Barionet M44 - Quick Install Guide
Congratulations on buying the Barionet M44.
The Barionet M44 is a fully programmable I/O device server from Barix based on Linux. It features most common IO interfaces such as USB, digital inputs and relays. It also is IPv4 capable. Supporting multiple communication protocols, the M44 can be used in different applications such as automation, building control, public transport and many more.
This document will give you a general introduction to the Barix Barionet M44, helping you to run a basic setup of the device.
If you have any further questions, please write us at support@barix.com
Safety Precautions.
Please make sure to first read the safety information in order to avoid hazards.
Table of Contents
1. Package Content
Barionet M44 device
16-pin female terminal block
2-pin female terminal block
Rail adaptor
Sticker with MAC address and Password information
2. Hardware Functionality

USB ports x2
Use this to connect optional USB compatible accessories like https://help.barix.com/barionet/barionet-ux8 .
RS232 Serial interface
RS-232 output levels: ±5V to ±7V (internally generated)
RS-232 input tolerance: Up to ±15V
pin# | description |
1 | NC |
2 | RxD - Receive Data |
3 | TxD - Transmit Data |
4 | NC |
5 | GND |
6 | NC |
7 | RTS - Request To Send |
8 | CTS - Clear To Send |
9 | NC |
Function LEDs:

S1 CPU status LED | RED blinking: Startup. |
S2 IO status LED | RED blinking: Startup. |
IN1 – 4 Input LEDs | BLUE solid: Input is activated. |
REL1 – 4 Relay LEDs | GREEN solid: Relay is activated. |
X1, X2 | Currently not in use. |
Reset button
Use a pointed tool to press this button and perform a “Reboot” or “Reset to Factory Defaults”. See Section 9 for full explanation.
Power
Connect a 9..30VDC/ 12W (max) power supply using the supplied 2-pin terminal block.
pin# | description |
1 | power In + (9..30VDC) |
2 | power In - (GND) |
16-pin screw terminal block
Use the supplied 16-pin female terminal block to make connections.
4 analog/digital inputs with configurable pull-ups
4 relay outputs (0.5A 125VAC / 1A 30VDC) Normally Open
pin# | Name | description |
1 | IN1 | Digital Input #1 |
2 | IN2 | Digital Input #2 |
3 | IN3 | Digital Input #3 |
4 | IN4 | Digital Input #4 |
5 | GND | Ground |
6 | GND | Ground |
7 | CM1 | Relay #1 COM |
8 | NO1 | Relay #1 NO |
9 | CM2 | Relay #2 COM |
10 | NO2 | Relay #2 NO |
11 | CM3 | Relay #3 COM |
12 | NO3 | Relay #3 NO |
13 | CM4 | Relay #4 COM |
14 | NO4 | Relay #4 NO |
15 | VIN | Positive |
16 | GND | Negative |
Ethernet / POE (RJ45)
Ethernet 10/100 Mbps port with support for IEEE802.3af POE standard
3. Device Mounting
Slide the device upwards onto the DIN rail. Push it up and towards the rail until it snaps onto the upper rail edge.
Before powering the unit, please read this Quick Installation Guide.
4. Connecting power
You can power the Barionet M44 device using a power supply or POE:
Using a Power Supply.
Use the supplied 2-pin terminal block to connect a DC voltage power source of 9..30 VDC, 12W (max) to the Power input.
Polarity matters. Ensure correct connection with the PSU.
Using POE (Power Over Ethernet)
The Barionet M44 can also be powered by POE supporting the IEEE 802.3af standard. Simply connect a LAN cable from a POE capable network switch to the unit Ethernet plug.
When powered up, the CPU's Status LEDs will start blinking, indicating that the device is starting up.
5. Connecting via Ethernet
Plug an Ethernet cable from your network switch to the Barionet M44.
The Barionet M44 is configured to be a DHCP Client by default. Check the DHCP Lease table of your DHCP server to retrieve the assigned IP address according to the given MAC Address. Note the IP address.
You can also use the Barix “Discovery Tool” (see next Chapter ) to find the device IP Address.
6. Using the Barix Discovery Tool
The Barix Discovery Tool is a convenient Java-based application designed to locate Barix devices on your local network. It allows you to identify the IP address of any Barix device using its MAC address, which can be found on the back of the device. The tool can also detect devices with incorrect or missing IP configurations and enables you to set their IP address.
Prerequisites:
Java Runtime Environment (JRE) must be installed.
Ensure that the Windows firewall does not block traffic (UDP port 30718).
Compatible with Barix devices running firmware from 2012 or later.
Only detects Barix devices within the same local LAN.
Download the Discovery Tool and instructions from this page.
7. Configuration
The M44 can be configured using the Web Interface. Use your web browser in order to connect to the determined IP Address as described:
Open your browser.
In the address bar, type: <http://<IP> address>/ where <IP address> is the IP address you retrieved previously.
For example, if your Barionet is assigned to IP address 192.168.0.6, enter the following in the address bar: http://192.168.0.6/
Your browser will display the Barionet M44 login page as follows:

