MA-SPF-10G-LRM with SFP-10G-LR-S

[lhodovan]

Hi Guys,

My question is if i can connect MA-SPF-10G-LRM (300m) plugged in to MS225 switch with SFP-10G-LR-S (10km) plugged in to SX550 small business switch? 

My problem is with the different distance. 

Or what do you mean the SFP-10G-LR-S can work with MS225 switch?

Thank you in advance,

Laszlo

[Inderdeep]

@lhodovan : Check out this 

https://community.fs.com/blog/sfp-10g-sr-vs-sfp-10g-lrm-vs-sfp-10g-lr-which-to-choose.html

https://meraki.cisco.com/lib/pdf/meraki_datasheet_sfp.pdf

[PhilipDAth]

I don't know the answer for sure, but I think it is 99% unlikely.

You need the same type of lasers on each end.  So either both LRM, or both LR-S.

What distance do you want to cover, and do you have multimode or single-mode fibre?

[lhodovan]

The problem is that the Small business swith not support LRM and the meraki switch not support LR-s? 

So what can i do in this case? I need to use single mode 250m the max distance.

[BlakeRichardson]

I am pretty sure you will need matching pairs at each end. The wave lengths are likely different. 

[Matlyna]

LRM to LRM only for most cisco products as well as servers.

Very few instances can you use LRM to SR or LRM to LR. 

[PhilipDAth]

I've looked into this further, and I believe if you use MA-SFP-10GB-LR on the Meraki side it will be compatible with SFP-10G-LR-S on the small business side.

The "-S" optics have the same lasers as the non "-S" models.  The only real difference is the "-S" models don't support FCoE and are only designed to operate at "commercial" temperatures.

You can read more about the "-S" differences here:

https://community.fs.com/blog/cisco-10g-s-class-vs-non-s-class-modules-how-to-choose.html