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Basic information and specifications
Domestic Data Center Services
This page describes the basic information and specifications of the main facilities that provide KDDI's domestic data center services for corporate and business customers.

With a wealth of reliable experience and advanced expertise, KDDI's domestic data center services provide powerful business support
Basic information and specifications
The basic information and specifications of the main data centers are described below.
TELEHOUSE TOKYO Tama 3 - Basic information and specifications
Building | Location | Tama, Tokyo |
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No. of available racks | Approx. 1,300 racks | |
Construction | Steel construction with base isolation system | |
Scale | 5 floors above ground | |
Electrical facilities | Power receiving system | 66 kV main/stand-by power system |
In-house power generators | N+1 redundant configuration (continuous 48-hour operation possible with no additional fuel supply) | |
UPS | N+1 redundant configuration (15-minute power supply) | |
Power supply | Max.: Rated 42 kVA (Effective 30 kVA) per rack Avg.: Rated 21 kVA (Effective 15 kVA) per rack Overall: 14 MW |
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Air conditioning facilities | Air conditioning system | Air-cooled module chillers with underfloor cool air delivery |
Air conditioner configuration | N+2 redundant configuration with UPS | |
Operation and security | Operating framework | Operator on duty 24 hours a day, year-round |
Certification | ISO27001 (ISMS) certified | |
Security | Security gates, biometric authentication, IC cards, security cameras, and tailgating prevention system | |
Amenities | Rest areas, conference rooms, customer operation rooms, nap rooms, shower rooms, and staging rooms |
TELEHOUSE OSAKA 2 - Basic information and specifications
Building | Location | Chuo-ku, Osaka City, Osaka |
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No. of available racks | Approx. 700 racks | |
Construction | Steel construction with base isolation system | |
Scale | 20 floors above ground | |
Electrical facilities | Power receiving system | 77 kV main/stand-by power system |
In-house power generators | N+1 redundant configuration (continuous 48-hour operation possible with no additional fuel supply) | |
UPS | N+1 redundant configuration (15-minute power supply) | |
Power supply | Max.: Rated 30 kVA (Effective 20 kVA) per rack Avg.: Rated 15 kVA (Effective 10 kVA) per rack Overall: 6.6 MW |
|
Air conditioning facilities | Air conditioning system | Air-cooled module chillers with underfloor cool air delivery |
Air conditioner configuration | N+2 redundant configuration with UPS | |
Operation and security | Operating framework | Operator on duty 24 hours a day, year-round |
Certification | ISO 27001 (ISMS) certified | |
Security | Security gates, biometric authentication, IC cards, security cameras, and tailgating prevention system | |
Amenities | Rest areas, conference rooms, customer operation rooms, nap rooms, shower rooms, and staging rooms |
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