Welcome! You are logged in.

Barix IO 12

Universal Modbus/RTU controlled remote IO device, featuring 12 current sourcing outputs and 12 opto isolated inputs

The Barix IO12 is a universal, DIN Rail mountable industrial I/O extension which connects to a host via Modbus/RTU. The inputs/outputs are controlled and read using Modbus/RTU commands via the serial interface Special power savings features keep the active power of the device low even if all relays are activated.

Main Features

  • RS-485 Serial Port (1)
  • Supply Voltage (9-30V)
  • Current sourcing Outputs (12)
  • Optoisolated Inputs (12)


Designed in Switzerland and installed in thousands of locations internationally, the Barix control products have poven themselves as a very reliable, versatile product solving interfacing, data collection and control problems effectively, world wide.


Works with

Technical Specifications


12 solid state current sourcing (thermal and over current protected, max 1.5 A each, max 6 A in total, connector for external power supply, 30 VDC max.



12 opto isolated inputs (5 to 30 VDC), registered (30 msec filter) and counted (<100 pulses/sec)

ESD protected in groups of 4 with separate

power terminals (10 to 30 VDC, polarity protected)


Serial Interface

RS-485 (2-wire), 9'600/19'200 Baud , 8 bit, Even/No

parity, software configurable, Modbus/RTU protocol



Separate detachable screw terminal blocks for

wires AWG 28 – AWG 16 / 0.08 – 1.3 mm²

2 extension connectors (3"/75 mm cable included)


2 LED's for power and RS-485 send indication

Internal connector for default settings jumper


Power supply requirements

12 to 24 VAC / 9 to 30 VDC, 2 Watt max.



high quality plastic, 145 g, DIN-rail mount.

4.13" x 3.34" x 2.83", 105 mm x 85 mm x 32 mm



Min. 207 000h acc. to MIL217F at 25°C ambient temperature

Ethernet Connector



Order number: 2008.9091

Use Cases

Voice Evacuation Systems, 12 in, 12 out

Documents & Downloads


Product Sheets

Contact us about the IO 12

We can help you build the ideal solution. Send us a quick message and we will return your inquiry as soon as possible.

By sending this form you are agreeing to our Terms of Service and PrivacyPolicy.