SaoPaolo to Frankfurt

Mon Jul 13 15:08:33 UTC 2020

On 13/Jul/20 15:41, Colin Stanners (lists) wrote:
>
> Looking at the Wikipedia article, it claims that  Atlantis-2 “can
> already be upgraded with current technology to 160Gbit/s”. Would be
> interesting why that wasn’t already done on this 20-year-old cable –
> assuming that the underground infrastructure (repeaters) are
> compatible with the newer modulations (or additional wavelengths, but
> that would have necessitated much more design), the upgrade cost
> should be small compared to the cable’s value.
>

There is only so far you can upgrade 20-year old repeaters until
considering to replace all of them across the full length of the current
system makes building a new system a simpler option.

Repeaters aren't cheap, and you'd need more over a shorter interval
distance to increase capacity, or deploy current generation ones to
minimize cost without sacrificing ultimate capacity.

Mark.
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