---
title: "Ethernet to 4 Optically Isolated Inputs / 4 Form C Relay Outputs Embedded Digital Interface"
url: "https://maker.wiznet.io/gemma/resellers/ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/"
markdown_url: "https://maker.wiznet.io/gemma/resellers/ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/md"
type: "VAR: Value-Added Reseller Products"
author: "sealevel.com"
author_url: "https://www.sealevel.com/product/120e-oem-ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "sealevel.com"
original_url: "https://www.sealevel.com/product/120e-oem-ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/"
published: "2022-09-23"
language: "en"
likes: 3
views: 2688
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Ethernet to 4 Optically Isolated Inputs / 4 Form C Relay Outputs Embedded Digital Interface

> Control and monitor four optically isolated inputs and four high-current Form C relay outputs via any 10/100BaseT Ethernet connection with t

Original author: sealevel.com (source: https://www.sealevel.com/product/120e-oem-ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/)

## Article

## **Description**

Control and monitor four optically isolated inputs and four high-current Form C relay outputs via any 10/100BaseT Ethernet connection with the eI/O-120E-OEM digital I/O module. Inputs can range from 5-30VDC and provide 3500VDC (2500VAC RMS) isolation to ground, while the high-current Form C relays can switch up to 6A loads at 200VAC and up to 5A at 60VDC. Each Form C relay has a discrete common and includes normally-open and normally-closed contact connections. Each pair of inputs shares a common and field wiring is simplified via 3.5mm field removable terminal blocks.

The eI/O-120E-OEM receives power via a removable spring-clamp terminal block. The lever-style clamping mechanism requires no tools, which simplifies field installation. The module is powered by your 9-30VDC source, or select from a variety of Sealevel power supply options.

Perfect for applications requiring an embedded Ethernet I/O solution, the OEM module includes 3/4″ metal standoffs that simplifies mounting in your enclosure or cabinet. The metal standoffs also allow you to connect multiple OEM boards together in a stack. Standard operating temperature range is 0C to +70C, while status LEDS show power and I/O activity. Additionally, LEDs on the RJ45 connector display Ethernet link and communication activity.

Communicate with eI/O Ethernet digital I/O modules using industry standard Modbus TCP protocol or use the Sealevel [SeaMAX API](https://www.sealevel.com/seamax-api-documentation/) software libraries from your application program. Sealevel’s [SeaMAX](https://www.sealevel.com/support/software-seamax-windows/) software drivers and utilities make installation and operation easy using [Microsoft Windows](https://www.sealevel.com/support/software-seamax-windows/) operating systems.

The [Sealevel Modbus Connect app](https://www.sealevel.com/support/software-sealevel-modbus-connect-ios/) for iOS allows you to access the registers, coils and discrete I/O of your Sealevel Modbus devices and is available on the App Store. Use the app to remotely access I/O in the field or for testing and troubleshooting during application development. The [Sealevel Mod+ Connect app](https://www.sealevel.com/support/software-sealevel-mod-connect-ios/) is an easy-to-use diagnostic utility that allows you to monitor, test and troubleshoot Sealevel eI/O and SeaI/O modules using your iPhone or iPod touch.

## **Additional information**

| **Family** | eI/O |
| --- | --- |
| **Input Isolation** | 2500 VAC RMS, 3500 VDC |
| **Contact Current DC** | 30 VDC @ 700mA max., (100mA min.) |
| **Contact Operate Time** | 10ms max. |
| **Contact Release Time** | 5ms max. |
| **Contact Voltage** | 60VDC max., 200VAC max., (5VDC min.) |
| **Digital I/O** | Form C Relay Outputs, Isolated Inputs |
| **Dimensions** | 4.2 (L) x 3.2 (W) x 0.8 (H) |
| **Field Wiring** | 16 – 30 AWG |
| **Humidity Range** | 10 – 90% Relative Humidity, Non-Condensing |
| **Contact Current AC** | 6A max. |
| **Input Impedance** | 6.2 K Ohms (in series) |
| **Input Range** | 5-30 VDC |
| **Host Interface(s)** | Ethernet |
| **OEM** | Yes |
| **Operating Temperature** | 0°C to 70°C (32°F to 158°F) |
| **Output Power** | DC 240W, AC 300 VA |
| **Output Type** | SPDT Form C relays |
| **# of Ports** | 4/4 |
| **Power Requirement** | 9-30 VDC @ 5W |
| **RoHS Compliant** | Yes |
| **Storage Temperature** | -50°C to 105°C (-58°F to 221°F) |

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Source: https://maker.wiznet.io/gemma/resellers/ethernet-to-4-optically-isolated-inputs-4-form-c-relay-outputs-embedded-digital-interface/