Enter your Password information which can be found on a sticker on the backside of the device.
The access is performed over HTTP connection by default.
Barix highly recommends to secure your device with a strong password to protect access to the web configuration interface. It is possible to change the default password in the SETTINGS → SECURITY section of the web interface.
After signing in, the Barionet M44 Web Interface offers the follwing:

Barionet M44 is based on Barix’s Flexa technology, which offers the possibility to build custom applications on a base firmware and distribute them via cloud based technologies.
At the moment of writing this manual, Flexa capabilities are not being marketed on the Barionet M44, so the most relevant sections to consider for users are: Settings, SNMP, Status, Defaults, Logs, Update and Reboot.
8. Firmware Update
Barix releases constantly firmware to keep up to date with security standards, adding new features and fixing bugs. Make sure to check new firmware available at this link.
Download the latest update package for your device to your local drive. The package is delivered as a .tar file.
Please make sure you are downloading the right firmware for the Barionet M44.Check the current version on the Barionet M44 device. The easiest way to do this is to use the Web Interface.
Go to the “Update” tab on the Web Interface. In“Firmware” you can find the information about the current firmware version.Click the link: “Please click here to start update”. You enter the System Update page:
Click on “Choose file”
Change the current directory of your local drive to the folder where you downloaded the update .tar file and select it (do not untar the file or extract the archive)
Click on “Upload”
The update will begin after loading. Please be patient during the update and do not disconnect the Power Supply. The software update can take several minutes. Once the update process has finished successfully the device will reboot and the new firmware will be started.
9. Reboot and Reset Factory Defaults
Reboot
Using the Reset button:
Press the "RESET" button for 3..5sUsing the Web Interface:
Go to the “Reboot” tab.
Press the “Reboot the device” button.
NOTE: The “Reboot the device” button will be grayed if the "Reboot" function is disabled from the Security Settings page.
Reset to Factory Defaults
Using the Reset button (full reset)
A local user can completely reset the device to factory defaults (Hardware Reset) including network settings.
Press the RESET button of the device during approximately 10 seconds. using a pointed tool. The device will reboot and apply default settings.Using the Web Interface (partial reset):
Go to the “Defaults” tab.
Click on "Reset factory defaults" to revert all settings except "Network settings" to the factory defaults.
When the message “Settings successfully reverted to factory defaults.” the procedure is completed.
NOTE 1: The “Reset factory defaults” button will be grayed if the "Reset factory defaults" function is disabled from the Security Settings page.
10. Compliance and further Information
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on. The user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the device into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Safety and precaution recommendations apply. Find them in the download section at
http://www.barix.com

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For questions that are extending the documentation, feel free to contact us on:
International: +41 434 33 22 22
USA: +1 866 815 0866
Email: support@barix.com
All information and the use of this product including all services are covered under the Barix Terms & Conditions and our Privacy Policy. Please follow the Safety and Precaution Recommendations. Barix is a ISO 9001:2015 certified company. All rights reserved. All information is subject to change without notice. All mentioned trademarks belong to their respective owners and are used for reference only.