[AusNOG] Lightning and FTTC - is it really this bad?

Thu Jan 21 10:36:22 EST 2021

Damien, I agree with you.  Lightning is going to be causing the same issues it always caused regardless of the technology; telegram, POTS, ADSL or VDSL from the curb or cabinet – nothing’s changed because there’s still copper conductors in the ground.

I smell a lot of agenda pushing and bias in this article and that’s about all it is.

Although, maybe a more important topic mentioned in the article – NBN won’t allow these businesses to buy a cold spare?!?

Brendan Ord

From: AusNOG <ausnog-bounces at lists.ausnog.net> On Behalf Of Damien Gardner Jnr
Sent: Thursday, 21 January 2021 9:11 AM
To: Troy Kelly <troy at troykelly.com>
Cc: ausnog at ausnog.net <ausnog at lists.ausnog.net>
Subject: Re: [AusNOG] Lightning and FTTC - is it really this bad?

Yeah it really didn’t make sense to me. How is a product which only has a TINY bit of copper compared to FTTN and indeed the older POTS network, SO much more susceptible to lightning strikes?  I mean, it’s Fibre to the pit, and then one breakout box is running four(?) homes, with maybe 100-150m total of copper between all four homes’ runs?  Unless lightning is hitting one of those houses, or the people in those houses are stupid enough to NOT be running surge protection on their gear (seriously, wtf? Are there really people without surge protection these days? It’s been around for 30 years, and is on almost every power board Bunnings sell..), I don’t see how lightning can be an issue??

Something doesn’t make sense here..

—DG

On Thu, 21 Jan 2021 at 8:25 am, Troy Kelly <troy at troykelly.com<mailto:troy at troykelly.com>> wrote:
Yes Mark, I've heard of it ;)

I guess my point was - why is (is it?) FTTC somehow apparently more susceptible to discharge issues than POTS was/is. Perhaps I am getting the wrong impression from the article.

Regards, Troy
Brevity is the elixir of life.
Father Hector McGrath, Pixie 2020

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Wednesday, 20 January 2021 10:15 PM, Mark Smith <markzzzsmith at gmail.com<mailto:markzzzsmith at gmail.com>> wrote:

Heard of ADSL? POTS?

If the Internet was only meant to run over fibre, there wouldn't have been any ARPANET or Internet before the late 1980s or early 1990s.

Fun fact, RFC1 was written on a typewriter in a bathroom in 1969, because Steve didn't want to disturb his flatmates.

https://tools.ietf.org/html/rfc1

BCP89.

On Wed, 20 Jan 2021, 21:54 Michael Junek, <michael at juneks.com.au<mailto:michael at juneks.com.au>> wrote:

Hi Troy,

Lightning has always been an issue for the copper network – the old adage “don’t use the phone in a storm” comes to mind.

Certainly where my mum is, in Springwood, the copper is above-ground-- you often see a 100-pair floating off the power poles, with the house pair coming from a jumper box mounted up high. This would contribute towards the issues seen.

So it definitely has some merit – my mum has already had to have the FTTC NCD replaced once in the (less than) 12 months she’s had an NBN connection.

The article states “Our technical teams continuously look to investigate ways to reduce the impact of lightning on our electronic equipment with ongoing testing and trials as part of this process.” – this I can attest to, as I have two properties which will be participating in these trials.

Cheers

M.

From: AusNOG <ausnog-bounces at lists.ausnog.net<mailto:ausnog-bounces at lists.ausnog.net>> On Behalf Of Troy Kelly
Sent: Wednesday, 20 January 2021 20:54
To: 'ausnog at ausnog.net<mailto:ausnog at ausnog.net>' <ausnog at lists.ausnog.net<mailto:ausnog at lists.ausnog.net>>
Subject: [AusNOG] Lightning and FTTC - is it really this bad?

I'm confused as to how FTTC would suffer more from lightning strike related issues than other ground conducting technologies?

Is it something about the Blue Mountains in particular, or is this article rubbish?

(Paywall, open in incognito if so inclined)
https://www.smh.com.au/national/nsw/blue-mountains-residents-turn-off-nbn-in-storms-or-risk-no-connection-for-days-20210120-p56vjb.html

Cheers,
Troy

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Damien Gardner Jnr
VK2TDG. Dip EE. GradIEAust
rendrag at rendrag.net<mailto:rendrag at rendrag.net> -  http://www.rendrag.net/
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We rode on the winds of the rising storm,
 We ran to the sounds of thunder.
We danced among the lightning bolts,
 and tore the world asunder
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