virginia beach

Fri Dec 6 11:26:37 UTC 2019

If the SLTE and PFE are not going to be co-located next to each other,
the 2 main considerations are:

  * 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.

On 5/Dec/19 05:53, Mehmet Akcin wrote:
> 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 at seacom.mu
> <mailto:mark.tinka at 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.
>

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