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8510 SeaRAQ 16 Channel Isolated Digital Inputs (3-30 VDC)
8510 SeaRAQ 16 Channel Isolated Digital Inputs (3-30 VDC)

Part# 8510


SeaRAQ 16 Isolated Digital Inputs (3-30 VDC)


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SeaRAQ™ I/O expansion modules provide unprecedented expansion capabilities for Sealevel Relio R3 and Relio R4 industrial computers. The SeaRAQ 8510 expansion board adds 16 channels of isolated digital inputs designed for 3-30 VDC. The inputs are compatible with TTL signal levels.

To protect the host computer from harmful voltage spikes commonly found in industrial environments, the 8510 provides 1500 VAC isolation. Applications include connecting sensors, switches, push buttons, and other low voltage inputs. For easy, reliable field wiring, the board uses removable, high-retention terminal block connectors.

Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems. Communicate using industry standard Modbus RTU protocol or use the Sealevel SeaMAX API software libraries from your application program.

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.
Brand/Family SeaRAQ
Modbus Yes
Digital I/O Isolated Inputs
RoHS Compliant Yes
Number of Inputs/Outputs 16 Isolated Inputs
Input Range 3-30 VDC (24 VDC Rated Voltage)
Compatible with TTL Signal Levels
Input Current 7 mA
Input Isolation 1500 VAC RMS (Field-to-Logic)
Field Wiring 16-30 AWG
Plate Connectors High-Retention, Removable Terminal Blocks
Operating Temperature 0 - +70C
Extended Temperature Call for Options
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
Dimensions PCB is 6.00" (L) x 4.35" (W)
  • • Digital expansion module with 16 isolated DC digital inputs
  • • Inputs are compatible with 3-30 VDC input range and can be used with TTL level signals
  • • 1500 VAC field-to-logic isolation
  • • Industry standard Modbus RTU interface
  • • Input power provided via backplane connector
  • • Field wiring is simplified via removable 3.5mm terminal blocks compatible with 16-30 AWG wire
  • • Includes 20-position, removable, high-retention Phoenix terminal blocks
  • • Sealevel SeaMAX software supports Microsoft Windows and Linux operating systems

The Digital I/O Handbook (*Free)
The Digital I/O Handbook (*Free)


The Digital I/O Handbook
The Digital I/O Handbook


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