P614 TASK 5 FTTH

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P614 TASK 5FTTH

• What future for FTTH?

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Three key conditions for short/medium term FTTH
implementation Powering, Network quality,
Service strategy
Swisscom, CSELT, DTAG, Hungarian Telecom, Telenor

• Eric Demierre, Swisscom
• Philippe Schroeter, Swisscom

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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

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New environment opportunities for FTTH

• Engagement of several PNOs in FTTH (gt large
  scale production)
• Penetration of GSM and mobile services (gt role
  of the fixed access network is changing)
• Importance of investments for PNOs (gt flexible,
  future proof connected with revenues)
• Demand for low-cost high bandwidth access (gt
  multimedia, Internet, ...)

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New environment opportunities for FTTH

• Growth of the Internet telephony (gt voice can be
  transported on data networks)
• Lower availability of services (gt PCs are out of
  order during power mains failure)
• Low availability of applications (gt Software
  incompatibility problems, bugs in the operating
  systems)
• Need of service symmetry (gt e.g. teleworking)

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The approach of P614 Task 5

• Hypotheses FTTH is complementary to GSM

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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)

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PoweringUnavailability Back-up
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Preferred Powering Solution for FTTHLocal
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, C2.51200
  mAh), cost 70
• Additional cost for battery charger and
  regulator, 10 to 20
• Total additional cost 80 to 90

10
Availability
Unavailability and down time per year for FTTH
APON (low cost implementation)
Increase of availability

• Enhancement of ONU power supply availability
  using power back-up

• Enhancement of OLT and/or ONU equipment
  availability

11
Availability Contribution of elements
12
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

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ATM-PON Analysis of Investment Costs
14
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

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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)