Re: Random shower thought: GBIC with LC connector...

[Shawn L via NANOG <nanog () nanog org>]

Those are Twin Gig Converter Modules.  They went in the 3560 series (and probably others).  You could either insert a 
10 gig module, or the converter module and get 2 1-gig sfp slots.
 

-----Original Message-----
From: "Matt Erculiani" <merculiani () gmail com>
Sent: Tuesday, November 15, 2022 11:26am
To: "Mel Beckman" <mel () beckman org>
Cc: "North American Network Operators' Group" <nanog () nanog org>
Subject: Re: Random shower thought: GBIC with LC connector...



I feel like I've seen GBIC sleeves that accept SFP modules very similar to QSFP+ CVRs, but I can't seem to find any 
evidence of these ever existing, so perhaps I'm misremembering. 
-Matt


On Tue, Nov 15, 2022 at 9:23 AM Mel Beckman <[ mel () beckman org ]( mailto:mel () beckman org )> wrote:Oh. And it’s 
not “OCD”. It’s “CDO”, with letters in ascending sequence. :)

 -mel via cell

> On Nov 15, 2022, at 8:18 AM, Mel Beckman <[ mel () beckman org ]( mailto:mel () beckman org )> wrote:
>
> No. GBIC stands for Great Big Inserted Cartridge. LC stands for Little Connector. Thus they are not compatible. 
>
> -mel via cell
>
> > On Nov 15, 2022, at 7:59 AM, Warren Kumari <[ warren () kumari net ]( mailto:warren () kumari net )> wrote:
> >
> >
> > Hi there all,
> >
> > While looking through my big box of random optics I suddenly realized that I'd never seen a GBIC with an LC 
> > connector, and I started wondering if anyone else had / if such a thing actually exists.
> >
> > Yes, I realize that this would be a fairly niche device - if you arrived somewhere with a device that took GBICs 
> > and there was existing fiber with LC connectors you could just replace the patch cable or use an LC-SC convertor, 
> > but that doesn't really satisfy my curiosity.
> >
> > A quick look through the GBIC MSA / SFF documentation implies that such a thing *could* probably exist (there is a 
> > defined value for the 'LC' connector), but I wasn't able to actually find any. It might not actually be compliant 
> > with the specs (the document I found only lists SC fiber or copper (coax with BNC, TNC or DB-9?!)), but that 
> > doesn't mean that no-one made them.
> >
> > So, has anyone seen a regular (30mm/1.2") GBIC with LC connectors? And, if so, "pics or it didn't happen"... :-)
> >
> > Obviously I don't have an actual use for this, it's just to satisfy my (OCD) curiosity...
> > W
-- 


Matt Erculiani
ERCUL-ARIN