Re: breakout

[Olivier Benghozi <olivier.benghozi () wifirst fr>]

Hi,

yep, that's the right way to work cleanly, just add a «special patch panel» instead of dealing with plenty of 
additional wires.

We use such method to do 10GE with routers modules full of QSFP+ configured as 4x10. On our side we went for a modular 
Huber+Suhner solution, 1 U with a maximum of 18 MTP (from 18 QSFP+) internally wired to 72 LC duplex.
I searched a bit before choosing this, it looks like this was (still is ?) the denser solution.

They are divided in modules of 3 MTP to 12 LC-duplex (wired accordingly to the QSFP+ / MTP8 pairing):
https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Modules/ITD-12-LCUD-03-08CF-SM-NS-00WW
 
<https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Modules/ITD-12-LCUD-03-08CF-SM-NS-00WW>

They go inside some various chassis, we use their 1U one than can host 6 of such modules:
https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Chassis/IANOS-STD-CHASSIS-FLX-1U-2G-T4
 
<https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Chassis/IANOS-STD-CHASSIS-FLX-1U-2G-T4>

We use them since 2017: https://twitter.com/OBenghozi/status/885528976801837057 
<https://twitter.com/OBenghozi/status/885528976801837057>


regards,
Olivier

> Le 9 janv. 2020 à 17:29, Baldur Norddahl <baldur.norddahl () gmail com> a écrit :
>
>  Hello
>
> In my opinion the "nice" way of breaking out QSFP into 10G is something like this:
>
> https://www.fs.com/de-en/products/43552.html <https://www.fs.com/de-en/products/43552.html> 
>
> 40GBASE-PLR4 to 10GBASE-LR Breakout Panel 1U Rack-Mount, 24x LC Quad, 12x MTP Elite (0.35dB IL), Single Mode
>
> You connect your QSFP module using a MTP cable to the breakout panel. That particular panel will accept up to 12x MTP 
> connections (12 QSFP ports) which equals 48x 10G LR 10 km single mode. 
>
> If you don't need quite that many breakouts this solution is also available in smaller cassettes:
>
> https://www.fs.com/de-en/products/68401.html <https://www.fs.com/de-en/products/68401.html> 
>
> MTP-8 to 4x LC Duplex, 8 Fibres OS2 Single Mode FHD MTP Cassette
>
> That will terminate one MTP cable (1 QSFP port).
>
> I prefer the panel solution over breakout cables because the later assumes all the connections are going the same 
> place. Also the panel solution will appear as an extension of the switch or router. Mentally it is simply extra ports 
> on a separate panel.
>
> Regards,
>
> Baldur