit port individually configurable as input or output
  • • Four 50-pin industry standard solid-state relay rack connectors
  • • Status indicator LEDs for Communication, Fault, and Power
  • • Input power via terminal block or modular connector
  • • Includes four 3/4 metal standoffs with nuts
  • • 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


Terminal Block
Terminal Block


SIO-485.LPCI Kit
SIO-485.LPCI Kit


50-Pin IDC Ribbon Cable
50-Pin IDC Ribbon Cable


50-Pin IDC Ribbon Cable
50-Pin IDC Ribbon Cable


50-Pin IDC Ribbon Cable
50-Pin IDC Ribbon Cable


Modular Adapter
Modular Adapter


Relay Rack - 8-Position Discrete
Relay Rack - 8-Position Discrete


Proudly Made in the USA
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