How the new Tosibox 300 Series provides secure and simple remote access

June 27, 2024
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How the new Tosibox 300 Series provides secure and simple remote access-0

Did you know that with Tosibox devices you can set up a secure VPN tunnel in just a few minutes without in-depth IT knowledge? In this article, you will learn how the Tosibox 350 and 375 models can help you establish and manage secure remote access using various connection methods and advanced security features. You will get to know the main functions of the models, their differences, and step-by-step instructions on how to start working with these devices.

Table of Contents

Tosibox 350 and 375 Overview

The Tosibox 300 series stands out with an industrial touch. In my opinion, the Tosibox 350 and 375 Lock models are excellent additions for ensuring secure remote access. Thanks to the DIN rail mounting, narrow housing design, and industrial type 2-pin power socket connection, they are convenient to install in any control panel. Additional functionality is provided by the integrated digital I/O (2 digital inputs, 2 relay outputs) that can be configured via the Tosibox key software.

Tosibox L300 Tosibox L375

Tosibox 350

Tosibox Lock 375 Tosibox 350 is a compact, all-in-one connectivity device that provides stable remote access worldwide. It offers four LAN Ethernet ports, digital I/O support, and up to 10 Mbps VPN throughput. The device features built-in WiFi and TosiOnline automatic reconnection function.

Tosibox 375

The Tosibox 375 is similar to the 350 model but offers an additional internal LTE modem, which ensures global connectivity with external antennas. This is ideal for situations where mobile connectivity is required. This model supports up to 50 simultaneous VPN connections and 10 Mbps throughput.

Getting Started with Tosibox Devices

Establishing a Connection

  1. Connecting the power supply: Connect a 5-35 V DC power supply to the Node and wait 1 minute.
  2. Connecting the Tosibox Key: Insert the Key into the USB port of the Node. When the LED indicator goes off (after approximately 10 seconds), the connection is complete.
  3. Establishing an internet connection: Connect the WAN port of the Node to an internet source using an Ethernet cable. Check that the INTERNET LED is lit.

Setting Up an Internal Modem

  1. Setting up the antenna: Install the antenna.
  2. Inserting the SIM card: Insert the SIM card.
  3. APN configuration: Configure the APN settings according to your mobile operator's requirements.

Setting Up a WiFi Connection

  1. Setting up the antenna: Attach the WLAN antenna.
  2. Configuring the network: Set the WLAN network parameters in the device interface.

Tosibox VPN

Model Comparison

Parameter Tosibox 350 Tosibox 375
VPN Throughput Up to 10 Mbps Up to 10 Mbps
Simultaneous VPN Connections Up to 10 Up to 50
Number of LAN Ports 4 4
3G/4G Modem No Yes
WiFi Yes Yes
Digital I/O 2 inputs, 2 outputs 2 inputs, 2 outputs
Protection Class IP30 IP30
Operating Temperature -35 °C … +75 °C -35 °C … +75 °C
Power Consumption Maximum 10W Maximum 10W
DIN Rail Mounting Yes Yes
Dimensions 145 mm x 114 mm x 45 mm 145 mm x 114 mm x 45 mm
Weight 625 g 630 g


The Tosibox 350 and 375 models offer a wide range of applications in various industries:

  • Factory and building control systems: Remote debugging and programming of PLCs and HMIs.
  • SCADA systems and cloud platforms: Remote access to PLC and HMI data.
  • Data exchange: Between remote databases.
  • IP cameras and other network devices: Remote monitoring and control.
  • Cyber-physical systems: Building and managing a secure OT infrastructure.


The Tosibox 350 and 375 are excellent devices for ensuring secure remote access. They are easy to set up and provide a stable connection with minimal technical knowledge. Choose the model that best suits your needs and enjoy the benefits of secure and efficient remote access. Choose Tosibox 350 or Tosibox 375 and enhance your remote access security today.

Check out the products below or contact us to learn more!

Code: TB-TBK2
In stock: 5+ pcs
256.00 EUR (w/o VAT)
Code: TB-TBL350
In stock: 2 pcs
580.00 EUR (w/o VAT)
Code: TB-TBL375
In stock: 1 pcs
715.00 EUR (w/o VAT)
In stock: 0 (on request)
Contact the manager
Pēteris Žerbiņš
Pēteris Žerbiņš
PLC / HMI / Interface Specialist
+371 2860 3305

Tosibox Lock 350 atasheet (pdf)

Quick Start Guide Tosibox Lock 300 series (pdf)

Tosibox Lock 375 atasheet (pdf)