SFP-10G-LR over Multi mode to gain extra distance

[markturner]

Hi,

I have a customer who needs to run 450 to 500 metres over OM3 using a Sup7 SFP+ interface.

The SR module only supports up to 300 metres over OM3

The LRM is designed for lower distances over  lower grade fibre typically 220metres

Can we use SFP-10G-LR with mode conditioned patch cables to gain the distance we need to run ?

I seem to remember you can do this with 1 gig fibre connections.

Thanks,

Mark

[Antonio Knox]

You will need either Single Mode or Conditioned Multi Mode fiber to complete the run that you speak of.  You can use the SFP-10G-LR for this, but it seems that you only have a Gigabit requirement (you mentioned "1 gig fibre connections").  I don't understand why you would want to use 10GE modules for this task.  You could just as easily use GLC-SX-LH for a cheaper solution.

[markturner]

Hi Antonio,

Thanks for your reply. The mention about 1 gig was just to say that I've done this before over 1gig which works fine. So the theory of it working in a similar way over 10gig should hopefully work.

This is a 10gig requirement over OM3 500 metres.

I think we may need to plan some end to end testing.

Best regards,

Mark

[Nicolas Blancpain]

Hello

Has someone finally tested 10Gbps LR over multimode ?

Not certified, but maybe it might work anyway (as LX works with multimode, even if this is supposed to be operated on monomode)

Nicolas

[anil.bhan83]

We can use 10-G LR SFP instead of 10-G SR if of distance exceeds above 300m.

LR supports up to 10 k.m

[Nicolas Blancpain]

Over multimode fiber with conditioning patch ?

[anil.bhan83]

No both sides point to point has to be same either 1 g lx single mode or
10 g
LR single mode