Precision You Can Trust
NABL-Accredited Calibration | Available on Request
Control and monitor 16 optically isolated inputs and 8 high-reliability Form C relays with the SeaI/O-420M-OEM. Designed for seamless Modbus RTU communication, it’s ideal for robust industrial automation and digital I/O applications..
The SeaI/O-420M-OEM provides a powerful solution for industrial control, automation, and monitoring applications. It features 16 optically isolated inputs that support a wide range of voltages (5–30VDC) and 8 Form C relays rated for up to 60VDC @ 2A. Each group of I/O lines shares a common connection for simplified wiring, facilitated by standard removable terminal blocks.
Communication is handled via RS-485 using the industry-standard Modbus RTU protocol or Sealevel’s proprietary SeaMAX API, allowing flexible integration into a wide range of systems. The device is powered by 9–30VDC and is designed to operate reliably across a standard industrial temperature range.
Engineered for OEM applications, the compact size and enclosure-ready format make it perfect for embedded systems or space-constrained control panels. Compatible SeaI/O expansion modules allow users to scale I/O capabilities across multiple nodes with daisy-chain connectivity.
16 optically isolated digital inputs (5–30VDC)
8 SPDT Form C relay outputs (up to 60VDC @ 2A)
RS-485 Modbus RTU communication support
Easy wiring via removable 3.5mm terminal blocks
SeaMAX software support for Windows & Linux
Expandable with up to 246 SeaI/O modules
Operating temperature: 0°C to 70°C
Compact OEM board for integration into custom enclosures
Host Interface: RS-485
Protocol: Modbus RTU
Inputs: 16 optically isolated (5–30VDC)
Outputs: 8 Form C relays (SPDT, up to 60VDC @ 2A)
Power Requirement: 9–30 VDC @ 2.0W
Operating Temperature: 0°C to 70°C
Storage Temperature: -50°C to 105°C
Humidity: 10–90% RH, non-condensing
Form Factor: OEM Board with Enclosure
Dimensions: 7.5 in (L) x 5.0 in (W) x 0.8 in (H)
Software Support: SeaMAX drivers (Windows & Linux)