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Part# 570N-OEM


8 16-bit A/D, 8 Isolated Inputs, 8 Form C Relay Outputs SeaI/O Expansion Module

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The SeaI/O-570N-OEM, designed using the Linear Technology LTC1867 A/D chip, adds eight single-ended 16-bit analog inputs, eight optically isolated inputs and eight Form C relay outputs to your SeaI/O network.

Compatible with all SeaI/O base units (Ethernet, USB, RS-485, RS-232), the SeaI/O-570N-OEM easily connects using an RS-485 input. Cabling is accomplished via the RJ45 pass-through connector or removable screw terminals. RS-485 line conditioning allows easy configuration of termination and pull-up/pull-down resistors via external dipswitches.

All SeaI/O N-series expansion modules ship with four metal standoffs with nuts. The metal standoffs allow you to connect multiple SeaI/O OEM boards together in a stack. The optional CA239 interconnect cable can be used to connect SeaI/O OEM boards together via the RJ45 pass-through connectors, providing an easy method to cascade RS-485 signals and power from one module to the next. Alternatively, use inexpensive CAT5 cabling to pass data signals between SeaI/O OEM boards to create a distributed network.
Call for Price No
Brand/Family SeaI/O
Host Interface(s) RS-485
# of Ports 8/8/8
Digital I/O Isolated Inputs, Form C Relay Outputs
Analog I/O A/D Inputs
RoHS Compliant Yes
Number of Inputs/Outputs 16 Inputs, 8 Outputs
A/D Chip Linear Technology LTC1867
A/D Inputs 8 Single-Ended
A/D Resolution 16-bits
A/D Range +/-5V, +/-15V
Input Isolation 2500 VAC RMS, 3500 VDC
Input Range 5-30 VDC
Input Impedance 6.2 K Ohms (in series)
Output Specification 24 VDC @ 1A
Contact Voltage 30VDC max.
Contact Current 2A max.
Switching Capacity 24W
Contact Operate Time 5ms max.
Contact Bounce Time 7ms max.
Contact Release Time 5ms max.
Field Wiring 16 - 30 AWG
Power Requirement 9-30 VDC @ 2.3W
Power Connector 1.3mm Barrel, Terminal Block, RJ45 Pass-Through
Operating Temperature -20 - +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)
  • • Quick connection to SeaI/O devices using RJ45 connector or removable screw terminals
  • • 8 single-ended 16-bit analog inputs
  • • 8 optically isolated inputs
  • • 8 Form C relay outputs
  • • Removable screw terminals simplify field wiring
  • • Input power via terminal block or modular connector
  • • Includes four 3/4 inch metal standoffs with nuts

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


Spring Clamp Terminal Block Kit
Spring Clamp Terminal Block Kit


24 VDC 12W PSU
24 VDC 12W PSU



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


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


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