Communications industry defines Optical Access infrastructure

Draft Paper Released for Public Comment

Communications Alliance, the peak body for the Australian communications industry, today released a draft paper defining the passive optical infrastructure for the National Broadband Network.

The draft National Broadband Network – Optical Access paper aims to develop a common understanding of the components of optical fibre networks, factors influencing network limits and choices available in deploying the networks. 

It has been developed by the Technical Working Group of the Communications Alliance NBN Project and is intended to become a reference point for designers and builders of optical fibre networks as well as the service providers who will use these networks.

In addition to defining the generic elements of optical networks, the draft paper outlines issues to be resolved for the NBN and addresses:

  • Factors impacting the optical budget
  • Dimensioning parameters and optical budget calculations
  • General considerations for connectors versus splicing
  • Testing

Commenting on the release of the draft paper, Communications Alliance CEO John Stanton said:  “The National Broadband Network – Optical Access draft paper is the second significant outcome from the Technical Working Group as part of our NBN Project.  The Group should be congratulated on its terrific work in documenting a shared understanding of optical network fundamentals.  We look forward to receiving the industry’s feedback on this paper.”

The draft National Broadband Network – Optical Access paper is available from the Communications Alliance website at:

Communications Alliance invites interested parties to comment on the draft paper and submissions are due by 5pm on Friday, 7 May 2010.  Responses will be published on the Communications Alliance website.

The Communications Alliance NBN Project was established in July 2009 and includes seven working groups: NBN Reference Model; Wholesale Services; Early Stage Deployments; End User Premises; Operational; Technical; and End User Migration. 

Communications Alliance has published Release 1 versions of its NBN Reference Architecture and NBN Wholesale Service Definition Framework – Ethernet papers following the public comment process.  It has also published a draft National Broadband Network End User Premises Installation, Distribution, Testing and Associated Practice Handbook, draft National Broadband Network – Overview of Technical Standards paper, and draft National Broadband Network Wholesale Service Definition Framework – Telephony Access Service paper.


Communications Alliance is the peak body for the Australian communications industry.  It presents a unified voice for its members in public policy, facilitates industry solutions to industry issues, and provides up-to-date information on industry issues.  Communications Alliance is also leading the industry's response to the National Broadband Network implementation.  For further information see