SFP-10G-LR-S vs SFP-10G-LR

[Luciano Vigano']

Ciao,

is there anyone that can explain what is (are) the difference(s) between the two optics in the title ?

In particular what are the "unnecessary features" of the SFP-10G-LR-S ? Can they be used in UA to Core deployment ?

(http://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/bulletin-c25-733742.html)

BR,

Luciano

[Marvin Rhoads · Accepted solution]

The table below shows the key feature differences for the 10 Gbps S-class vs. C-class.

For UA to core campus applications, S-class are quite suitable.

	C-Class	S-Class
Multi-rate vs Single-rate	Multi-rate optics: Ethernet OTN WAN-PHY	Single-rate optics: Ethernet only
Operating temperature range	Commercial (0C to 70C) Extended (-5C to 85C) Industrial (-40C to 85C)	Commercial (0C to 70C) only

[Luciano Vigano']

Dear Marvin,

thanks for you kindly replay.

May I ask you where did you find the above table ?

BR,

Luciano

[Marvin Rhoads]

You're welcome.

It is from an FAQ developed internally at Cisco and provided to the partner community to assist in product presales positioning.

If it answers your question, please mark as such. Thanks.

[neeraj]

Hi Team,

Can anyone support if N3548 support 10G classic transceivers (SFP-10G-LR-S=)?

Regards,

Neeraj

[Marvin Rhoads]

They are not listed as supported in the compatibility matrix.

[Boaz Aviani]

Please note that the S Class SFP's doesn't support FCoE.

[Josh.Walker]

how do you tell when looking at the part number if it is S class or C class or can you even do that. If not where is the class specified per part number in the data sheet?

[Marvin Rhoads]

S class transceivers have "-S" at the end of the SKU (Stock Keeping Unit, also known as part number).

SFP-10G-SR = most common non-S-class 10 Gbps transceiver

SFP-10G-SR-S = S-class version of the same

To check compatibility with your equipment, use this tool:

https://tmgmatrix.cisco.com/

[bkoch1]

I was wondering the same thing. I'm looking for SFP+ modules to go from core to building distribution switches, and the cost of migrating from 10G X2 modules to SFP+ is insane!!

[fiberstorejames]

The Cisco S-class optics is compatible with non s-class optics, except that S-class optics has different temperature ranges. 

And if you want to replace the X2 module with original SFP+ module, the total cost is high, but you can find a OEM vendor to help you out. I have bought compatible Cisco SFP+ modules from Fiberstore for just $16. You can have a try !