E. Demierre and P. Schroeter 1 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 P614 TASK 5 FTTH What future for FTTH?

E. Demierre and P. Schroeter 2 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Three key conditions for short/medium term FTTH implementation: Powering, Network quality, Service strategy Eric Demierre, Swisscom Philippe Schroeter, Swisscom Swisscom, CSELT, DTAG, Hungarian Telecom, Telenor

E. Demierre and P. Schroeter 3 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 P614 Task 5: Content of presentation New environment & opportunities for FTTH The approach of P614 Task 5 Achieved results by P614 Task 5 Powering Availability Example of investment costs Conclusions

E. Demierre and P. Schroeter 4 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 New environment & opportunities for FTTH Engagement of several PNOs in FTTH (=> large scale production) Penetration of GSM and mobile services (=> role of the fixed access network is changing) Importance of investments for PNOs (=> flexible, future proof connected with revenues) Demand for low-cost high bandwidth access (=> multimedia, Internet,...)

E. Demierre and P. Schroeter 5 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Growth of the Internet telephony (=> voice can be transported on data networks) Lower availability of services (=> PCs are out of order during power mains failure) Low availability of applications (=> Software incompatibility problems, bugs in the operating systems) Need of service symmetry (=> e.g. teleworking) New environment & opportunities for FTTH

E. Demierre and P. Schroeter 6 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 The approach of P614 Task 5 Hypotheses: FTTH is complementary to GSM

E. Demierre and P. Schroeter 7 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Achieved results by P614 Task 5 Powering for FTTH: architectures, availability, costs (Deliverable 12) Availability models for FTTH with costs (Deliverable 13) Characteristics of BB services taking into account FTTH (Deliverable 14) Elaboration of common FTTH guidelines (Deliverable 8)

E. Demierre and P. Schroeter 8 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Powering: Unavailability & Back-up

E. Demierre and P. Schroeter 9 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Preferred Powering Solution for FTTH: Local Powering Local powering by means of an AC/DC converter. ONU power consumption from 6.5 W to 13 W Optional back-up example: –6.5 W minimum (core 5 W + telephony card 1.5 W) –Ni-Cd battery Panasonic P-V215A (6V, C 2.5 =1200 mAh), cost 70$ –Additional cost for battery charger and regulator, 10$ to 20$ –Total additional cost 80$ to 90$

E. Demierre and P. Schroeter 10 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Availability Increase of availability: Enhancement of ONU power supply availability using power back-up Enhancement of OLT and/or ONU equipment availability Unavailability and down time per year for FTTH APON (low cost implementation) FTTH APON elementMean time to repair[h] UnavailabilityDown time per year OLT equipment · min OLT power supply neglect Fibre (feeder and distribution, 2km)212· min Optical splitter 21 2· min ONU equipment · h 07min ONU power supply, local powering, no back-up2.7· h 23min Total FTTH APON h 33min

E. Demierre and P. Schroeter 11 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Availability: Contribution of elements

E. Demierre and P. Schroeter 12 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Analysis of Investment Costs Hypothesis –All 512 ONUs are installed and connected to one OLT –Average distances: OLT - splitter: 1.6 km, splitter - ONU: 400 m –One fibre per O/E (to save splitter and splicing costs) Investment costs of the whole PON: mk = number of elements Pk = unit price per element

E. Demierre and P. Schroeter 13 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 ATM-PON: Analysis of Investment Costs

E. Demierre and P. Schroeter 14 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Promising Situations for Short-Term FTTH Greenfield situations Old copper network needs to be replaced Provisioning of digital video (similar to CATV) Situations where installation of aerial cables is possible. Spare room in ducts Existing tube for air blow fibre

E. Demierre and P. Schroeter 15 TRIBAN WORKSHOP TRIBAN Workshop Bern, November 1998 Conclusion A low-cost FTTH solution is proposed as a suitable solution for matching customer wishes and operator requirements. The solution has been justified in term of services, availability, powering and costs. Technical issues and justifications have been made available in 4 deliverables (Deliverable 12, 23, 14 and 8)