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Highlights
- Kavach 4.0 supports direct interfaces with electronic interlocking and helps improve safety in poor visibility, including dense winter fog.
- Potential railway applications for 5G Standalone include signalling, push-to-talk, onboard video surveillance and predictive maintenance.
- The integration supports work towards the Future Railway Mobile Communication System (FRMCS). Higher train speeds within the same operational section remain an area for evaluation.b
Andrew Bonwick
Vice President of Product Development at Relm Insurance
Madhav Sheth
CEO of Ai+ Smartphone
Stephen Rose
CEO Render Networks
Ericsson and HBL have completed integrating Kavach 4.0 with a 5G Standalone (SA) network in a Hyderabad laboratory. The work brought HBL’s train protection technology and Ericsson’s 5G SA network together in a controlled environment, where the companies could check whether the two systems work together. It forms part of a broader effort to evaluate 5G for railway communications as the sector moves towards the Future Railway Mobile Communication System (FRMCS).
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Key Highlights
- Ericsson and HBL integrated Kavach 4.0 with a 5G Standalone network at HBL’s R&D lab in Hyderabad.
- Kavach 4.0 is India’s indigenous, SIL-4-certified automatic train protection system. It continuously supervises train movements to help prevent collisions and trains passing stop signals.
- The lab setup will help the companies assess how Kavach and 5G work together and evaluate network performance for railway applications.
The integration also gives the companies a platform to evaluate railway service performance, which matters because the same communications network could serve several applications with different demands, from exchanging signaling data to carrying live video from a train.
Also Read: IMC 2026: Ericsson Scales Up AI-Ready Antenna Manufacturing in India
What Kavach 4.0 Does
Kavach 4.0 is India’s indigenous automatic train protection system and is certified to Safety Integrity Level 4 (SIL-4). It continuously supervises train movements to help prevent collisions and instances of trains passing a signal at danger, when a train goes past a signal that instructs it to stop.
The system also supports direct interfaces with electronic interlocking, which coordinates signals and points to set safe train routes.
Continuous supervision provides an additional layer of protection when a driver is fatigued or distracted. It also supports safer operations when visibility drops, including during dense winter fog, when signals can be harder to see.
