The Portas System network is an advanced communication system designed specifically for underground environments, offering reliable and efficient connectivity for various applications.

This system is composed of multiple WireNodes, each acting as a crucial component in creating a robust and versatile communication network.

The network can be easily scaled by adding or removing WireNodes as needed, providing flexibility for various project sizes and requirements.

The ability to integrate with a PC for network management offers additional versatility, especially in areas where intrinsically safe devices are not mandatory.

Unlike traditional systems such as the leaky feeder, the Portas network does not require any existing infrastructure, specialized cables, or signal amplifiers. This significantly reduces the initial setup cost, making it an affordable solution for creating a basic communication network. The installation process is straightforward and quick, allowing for rapid deployment and scalability. The system can be seamlessly integrated with the SWAR-2EX, enhancing its functionality. For instance, if a mine is drilling a new tunnel, BatNodes can extend the existing network to the new area without the need for additional infrastructure.

The Portas system also excels in durability, with its rugged design capable of withstanding harsh underground conditions. The device’s housing provides a high level of protection, ensuring reliable performance. Furthermore, unlike leaky feeder systems, the Portas network requires minimal maintenance, offering a cost-effective and efficient communication solution for underground operations.


The system consists of the following elements:

  • fresh air base station (optional)— used to communicate with rescue operation office on the surface and to communicate with the rescue teams by the wireless temporary infrastructure set up by battery radio nodes; it allows monitoring of the operation and position of all components of the system, also providing radiophones tracking and many alarming functions
  • battery radio node — used to form temporary wireless network infrastructure; provides straightforward setup just by turning on and placing a node approximately every 50m (50 steps); the network is not affected by enabling or disabling of any node, and if fully charged, it operates continuously for 5 days.
  • radiotelephone — is used for audio communication with fresh air base operators or with other rescuers equipped with radiotelephones; the communication discipline can be arranged according to specific needs and legal requirements; radiotelephone provides many other rescue operations and functions