FDX Archives

28 05, 2019

FDX More Options for Operators

Mia Colabrese2019-05-28T11:11:54-04:00May 28th, 2019|

The full duplex (FDX) DOCSIS extension to the DOCSIS 3.1 specification has been finalized in Annex J of that spec. What does this mean? A major goal of FDX DOCSIS is the ability to deliver symmetrical data speeds up to 10 Gbps in hybrid fiber/coax (HFC) networks. How does it work? I covered some of this in the Spring 2018 issue of Broadband Library on FDX which you can find here: https://broadbandlibrary.com/full-duplex-docsis/ and will further explore the benefits of FDX now. Why FDX Now? Why am I focusing

14 12, 2018

Demystifying OOB and R-PHY

Mia Colabrese2020-04-02T12:21:56-04:00December 14th, 2018|

Benefits and Limitations, Choose your R-PHY Wisely In this article we dive into Data-Over-Cable Service Interface Specifications (DOCSIS) remote PHY (R-PHY) testing challenges and how these can be overcome using out-of-band (OOB) channel communications. Test and Measurement Challenges with R-PHY Let’s understand the fundamental challenges with testing in an R-PHY world. Today’s radio frequency (RF) test equipment, such as sweep, return path monitoring, and leakage is based on analog signals. Figure 1 illustrates how typical headend / hub test equipment signals traditionally flow to or from an analog

3 10, 2018

R-PHY and Orchestration with ARRIS, CISCO and Brady Volpe

Mia Colabrese2021-08-15T18:56:57-04:00October 3rd, 2018|

Happy Friday Everyone. Today is September 28th and this is episode 42 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is, John Downey, the Van Dam of Cable. John is also CMTS Technical Leader at Cisco Systems, welcome John. Also with us is Tal Laufer who in her sleep orchestrates 1’s and 0’s into beautiful broadband magic, Tal is also Director, Product Manager Network Intelligence and Automation at ARRIS, welcome back Tal.

23 07, 2018

UpStream levels for DOCSIS 3.0, DOCSIS 3.1

Mia Colabrese2021-08-16T09:49:26-04:00July 23rd, 2018|

UpStream levels for DOCSIS 3.0, DOCSIS 3.1, Attenuations at Higher Frequencies, especially 204 MHz, FDX and how RPDs come into play Happy Friday Everyone. Today is July 20th and this is episode 41 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is, John Downey, whose motto is - “Let’s Pump You Up”. John is also CMTS Technical Leader at Cisco Systems, welcome John. Today’s topic is Upstream levels for DOCSIS 3.0, DOCSIS

3 07, 2018

ANGACOM | FDX, R-PHY and Big Data

Mia Colabrese2021-08-16T09:56:37-04:00July 3rd, 2018|

ANGACOM - FDX, R-PHY and Big Data Happy Friday Everyone. Today is June 22th and this is episode 40 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is, John Downey, whose motto is - “Let’s Pump You Up”. John is also CMTS Technical Leader at Cisco Systems, welcome John. And Mia Colabrese who has spent her entire adult life in cable. Welcome Mia. Today’s topic is ANGACOM. Slide Show ANGACOM Highlights: DOCSIS

20 02, 2018

Full Duplex DOCSIS

Mia Colabrese2020-04-02T12:23:26-04:00February 20th, 2018|

Putting the symmetry in DOCSIS and enabling increased bandwidth and speed. Why does symmetry matter you ask, especially in broadband? Well you have symmetry in fiber. Big deal, right? Yes, now FDX allows for coax to do something that it could never do before, have symmetry just like fiber. So FDX continues the alphabet soup of our industry but through symmetry allows for increased broadband and speed in coax. So let’s take another bite of the alphabet soup together. In my last article I covered remote PHY (R-PHY)