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Small metal box with four green terminal blocks and an RJ45 port

Brainboxes

Brainboxes ED-004 4 Port Selectable DIO + RS232 network ethernet cable

SKU CH-98KK-77MWE MPN ED-004

Ethernet device adds four selectable digital I/O channels plus an RS232 port for factory floor control

  • 4 digital I/O channels plus RS232 serial for versatile factory automation
  • 80 MHz ARM 32-bit CPU delivers robust real-time control
  • Installs as a COM port ensuring legacy software compatibility
  • Operates from 0°C to 60°C for harsh industrial environments
  • DIN-rail and wall-mount options simplify cabinet installation

Device Overview

The Brainboxes ED-004 is an Ethernet to DIO device that provides four selectable digital input or output channels plus one RS232 serial port. It installs as a COM port on a PC to maintain backwards compatibility with legacy applications. A 32-bit ARM processor running at 80 MHz handles the control tasks for factory floor automation.

Target Users

This unit suits engineers who need to connect 24V factory floor equipment such as motors, fans, relays, pumps, heaters or solenoids to an Ethernet network. It is not for buyers who require more than four digital channels or who need a different serial interface than RS232.

Key Specification

The deciding specification is the combination of four software-configurable digital inputs or outputs and a single RS232 port delivered over a Fast Ethernet RJ-45 connection.

How it compares

Measured against everything we stock in Ethernet & LAN Cables, at today’s prices. Recalculated every night.

Price $139.99
Pricier than about 90% of the 9,945 comparable items (median $14.99).

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Specifications

Product
Brand nameBrainboxes
Model nameED-004
Size & build
Shipping weight0.25 kg
Package size160 × 137 × 48 mm

Questions about this item

How much heat does the ED-004 generate when running continuously at 80 MHz?

The ARM CPU operates at 80 MHz within a 0°C to +60°C temperature range, designed for continuous factory floor operation without active cooling.

What power supply and cabling must I already have to install the ED-004?

You need a 24 V power source for the process side, an RJ-45 Ethernet cable for the network link, and a serial cable for the RS232 port.

Will the ED-004 work with my existing 32-bit legacy application that expects a COM port?

Yes, the device installs as a virtual COM port on the PC, providing complete backwards compatibility for 32-bit legacy software.

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