ucll sub loop co location
Skip this Video
Download Presentation
UCLL Sub Loop Co-Location

Loading in 2 Seconds...

play fullscreen
1 / 9

UCLL Sub Loop Co-Location - PowerPoint PPT Presentation

  • Uploaded on

UCLL Sub Loop Co-Location. Economic Life of a Cabinet. Overview. Physical life of FTTN cabinets is 20 years. Economic life depends on: When FTTN is over taken Whether cabinets are made redundant at that point. Our best estimate of economic life is 10 years . When will FTTN be overtaken?.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' UCLL Sub Loop Co-Location' - teige

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
ucll sub loop co location

UCLL Sub Loop Co-Location

Economic Life of a Cabinet



  • Physical life of FTTN cabinets is 20 years.
  • Economic life depends on:
    • When FTTN is over taken
    • Whether cabinets are made redundant at that point.
  • Our best estimate of economic life is 10 years

When will FTTN be overtaken?

  • Technology is rapidly evolving.
  • 10 years ago:
    • Telecom was installing dialup internet capability
    • An initial ADSL trial was being run, and the first ADSL commercial deployment design was just beginning. ADSL services were commercially available beginning in 1999.
  • Today
    • We are in our 4th generation of ADSL technology
    • Installing cabinets to improve customer line rates
    • VDSL2 is beginning to be deployed
    • Mobile technology is delivering Broadband, ever increasing
    • Govt policy is to deliver FTTH to 75% of NZ in the next 5 years
    • Mobile Technology delivers Broadband, 3G will make this faster

The next technologies are already here.




Average Copper Distance

End user Speed

What’s happening?


Before FTTN


3.00 Km

5 Mb/s


0.80 Km

15 Mb/s



FTTN / Exchange



0.80 Km

20 Mb/s


0.30 Km


Fibre to the Curb


60 Mb/s

Vendors demonstrating now


Fibre to the Home

3.00 Km *

100 Mb/s

Installing in Greenfields now


1 Gig/s

Fibre to the Business

3.00 Km *

Govt policy


P2P Ethernet

Fibre Distance *

Speeds from Alcatel Lucent Lab tests


Placing VDSL2

  • Orcon/Kordia/Callplus has argued that the move to VDSL2 will extend the economic life of the cabinet to 20 years (2028)
  • VDSL2 from the cabinet will only deliver 20 Mbps. This is unlikely to satisfy customers for more than 10 years (on average).
  • To deliver the benefits of VDSL2 – 70 Mbps (on average)- we need to get VDSL2 technology to within 300m copper line of each house.
  • This is FTTC, which will not use FTTN cabinets.

When will FTTN be overtaken?

  • It is clear that it will be less than 20 years (2028).
  • In 10 years, customers will not be satisfied with 20Mbps
  • In places, FTTC or FTTH will be here in 5 years
  • Chorus estimates an average cabinet life of 10 years (2018)

Cabinets will be redundant when FTTN is overtaken

  • Post-FTTN cabinets need to be in a different place.
  • Post-FTTN cabinets will be a different size.
  • Post-FTTN cabinets will not need power.
  • When making the transition from FTTN to FTTH, the old cabinets need to stay working while the new cabinets are installed.

FTTH cabinets will be in a different place

  • FTTN cabinets need to be situated close to the customers premise, to shorten the copper lengths.
  • FTTN cabinets are placed to serve a maximum of 330 working lines, this allows for infill growth.
  • FTTH cabinets don’t need be close to the customers premise.
  • FTTH cabinets can serve 512 working customer lines.
  • FTTH cabinets will be located further away from the customer and will aggregate more customers.
  • FTTN and FTTH cabinets are located in different geographical positions for different reasons.
  • It is uneconomic to locate FTTH cabinets where we locate FTTN cabinets.

Re-using FTTN Cabinets is unrealistic.

  • A FTTN cabinet is power fed.
  • A FTTN cabinet fills the maximum allowable space under RMA rules for cabinets.
  • A FTTH “PON” cabinet is a lot smaller and requires no power.
  • It is overbuild - to remove and refurbish a large FTTN cabinet in order to relocate it to house the small FTTH “PON” equipment.
  • We could not fit the “PON” equipment in the FTTN cabinet.
  • FTTN and FTTH cabinets would need to be simultaneously working in order to migrate customers over without disruption.