• The Management signal between the SLTE and the PFE, which is generally ran over copper. So 100m becomes the distance limit. However, you can mitigate this by doing media conversion between optical and copper. Also, it's quite possible that modern PFE's and SLTE's can run Management traffic over optical signals. One would have to check with the vendors.
  

• The SLTE Launch Tx power into the wet plant toward the 1st repeater. You'd have to design this for every specific case; whether you want to co-locate the SLTE and PFE, or if you want to separate them. This is critical so that all payload channels are correctly balanced.

Mark.

is there any limitation of where an SLTE can be placed in terms of distance from PFE?

I have looked in to usual palaces and i was unable to confirm there is any requirements for any distance. Any cons can you guys think of that you want to share would be appreciated.

here are places I have looked at

http://opticalcloudinfra.com/index.php/2018/03/28/whys-hows-open-subsea-cable-systems/

https://www.osa.org/osaorg/media/osa.media/OSAF/Banners/Cable_Powering.pdf

http://opticalcloudinfra.com/index.php/2016/02/27/why-open-subsea-cable-systems/

thank you

On Tue, Nov 26, 2019 at 1:03 PM Mark Tinka <mark.tinka@seacom.mu> wrote:

On 26/Nov/19 18:47, Ben Cannon wrote:

> Nowadays however, the CLS is looked at more like an ILA shelter, or
> when feasible cable landings are going directly into metro CNDCs as
> the physical gear is getting smaller and smaller and more suitable for
> colocation.

Nowadays, the SLTE sits in a proper data centre.


>
> There’s still the small matter of 11,000volts of power or more…
>  That’s usually kept out towards the sea.

Yes, PFE's will generally live at the CLS.

Mark.