ANCIT WORKSHOP Torino, 30-31 March 1998 Conversion to simple underground facility network under...
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ANCIT WORKSHOP Torino, 30-31 March 1998 Conversion to simple un derground facility netw ork under modern underg round facility technolo gies Taishi Deguchi NTT Access Network Systems Labo ratories
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Transcript of ANCIT WORKSHOP Torino, 30-31 March 1998 Conversion to simple underground facility network under...
ANCIT WORKSHOPTorino, 30-31 March 1998
Conversion to simple underground facility network under modern und
erground facility technologies
Taishi DeguchiNTT Access Network Systems Laboratories
ANCIT WORKSHOPTorino, 30-31 March 1998
Social Background in Japan
ANCIT WORKSHOPTorino, 30-31 March 1998
Social Background in Japan
• Expansion of Underground Facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
Social Background in Japan
• Expansion of Underground Facilities
• Restrictions on Underground Work
ANCIT WORKSHOPTorino, 30-31 March 1998
Social Background in Japan
• Expansion of Underground Facilities
• Restrictions on Underground Work
• Provision of Basic Facilities using Social Capital
ANCIT WORKSHOPTorino, 30-31 March 1998
Social Background in Japan
• Expansion of Underground Facilities
• Restrictions on Underground Work
• Provision of Basic Facilities using Social Capital
• Ensuring Reliability during Earthquake
ANCIT WORKSHOPTorino, 30-31 March 1998
NTT Building
User Buildings / Houses
Configuration of Simplified Basic Facilities for Underground Networks
ANCIT WORKSHOPTorino, 30-31 March 1998
Cable Tunnels
Trunk Conduits
Configuration of Simplified Basic Facilities for Underground Networks
ANCIT WORKSHOPTorino, 30-31 March 1998
Shared Facilities
Configuration of Simplified Basic Facilities for Underground Networks
Cable Tunnels
Trunk Conduits
General Conduits
ANCIT WORKSHOPTorino, 30-31 March 1998
Distribution Conduits
Configuration of Simplified Basic Facilities for Underground Networks
General Conduits
Shared Facilities
Cable Tunnels
Trunk Conduits
ANCIT WORKSHOPTorino, 30-31 March 1998
Cable Tunnels
Routes Scheduled to be Provided
Aged Conduits
Existing Conduits
Example of Integrating Routes
Conventional
ANCIT WORKSHOPTorino, 30-31 March 1998
Cable Tunnels
Trunk Conduits
Use of Existing Conduits
Example of Integrating Routes
Future
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification]
Fundamental Concepts for the Provision of Basic Facilities
Routes that will become necessary in the future
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification] [Topics] [Detailed Plans]
Fundamental Concepts for the Provision of Basic Facilities
Routes that will become necessary in the future
Provision of flexibleand simple facilities
Planned construction andmaintenance of facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification] [Topics] [Detailed Plans]
Fundamental Concepts for the Provision of Basic Facilities
Routes that will become necessary in the future
Provision of flexibleand simple facilities
Effective use of existing facilities
Planned construction andmaintenance of facilities
Prolongation of life of existing facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification] [Topics] [Detailed Plans]
Fundamental Concepts for the Provision of Basic Facilities
Routes that are not necessary in the future
Routes that will become necessary in the future
Provision of flexibleand simple facilities
Effective use of existing facilities
Planned construction andmaintenance of facilities
Prolongation of life of existing facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification] [Topics] [Detailed Plans]
Fundamental Concepts for the Provision of Basic Facilities
Routes that are not necessary in the future
Effective utilization for new needs
Routes that will become necessary in the future
Use of distribution facilities
Lending facilities to other companies
Provision of flexibleand simple facilities
Effective use of existing facilities
Planned construction andmaintenance of facilities
Prolongation of life of existing facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
[Route Classification]
Provision of flexibleand simple facilities
[Topics] [Detailed Plans]
Routes that are not necessary in the future
Effective use of existing facilities
Effective utilization for new needs
Reduction of assets
Fundamental Concepts for the Provision of Basic Facilities
Routes that will become necessary in the future
Planned construction andmaintenance of facilities
Prolongation of life of existing facilities
