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" <[email protected]> Sent: Tuesday, November 15, 2022 11:26am To: "Mel Beckman" <[email protected]> Cc: "North American Network Operators' Group" <[email protected]> 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 <[ [email protected] ]( mailto:[email protected] )> 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 <[ [email protected] ]( > mailto:[email protected] )> 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 <[ [email protected] ]( >> mailto:[email protected] )> 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
