KGB Commercial Heating has awarded fellow UK firm KeySim a contract to provide secure fixed IP IoT SIM connectivity for its building management systems (BMS).

This should enable secure remote access to resource data management (RDM) control systems while reducing unnecessary engineer site visits.

KeySim provides IoT SIM cards and managed connectivity. The KGB contract will use its RDM touch supervisor controllers.

The deployment combines KeySim’s private fixed IP IoT SIM service with a Teltonika RUT200 industrial 4G router, providing secure, resilient remote access to BMS used to monitor and control commercial heating, ventilation and other critical building services.

The managed IoT SIM platform provides resilient connectivity across the UK’s four major mobile networks – Vodafone, O2, EE and Three – helping maintain reliable communications even where network conditions vary between locations.

Unlike standard fixed IP mobile services, KeySim delivers connectivity through its own managed private breakout infrastructure, allowing each deployment to operate with a private fixed IP address that is not accessible from the public internet.

Access to the BMS is only possible by authorised users who authenticate over a secure VPN. This architecture provides secure remote connectivity while helping protect critical building infrastructure from unauthorised internet access. It is suitable for BMS, HVAC controls, commercial heating, refrigeration monitoring, industrial automation, energy management and other remote IoT applications where security and reliability are essential.

By securely connecting the RDM control system through a RUT200 router (www.teltonika-networks.com/products/routers/rut200) using managed IoT connectivity, engineers can remotely monitor equipment, investigate alarms, update configurations and carry out diagnostics without travelling to the site. This reduces operational costs, improves response times and allows maintenance teams to resolve many issues remotely before a site visit becomes necessary.

“Secure remote access was an essential requirement for this project,” said Gavin Fletcher of KGB Commercial Heating (www.kgbcommercialheating.com). “We wanted a solution that would allow our engineers to connect safely to our BMS without exposing them to the public internet. KeySim’s private fixed IP IoT SIM gives us exactly that. By securely connecting through a VPN, we can remotely diagnose and manage systems, avoiding many routine site visits while providing a faster and more efficient service for our customers.”

Graham Robinson, managing director of KeySim (www.keysim.co.uk), added: “We’re delighted to be supporting KGB Commercial Heating with secure connectivity for their BMS installations. BMS applications demand reliable, resilient and secure communications. Our multi-network IoT SIMs provide access to Vodafone, O2, EE and Three, while our private breakout platform delivers private fixed IP connectivity that keeps devices off the public internet. It’s ideal for organisations that need secure remote access to critical infrastructure.”