Use of distribution facilities
Lending facilities to other companies
Elimination of unused facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
Promotion of productivity improvements
[Environment]
Replacement of cables forbringing “Fiber to the home”
Lending facilities to other companies
Spreading superannuation of facilities
Trends within and outside the Company and Service Tools
ANCIT WORKSHOPTorino, 30-31 March 1998
Simplification &Flexibility
Effective use
Free access
Shared use
[Topics]
Trends within and outside the Company and Service Tools
Promotion of productivity improvements
[Environment]
Replacement of cables forbringing “Fiber to the home”
Lending facilities to other companies
Spreading superannuation of facilities
ANCIT WORKSHOPTorino, 30-31 March 1998
[Service Tools]
Smoothening ofbusiness
Management offacilities
Management ofinstallation space
[Topics]
Trends within and outside the Company and Service Tools
Promotion of productivity improvements
[Environment]
Replacement of cables forbringing “Fiber to the home”
Lending facilities to other companies
Spreading superannuation of facilities
Free access
Shared use
Simplification &Flexibility
Effective use
ANCIT WORKSHOPTorino, 30-31 March 1998
Facilities data
Maps data
Ground data
Users data
Capacity
Position
Aging status
Cable data
Facilities Management System
Shared Database System
Paper mapsavailablein the market
Urban plans
Conversion toelectronic data
ANCIT WORKSHOPTorino, 30-31 March 1998
Facilities data
Maps data
Ground data
Users data
Capacity
Position
Aging status
Cable data
Facilities Management System
Shared Database System
Conversion toelectronic data
Offer the required data
Paper mapsavailablein the market
Urban plans
ANCIT WORKSHOPTorino, 30-31 March 1998
Facilities data
Maps data
Ground data
Users data
Capacity
Position
Aging status
Cable data
Facilities Management System
Shared Database System
Conversion toelectronic data
Applications
Shared use of facilities
Construction plan
MaintenanceO
ffer the required data
Paper mapsavailablein the market
Urban plans
ANCIT WORKSHOPTorino, 30-31 March 1998
Subscriber lead-in conduit
Single conduit
System Configuration of New Underground Distribution Facility
Single conduit 2 ~ 6 inches
DiameterComponents
1 or 2 inches
2 ~ 6 inches
Subscriber lead-in conduit
Modified branch conduit
Modified branch conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
System Configuration of New Underground Distribution Facility
Single conduit
Lead-in cable
Distribution cable
Single conduit 2 ~ 6 inches
DiameterComponents
1 or 2 inches
2 ~ 6 inches
Subscriber lead-in conduit
Modified branch conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
Conventional Type Conduits Arrangement
Occupancy ratio ; 100%
Concept of Trunk Conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
Free-space Conduit Arrangement
Equal spacefor installing optical fibercable cores in
Compactness
Conventional Type Conduits Arrangement
Occupancy ratio ; 100%
Concept of Trunk Conduit
Occupancy ratio ; 50%
Outer pipe
Inner pipes
ANCIT WORKSHOPTorino, 30-31 March 1998
Outer pipe
Inner pipes
Manhole side wall
Duct sleeve
Inner pipes fixing socket
Arrangement of Free-space Conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
Large diameter optical fiber cable
Cables of other companies, etc.
Metalic cable(temporarily placed)
Arrangement of Free-space Conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
Inner pipes
Arrangement of Free-space Conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
Small diameter optical fiber cable
Free space
Arrangement of Free-space Conduit
ANCIT WORKSHOPTorino, 30-31 March 1998
PitPit
High density installation of cables
Installation technique of concentrating cable connection points in pit
Cable Tunnel
High Density Cable Tunnel
ANCIT WORKSHOPTorino, 30-31 March 1998
PitPit
High density installation of cables
Installation technique of concentrating cable connection points in pit
Cable Tunnel
High Density Cable Tunnel
Shared use
Space used by NTT
Space used by other companies
ANCIT WORKSHOPTorino, 30-31 March 1998
Examples of Aseismatic Technologies
ANCIT WORKSHOPTorino, 30-31 March 1998
Expansible and flexible joint for open-cut cable tunnel
Steel fiber mixing into manhole duct concrete
Flexible conduit for building access facilities
Examples of Aseismatic Technologies
ANCIT WORKSHOPTorino, 30-31 March 1998
• by FAX ; +81 298 52 2676
• by E-mail ; [email protected]
Taishi DeguchiNTT Access Network Systems Laboratories
Please notify me of questions that I could notanswer to today or of additional questions
