Summary
- NTT’s Frankfurt 4 data centre campus has installed Boon Edam Circlelock Solo security portals.
- The portals use credential checks and 3D sensing to reduce tailgating and unauthorised access.
- The installation reflects the growing physical-security burden on major European colocation and hyperscale campuses.
NTT Global Data Centers has strengthened physical access controls at its Frankfurt 4 campus with Boon Edam Circlelock Solo mantrap portals.
The portals form part of an integrated access system developed with e-shelter security. Users present credentials before entering a cylindrical compartment, where a 3D sensor checks that only one person is inside before the internal door opens to the secured area.
At a large data centre campus, tailgating prevention is more than a front-door detail. Frankfurt is one of Europe’s most important data centre and interconnection markets, supporting cloud platforms, carriers, financial services users, enterprises, and internet exchange traffic. Physical access control is part of the resilience architecture that protects those workloads.
Cyber risk still has doors
Data centre security is often discussed as a cyber discipline, yet people still move through gates, doors, corridors, loading bays, plant rooms, meet-me areas, and data halls. A facility can have strong logical controls and still carry operational risk if its physical access processes are weak, inconsistent, or too dependent on manual supervision.
Mantrap portals are designed to enforce single-person entry into secured zones. Their value lies not only in stopping deliberate intrusion. They also reduce badge sharing, accidental procedural breaches, and the quiet normalisation of people following others through controlled doors. In a campus environment with customers, contractors, engineers, security teams, and maintenance staff moving through the site, the quality of the access record matters.
Frankfurt’s concentration of critical digital infrastructure raises the stakes. Large data centres in and around the city support connectivity, cloud, enterprise, and financial workloads that may have many indirect dependencies. A physical security failure in such a market can create consequences beyond one tenant cage or one operator’s internal process.
Layered security depends on the connections between systems. Perimeter fencing, vehicle controls, guards, CCTV, credentials, biometrics, mantraps, internal zoning, and security operations teams all perform different roles. Weakness often appears at the joins: a contractor process, a busy shift change, a poorly monitored secondary entrance, or a security control that staff learn to work around.
Resilience moves into the lobby
European data centres are increasingly treated as critical infrastructure because they support financial services, cloud platforms, public services, healthcare systems, enterprise operations, and AI workloads. As that visibility increases, operators have to demonstrate resilience at the physical layer as well as through uptime statistics and cyber controls.
The operational challenge is that secure facilities are also working industrial environments. Construction, fit-out, planned maintenance, customer installations, emergency repairs, deliveries, and audits all bring people onto site. A security system that is too loose creates risk; one that is too cumbersome creates queues, delays, and workarounds. Access controls have to be strict enough to protect sensitive areas and practical enough to survive daily operations.
Customer expectations are moving in the same direction. Colocation and hyperscale users often need evidence for audits, insurance, procurement, certifications, and regulatory duties. Physical security systems can support that evidence base by showing who entered, when, through which control point, and under what authentication process.
Frankfurt 4’s security portals will not change the European data centre market on their own, but they show how resilience investment is becoming more granular. Power trains, cooling loops, networks, and backup systems remain central, yet the everyday controls at doors and corridors can decide whether a facility’s security model holds under pressure.
The data centre industry has spent years explaining that cloud services depend on concrete, steel, power, and cooling. The same logic applies to security. A resilient digital platform still needs the right person, and only the right person, to pass through the door.
