Underground Networking & Communication Solutions

In the world’s most demanding underground environments, safety and communication are critical. NLT Digital Solutions designs and delivers advanced networking, communication, and control ecosystems purpose-built for coal mining, hard rock operations, tunnelling projects, and other harsh industrial applications.

From methane-rich coal seams to deep hard rock mines and complex infrastructure tunnels, our rugged, scalable systems are engineered to perform where reliability matters most. Intrinsically safe network infrastructure, real-time tracking technologies, and integrated communication platforms form the backbone of safer, more connected underground operations.

By combining hardened network hardware with the powerful Symphony software suite, NLT Digital Solutions enables messaging, monitoring, tracking, control, and data-driven decision-making across the entire site. The result is greater situational awareness, enhanced workforce protection, and measurable gains in operational efficiency.

Partnering with clients worldwide, NLT Digital Solutions delivers complete underground connectivity solutions built for performance, longevity, and the evolving demands of modern industry.

COAL

Working directly with coal is literally dirty work. Additionally, it has inherent dangers from gases like methane, and explosions can occur when falling rocks cause sparks. We design our coal mine networks with these hazards in mind, ensuring all applicable equipment is intrinsically safe (IS), while still providing the most reliable and durable communication solution for your mine. Our focus is very simple: to develop and deploy the most current and adaptive technologies to make coal mines safer and more efficient.

Tunnelling

NLT Digital Solutions is a proud industry expert in the design and installation of flexible communication and tracking systems for the underground tunnelling industry on construction and maintenance projects like roadways, subways, railways, hydro, and service/utility tunnels.

Our engineers will work with you to design a solution that’s based on your individual needs and requirements – we offer the industry’s most reliable and durable communication solutions.

NLT’s goal with any project is to maximize the safety, productivity and profitability of our customers

Hard Rock

Hard rock mining is one of the foundations of today’s global economy. Mining natural resources is difficult and hazardous work. Companies must strive to reduce their cost per tonne while still providing a safe and productive working environment.

More and more mines are recognising the role that technology, networking and communication play in mine safety and productivity. The N-CONNEX product line was designed to supply hard rock mines with rugged and cost-effective network infrastructure. N-CONNEX provides a scalable, plug and play network solution that is suitable for your mine from the smallest start-up to the largest operation.

NLT is eager to demonstrate our experience in designing, manufacturing, deploying, and supporting a scalable communication and networking solution that will immediately generate value for your investment – and peace of mind for your miners.

Software

NLT Digital Solutions has been developing cutting edge industrial software for over a decade. Our Symphony software suite delivers advanced productivity, safety, control, and monitoring capabilities and is fully integrated with our range of hardened underground networking equipment.

Key capabilities include real-time personnel tracking, secure communication tools, ventilation and environmental control applications, and operational monitoring functions. From sending private messages to underground workers, to managing evacuation events or viewing graphical histories of gas levels and site conditions, Symphony provides industry-proven functionality built for mission critical mining operations.

The intuitive, user-friendly graphical interface is accessible to authorised users, enabling rapid navigation of underground site layouts where operational data is overlaid directly onto mine and tunnel plans for immediate situational awareness and decision-making.