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Need assistance in applying FCC Auction 903?

Calix CAF Phase II Auction Resources

Make sure you have the opportunity to bid on nearly $2B in awards!


A quick summary of Connect America Fund (CAF)
Phase II Auction 903

The CAF Phase II Auction represents a great opportunity for aggressive service providers to find new growth opportunities in serving broadband starved communities. By definition, the communities targeted by this program were either underserved or unserved – on the wrong side of the digital divide – and their incumbent service providers were either unable, or unwilling, to commit to bringing these communities up to minimum national standards.

This Auction 903 will award up to $1.98 billion over the next 10 years to service providers willing to commit to deliver voice and broadband services these identified areas. Additional information on Auction 903 can be found here

Filling out the CAF II short form

The short-form application filing window in now upon us – from March 19 through March 30, 2018. This step is a selection process that establishes the eligible bidders for the actual bidding which begins on July 24, 2018.

Calix has assembled a set of tools to assist those who plan to use Calix solutions in their bids.

There are specific technology and performance assurances that are part of the application process, including standards identification, speed, latency, and MOS score. Below are links to documents that will help applicants satisfy requests for this information.


If you require additional information, please reach out to your Calix sales representative or contact us.

All Calix products are standards based

Following are links to relevant datasheets that clearly identify technology standards used.

Click to download:

In addition to the specifications outlined in the product datasheets, Calix GPON products also comply with the following standards:

  • G.984.1, Gigabit-capable Passive Optical Networks (GPON): General characteristics, 2008, with Amendment 1 (2009) and 2 (2012)
  • G.984.2, GPON: Physical Media Dependent (PMD) Layer Specification, 2003, with Amendment 1 (2006) and 2 (2008)
  • G.984.3, G-PON: Transmission Convergence Layer Specification, 2008, with Amendments 1 (2009), 2 (2009), 3 (2012) and Erratum 1 (2010)
  • G.984.4, G-PON: ONT Management and Control Interface (OMCI) Specification, 2008, with Amendments 1 (2009), 2 (2009), 3 (2010), Erratum 1 (2009), Corrigendum 1 (2010), and An Implementer's Guide (2009)
  • G.984.5 Enhancement Band, 2007, with Amendment 1 (2009) Coexistence with Future WDM PON Technology on the Same Medium
  • G.984.7 Gigabit-capable Passive Optical Networks (GPON): Long reach (2010)


All Calix fiber access solutions are gigabit speed capable

A Customer Advisory Bulletin “Throughput of Calix GPON and Active Ethernet Access Systems” which uses RFC 2544 test procedures to characterize the data rates of Calix solutions at different frame sizes can be accessed here:    

Calix solutions have industry leading latency characteristics

Latency in a PON network is measured in the upstream and downstream direction.  As a point to multipoint technology, it is important to understand the different factors to planning for latency. Some of these variables include packet size, traffic type (TCP or UDP), traffic load, uplink capacity (1GE vs 10GE) and ONT types. 

Calix leverages industry standard testing based on RFC2544 to measure throughput and latency across various configurations for our GPON and 10G PON solutions.  Due to the asymmetric nature of GPON (2.5Gbps downstream / 1.25 Gbps upstream), we have observed increased latency in the upstream direction versus the downstream direction.  Factoring in consideration for variables previously mentioned, Calix solutions typically maintain a latency of ~26 microseconds in the downstream direction and 750 microseconds in the upstream direction while supporting 1 Gbps services in a typical PON with 64 subscribers.    

Calix measures MOS scores for all of its solutions

The average MOS score for Calix fiber solutions is 4.13. The average MOS score for Calix copper solutions is 4.15.