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Complete solutions for your network systems

In a fully connected future, the potential and possibilities for Africa to continue to build and contribute to economic growth and participate in the globally connected digital economy, is dependent on access to world-class data centres. Data centres are the key to unlock the potential of a data-driven, data-informed future. Dimension Data and NTT are building Africa’s largest data centre platform to support this digital future. A future that is fully connected, enabling every person to actively participate in the digital economic and social future of our communities.

Take a look inside Johannesburg 1

JOH1 Entrance

Main entrance

- registration and visitor verification desks

- in-house security staff to secure the site 24/7



 - offices, storage space and pre-installation rooms

- common areas such as meeting rooms and catering areas

Technology Experience Lab

Technology Experience Lab

- validate hybrid cloud services and innovations faster and at lower cost

- our Technology Experience Labs provide the perfect hosted experience

Johannesburg 1 overview



· On-site substation delivering 20MVA of power

· Maximum client IT load of 12MW

· Average power density of 2.0kW/m2

· Power supply at 20kV level

· All IT racks supplied by two separate UPS systems (A- and B-supply) with N+1 redundancy

· Redundantly designed emergency power system with diesel generators N+1



· 24/7 Security Operations Centre and remote Service Control Centre.

· Redundant monitoring of all critical functions underpinned by standardised security processes and the multi-level security zone principle, secures the rental area and the technical operation.

· Site perimeter fence to be 2.7m high ClearVu or similar fence, with extended post to 3m accommodating an electric fence.


· Carrier-neutral

· Carrier mix from global tier 1 supplier to regional supplier

· Inter data centre connectivity between NTT data centres for geo-redundant solutions

· Multi Service Interconnection Platform to connect our clients to major cloud service providers

· Redundant Carrier-Meet-Me-Rooms


· Chilled water data suite cooling with air-cooled free-cooling chiller systems with a minimum of N+1 redundancy and supplemental adiabatic system for efficiency

· Concurrently maintainable AHUs providing fresh air pressurisation and humidity control to data suites

· Chilled water cooling to MMR and to electrical plant rooms (N+1)

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