www.newcivilengineer.com South East Water Upgrades Network Ahead of PSTN Switch-Off
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- •South East Water is transitioning to a digital communications network ahead of the PSTN switch-off.
- •The upgrade will impact over 300 locations, requiring careful planning to maintain SCADA functionality.
- •Cybersecurity measures will be critical to protect operational technology during the transition.
South East Water has appointed Vysiion to implement a new communications network for its IT and OT assets before the UK PSTN switch-off in January 2027. The upgrade will replace outdated PSTN links with a digital, IP-based system, impacting remote monitoring and control of water treatment facilities. This transition will require careful planning to ensure continuous SCADA visibility and prevent outages. The project includes a fully managed hybrid SD-WAN to secure connectivity across over 300 locations. Cybersecurity measures will be essential to segregate operational technology from office networks. The upgrade is part of a broader trend in the water utility sector towards enhanced digital safety and resilience, especially given regulatory scrutiny following recent incidents.
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