Cisco Support Community
Community Member

GLC-LX-SM-RGD Need Clarification

Which fiber type is supported by this SFP?

In this sources, its says that MMF/SMF:

But in this - that MMF only:

P.S. I need to connect IE-3000-8TC (GLC-LX-SM-RGD) with (GLC-LH-SM) WS-C3750X-24T-S (C3KX-NM-1G)

P.S.S. sorry for my english

Hall of Fame Super Silver

GLC-LX-SM-RGD Need Clarification

I read the last reference as saying single mode only:


Gigabit Ethernet SFP, LC connector, LH (1Gps single mode) transceiver

You should be fine connecting the two devices you mention via singlemode fiber.

Community Member

GLC-LX-SM-RGD Need Clarification

Ok, but I'm still don't understand.

Can I connect two IE-3000 with GLC-LX-SM-RGD via multimode? It appears that with IE-3000 this SFP can operate only with SMF fiber type.

Hall of Fame Super Blue

Re: GLC-LX-SM-RGD Need Clarification

Not unless you use a patch-conditioning-cable.

Sent from Cisco Technical Support iPad App

Re: GLC-LX-SM-RGD Need Clarification

To add on to loelaohoo's response, the following document outlines the use of a mode conditioning patch cord when using the GLC-LX-SM-RGD SFP over multimode fibers (up to 550 meters).

As per the SFP data sheets specs:

Hope this clears things up.  Good luck!

Community Member

Re: GLC-LX-SM-RGD Need Clarification

Thanks for the reply!

I will check it

CreatePlease to create content