1. ANCIT WORKSHOP Torino, 30-31 March 1998 Broadband Access Network Design Enrico Mondo Sirti S.p.A. - Design Centre Via Galileo Galilei, 5 - 20060 Cassina de’ Pecchi (MI) - Italy Tel: +39 2 66773865 - Fax: +39 2 66773894 - e-mail: E.Mondo@sirti.it

2. ANCIT WORKSHOP Torino, 30-31 March 1998 Summary Design workflow The Design Centre’s experience World-wide design Why a Telecommunication Operator needs high quality design and as-builds drawings Conclusions

3. ANCIT WORKSHOP Torino, 30-31 March 1998 Design workflow Criteria Specifications Symbology Forecast Users Cartography Existing infrastructure DESIGNDOCUMENTATION Maps acquisition or digitisation Survey System engineering & Network design Civils design Permits map preparation Bill of Materials Investments evaluation > SIREN (Sirti owned CAD system application) > Workflow Management System Network data base Input:

4. ANCIT WORKSHOP Torino, 30-31 March 1998 Maps acquisition/digitisation Designing on paper leads to slow production, poor quality and problems in design updating Accuracy and precision of digitised maps must be verified during survey SW application must allow both automatic and manual measurements acquisition Map digitisation

5. ANCIT WORKSHOP Torino, 30-31 March 1998 Survey Survey information includes: housecounting and MDU internal wiring definition of entry point to premises proposed cabinet sites verification of digital map information inspection of existing infrastructure footways and carriageways surface type poles location and status >Pen-PC can be used to store information on site

6. ANCIT WORKSHOP Torino, 30-31 March 1998 RF design RF Design includes: Catchment areas definition Amplifiers and passives location Coaxial cable routes Signal calculation Powering Generation of geo-schematics and orthogonal schematics

7. ANCIT WORKSHOP Torino, 30-31 March 1998 RF Design

8. ANCIT WORKSHOP Torino, 30-31 March 1998 Copper network design Copper network design includes: location of DPs and MUXes/ADMs copper cable dimensioning and route identification copper joints location pair assignment

9. ANCIT WORKSHOP Torino, 30-31 March 1998 Fibre optic design

10. ANCIT WORKSHOP Torino, 30-31 March 1998 Fibre optic design Identification of existing cables and spare fibres Fibre cable routes definition Fibre joints location Fibre assignment Dimensioning of Optical Transmitters/Receivers Signal loss calculation Geo-schematic diagrams

11. ANCIT WORKSHOP Torino, 30-31 March 1998 PON + ADSL/HDSL/VDSL Data loading Choice of MONU type MONU cabinet location according to survey Analysis of existing copper network Identification of copper network adjustments PON design (choice of OLTs, splitters definition and location, optical power budget and ranging calculation,...)

12. ANCIT WORKSHOP Torino, 30-31 March 1998 DECT design

13. ANCIT WORKSHOP Torino, 30-31 March 1998 DECT Design Design steps: –Draft design –Survey –Design adjustment –Documentation preparation and delivery Identification of RBS/RFP’s sites Complete radio coverage of the area must be guaranteed Use of portable pen-PC essential for handling information

14. ANCIT WORKSHOP Torino, 30-31 March 1998 Civils design

15. ANCIT WORKSHOP Torino, 30-31 March 1998 Civils design Design includes: >trench route >ducts dimensioning >location of pits, chambers and cabinets >location of swept-tees >overhead infrastructure >mains power connection Link to Database Optimisation essential to contain high costs of trench and other civil infrastructures

16. ANCIT WORKSHOP Torino, 30-31 March 1998 Bill of Materials Database link Automatic generation of complete list of materials for the entire network at any time during design Automatic cost evaluation of each single area and global Statistical analysis

17. ANCIT WORKSHOP Torino, 30-31 March 1998 Design Centre - Milan, Italy

18. ANCIT WORKSHOP Torino, 30-31 March 1998 Sirti’s Offer Feasibility Studies and Planning Design Procurement Engineering and Networks Construction Management Systems Maintenance TelecommunicationsNetworks

19. ANCIT WORKSHOP Torino, 30-31 March 1998 Construction Installation Activation Synergies Design Technical Dept. SW Development Research

20. ANCIT WORKSHOP Torino, 30-31 March 1998 World-wide Design

21. ANCIT WORKSHOP Torino, 30-31 March 1998 Why a Telecom Operator needs high quality design and as-builds drawings Costs optimisation Database and graphical archives reliability and efficiency Link to Network Management and Billing Systems Network upgrade or changeout

22. ANCIT WORKSHOP Torino, 30-31 March 1998 Conclusions We have seen: what is network design; Sirti’s Design Centre organisation and experience; the importance of a good design.