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Procurement Policies

Technical Requirements

NTT procures high-quality products in order to respond to the advances in communications technologies in the global market. NTT provides documents describing the basic technical requirements for the telecommunication equipment as reference material for telecommunication system designers and manufacturers.

If you have any questions about the contents of these technical requirement documents, please contact the contact point indicated in the documents. Please contact tr@hco.ntt.co.jp to obtain technical requirement documentation.

GI optical fiber cords
1.5Ám band SM optical fiber cords
SINGLE-MODE OPTICAL FIBER WB TERMINATION CABLE(2nd Edition)
ISDN (2B+D) digital circuit NTU
TECHNICAL REQUIREMENTS FOR IMMUNITY OF TELECOMMUNICATIONS EQUIPMENT(3rd Edition) [PDF:270K](Launch in New Window)
IU-67 TYPE OFFSET ANTENNA
TECHNICAL REQUIREMENTS FOR POWER-SUPPLY INTERFACE OF COMMUNICATIONS EQUIPMENT [PDF:238K](Launch in New Window)
TECHNICAL REQUIREMENTS FOR ELECTROMAGNETIC DISTURBANCE EMITTED FROM TELECOMMUNICATIONS EQUIPMENT (4th Edition) [PDF:294K](Launch in New Window)
TECHNICAL REQUIREMENTS FOR ELECTROMAGNETIC DISTURBANCES EMITTED FROM LIGHTING EQUIPMENT INSTALLED IN TELECOMMUNICATIONS CENTER(2nd Edition) [PDF:324K](Launch in New Window)
TECHNICAL REQUIREMENTS FOR RESISTIBILITY OF TELECOMMUNICATIONS EQUIPMENT TO OVERVOLTAGE AND OVERCURRENT(2nd Edition) [PDF:1.23M](Launch in New Window)
TECHNICAL REQUIREMENTS FOR THE ELECTRICAL SAFETY OF EXTERNAL POWER SUPPLIES FOR ON-PREMISES INFORMATION AND COMMUNICATIONS EQUIPMENT(2nd Edition) [PDF:620K](Launch in New Window)
LC_connectors_Technical_Requirements [PDF:242K](Launch in New Window)
Technical Requirements for High-voltage DC Power Feeding Interfaces of ICT equimpment [PDF: 152K](Launch in New Window)
TECHNICAL REQUIREMENTS FOR IMMUNITY OF TELECOMMUNICATIONS EQUIPMENT TO INTERFERENCE CAUSED BY WIRELESS DEVICES IN TELECOMMUNICATION CENTERS [PDF:203K](Launch in New Window)

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